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Ervin Nippolainen

Ervin Nippolainen

Senior Researcher

Department of Technical Physics, Faculty of Science, Forestry and Technology

[email protected] | +358 50 463 1618

Information Publications

Research groups

Biomedical Spectroscopy Laboratory (biomedspect) 01.09.2018 -
Biophysics of Bone and Cartilage (BBC) 01.01.1998 -

Publications

124/124 items

The Relationship Between the Optical Properties of Articular Cartilage and the Biomechanical Parameters of the Tissue
Kafian‐Attari, Iman; Ebrahimi, Mohammad; Nippolainen, Ervin; Mirhashemi, Arash; Paakkari, Petri; Bergmann, Florian; Foschum, Florian; Kienle, Alwin; Töyräs, Juha; Afara, Isaac. 2025. Journal of biophotonics. [First published: 31 January 2025]: 1-13 A1 Journal article (refereed), original research
The human patellar tendon is mechanically homogenous at its mid-substance
Kositsky, Adam; Stenroth, Lauri; Nippolainen, Ervin; Torniainen, Jari; Mäkelä, Janne TA; Paakkari, Petri; Paakkonen, Tommi; Kröger, Heikki; Töyräs, Juha; Afara, Isaac O; Korhonen, Rami K. 2025. Journal of the mechanical behavior of biomedical materials. 163: A1 Journal article (refereed), original research
Comparison of site-specific tensile, compressive, and friction properties of human tibiofemoral joint cartilage and their relationship to degeneration
Ristaniemi, Aapo; Tuppurainen, Juuso; Jäntti, Jiri; Nippolainen, Ervin; Afara, Isaac O; Mononen, Mika E; Korhonen, Rami K; Mäkelä, Janne TA. 2024. Journal of biomechanics. 177: A1 Journal article (refereed), original research
Estimation of Photon Path Length and Penetration Depth in Articular Cartilage Zonal Architecture over the Therapeutic Window
Kafian-Attari, I; Nippolainen, E; Bergmann, F; George, A; Paakkari, P; Mirhashemi, A; Foschum, F; Kienle, A; Toyras, J; Afara, IO. 2024. IEEE transactions on biomedical engineering. 71: 2300-2311 A1 Journal article (refereed), original research
Infrared Spectroscopy Can Differentiate Between Cartilage Injury Models: Implication for Assessment of Cartilage Integrity
Shahini, Fatemeh; Oskouei, Soroush; Nippolainen, Ervin; Mohammadi, Ali; Sarin, Jaakko K; Moller, Nikae CR te; Brommer, Harold; Shaikh, Rubina; Korhonen, Rami K; van Weeren, P. René; Töyräs, Juha; Afara, Isaac O. 2024. Annals of biomedical engineering. 52: 2521-2533 A1 Journal article (refereed), original research
Laser-irradiating infrared attenuated total reflection spectroscopy of articular cartilage: Potential and challenges for diagnosing osteoarthritis
Krebs, P; Nägele, M; Fomina, P; Virtanen, V; Nippolainen, E; Shaikh, R; Afara, I O; Töyräs, J; Usenov, I; Sakharova, T; Artyushenko, V; Tafintseva, V; Solheim, J H; Zimmermann, B; Kohler, A; König, O; Saarakkala, S; Mizaikoff, B. 2024. Osteoarthritis and cartilage open. 6: . 100466 A1 Journal article (refereed), original research
Machine Learning Approaches for the Fusion of Near-Infrared, Mid-Infrared, and Raman Data to Identify Cartilage Degradation in Human Osteochondral Plugs
Tafintseva, Valeria; Nippolainen, Ervin; Virtanen, Vesa; Solheim, Johanne Heitmann; Zimmermann, Boris; Saarakkala, Simo; Kröger, Heikki; Kohler, Achim; Töyräs, Juha; Afara, Isaac O; Shaikh, Rubina. 2024. Applied spectroscopy. [Epub ahead of print 8 Nov 2024]: 1-11 A1 Journal article (refereed), original research
Measurement of T1ρ dispersion with compressed sensing and magnetization prepared radial balanced steady‐state free precession in spontaneous human osteoarthritis
Pala, S; Paajanen, A; Ristaniemi, A; Nippolainen, E; Afara, IO; Nykänen, O; Nissi, MJ. 2024. Magnetic resonance in medicine. 92: 2127-2139 A1 Journal article (refereed), original research
Relationship between depth-wise refractive index and biomechanical properties of human articular cartilage
Khan, Bilour; Nippolainen, Ervin; Shahini, Fatemeh; Nonappa; Popov, Alexey; Töyräs, Juha; Afara, Isaac O. 2024. Journal of biomedical optics. 29: 1-12 A1 Journal article (refereed), original research
Site-specific elastic and viscoelastic biomechanical properties of healthy and osteoarthritic human knee joint articular cartilage
Linus, Awuniji; Tanska, Petri; Nippolainen, Ervin; Tiitu, Virpi; Töyras, Juha; Korhonen, Rami K; Afara, Isaac O; Mononen, Mika E. 2024. Journal of biomechanics. 169: . 112135 A1 Journal article (refereed), original research
Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix
Kafian-Attari, Iman; Nippolainen, Ervin; Bergmann, Florian; George, Akuroma; Paakkari, Petri; Mirhashemi, Arash; Foschum, Florian; Kienle, Alwin; Töyräs, Juha; Afara, Isaac O. 2023. Journal of biomedical optics. 28: A1 Journal article (refereed), original research
Characterisation of Cartilage Damage via Fusing Mid-Infrared, Near-Infrared, and Raman Spectroscopic Data
Shaikh, Rubina; Tafintseva, Valeria; Nippolainen, Ervin; Virtanen, Vesa; Solheim, Johanne; Zimmermann, Boris; Saarakkala, Simo; Töyräs, Juha; Kohler, Achim; Afara, Isaac O. 2023. Journal of personalized medicine. 13: A1 Journal article (refereed), original research
Impact of experimental setup parameters on the measurement of articular cartilage optical properties in the visible and short near-infrared spectral bands
Kafian-Attari, Iman; Nippolainen, Ervin; Bergmann, Florian; Mirhashemi, Arash; Paakkari, Petri; Foschum, Florian; Kienle, Alwin; Töyräs, Juha; Afara, Isaac O.. 2023. Biomedical optics express. 14: 3397-3412 A1 Journal article (refereed), original research
Near-infrared spectroscopic assessment of patellar tendon mechanics
Kositsky, Adam; Torniainen, Jari; Stenroth, Lauri; Nippolainen, Ervin; Mäkelä, Janne TA; Paakkari, Petri; Kröger, Heikki; Töyräs, Juha; Korhonen, Rami K; Afara, Isaac O. 2023. abstract
Non-neotissue constituents as underestimated confounders in the assessment of tissue engineered constructs by near-infrared spectroscopy
Elkadi, Omar Anwar; Abinzano, Florencia; Nippolainen, Ervin; González, Ona Bach; Levato, Riccardo; Malda, Jos; Afara, Isaac O. 2023. Materials today bio. 2024; 24: A1 Journal article (refereed), original research
Patellar tendon and tibial cartilage viscoelastic properties are inversely related in osteoarthritic knees
Kositsky, Adam; Linus, Awuniji; Stenroth, Lauri; Mononen, Mika E; Nippolainen, Ervin; Kröger, Heikki; Töyräs, Juha; Mäkelä, Janne TA; Tanska, Petri; Afara, Isaac O; Korhonen, Rami K. 2023. Transactions of the annual meeting of the Orthopaedic Research Society abstract
Raman Spectroscopy and Machine Learning Enables Estimation of Articular Cartilage Structural, Compositional, and Functional Properties
Shehata, Eslam; Nippolainen, Ervin; Shaikh, Rubina; Ronkainen, Ari Petteri; Töyräs, Juha; Sarin, Jaakko K; Afara, Isaac O. 2023. Annals of biomedical engineering. 51: 2301-2312 A1 Journal article (refereed), original research
Refractive index of human articular cartilage varies with tissue structure and composition
Khan, Bilour; Nippolainen, Ervin; Shahini, Fatemeh; Torniainen, Jari; Mikkonen, Santtu; Nonappa, null; Popov, Alexey; Toyras, Juha; Afara, Isaac O.. 2023. Journal of the optical society of america a: optics image science and vision. 40: 2205-2214 A1 Journal article (refereed), original research
Visible and Near-Infrared Spectroscopy Enables Differentiation of Normal and Early Osteoarthritic Human Knee Joint Articular Cartilage
Linus, Awuniji; Tanska, Petri; Sarin, Jaakko K.; Nippolainen, Ervin; Tiitu, Virpi; Mäkelä, Janne T.A.; Töyräs, Juha; Korhonen, Rami K.; Mononen, Mika E.; Afara, Isaac O.. 2023. Annals of biomedical engineering. 51: 2245-2257 A1 Journal article (refereed), original research
Assessment of Ligament Viscoelastic Properties Using Raman Spectroscopy
Cui, Andy; Nippolainen, Ervin; Shaikh, Rubina; Torniainen, Jari; Ristaniemi, Aapo; Finnilä, Mikko; Korhonen, Rami K.; Saarakkala, Simo; Herzog, Walter; Töyräs, Juha; Afara, Isaac O.. 2022. Annals of biomedical engineering. 50: 1134-1142 A1 Journal article (refereed), original research
Elastic and viscoelastic human patellar tendon regional properties
Kositsky, Adam; Stenroth, Lauri; Nippolainen, Ervin; Mäkelä, Janne; Paakkari, Petri; Torniainen, Jari; Kröger, Heikki; Afara, Isaac; Korhonen, Rami. 2022. abstract
Infrared spectroscopy is suitable for objective assessment of articular cartilage health
Virtanen, V; Tafintseva, V; Shaikh, R; Nippolainen, E; Haas, J; Afara, IO; Töyräs, J; Kröger, H; Solheim, J; Zimmermann, B; Kohler, A; Mizaikoff, B; Finnilä, M; Rieppo, L; Saarakkala, S. 2022. Osteoarthritis and cartilage open. 4: A1 Journal article (refereed), original research
Preclassification of Broadband and Sparse Infrared Data by Multiplicative Signal Correction Approach
Rehman, Hafeez Ur; Tafintseva, Valeria; Zimmermann, Boris; Solheim, Johanne Heitmann; Virtanen, Vesa; Shaikh, Rubina; Nippolainen, Ervin; Afara, Isaac; Saarakkala, Simo; Rieppo, Lassi; Krebs, Patrick; Fomina, Polina; Mizaikoff, Boris; Kohler, Achim. 2022. Molecules. 27: A1 Journal article (refereed), original research
Preprocessing Strategies for Sparse Infrared Spectroscopy: A Case Study on Cartilage Diagnostics
Tafintseva, Valeria; Lintvedt, Tiril Aurora; Solheim, Johanne Heitmann; Zimmermann, Boris; Rehman, Hafeez Ur; Virtanen, Vesa; Shaikh, Rubina; Nippolainen, Ervin; Afara, Isaac; Saarakkala, Simo; Rieppo, Lassi; Krebs, Patrick; Fomina, Polina; Mizaikoff, Boris; Kohler, Achim. 2022. Molecules. 27: A1 Journal article (refereed), original research
Viscoelastic properties of six regions of the human patellar tendon
Kositsky, Adam; Stenroth, Lauri; Nippolainen, Ervin; Mäkelä, Janne T.A; Paakkari, Petri; Torniainen, Jari; Kröger, Heikki; Afara, Isaac O; Korhonen, Rami K. 2022. Transactions of the annual meeting of the Orthopaedic Research Society abstract
Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity
Khan, Bilour; Kafian-Attari, Iman; Nippolainen, Ervin; Shaikh, Rubina; Semenov, Dmitry; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O.. 2021. Biomedical optics express. 12: 6066-6080 A1 Journal article (refereed), original research
Characterization of connective tissues using near-infrared spectroscopy and imaging
Afara, Isaac O; Shaikh, Rubina; Nippolainen, Ervin; Querido, William; Torniainen, Jari; Sarin, Jaakko K; Kandel, Shital; Pleshko, Nancy; Töyräs, Juha. 2021. Nature protocols. 16: 1297-1329 A1 Journal article (refereed), original research
Infrared Fiber-Optic Spectroscopy Detects Bovine Articular Cartilage Degeneration
Virtanen, Vesa; Nippolainen, Ervin; Shaikh, Rubina; Afara, Isaac O; Töyräs, Juha; Solheim, Johanne; Tafintseva, Valeria; Zimmermann, Boris; Kohler, Achim; Saarakkala, Simo; Rieppo, Lassi. 2021. Cartilage. 13: 285S-294S A1 Journal article (refereed), original research
Machine learning augmented near-infrared spectroscopy: In vivo follow-up of cartilage defects
Sarin, Jaakko K; Te Moller, Nikae Cr; Mohammadi, Ali; Prakash, Mithilesh; Torniainen, Jari; Brommer, Harold; Nippolainen, Ervin; Shaikh, Rubina; Mäkelä, Janne Ta; Korhonen, Rami K; René van Weeren, P; Afara, Isaac O; Töyräs, Juha. 2021. Osteoarthritis and cartilage. 29: 423-432 A1 Journal article (refereed), original research
Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries
Shaikh, Rubina; Nippolainen, Ervin; Virtanen, Vesa; Torniainen, Jari; Rieppo, Lassi; Saarakkala, Simo; Afara, Isaac O; Töyräs, Juha. 2021. Journal of raman spectroscopy. 52: 796-804 A1 Journal article (refereed), original research
Mid-infrared and Near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage
Nippolainen, Ervin; Shaikh, Rubina; Virtanen, Vesa; Rieppo, Lassi; Afara, Isaac; Saarakkala, Simo; Töyräs, Juha. 2020. Optical Society of America
Mid-infrared spectroscopic assessment of cartilage degeneration
Shaikh, Rubina; Nippolainen, Ervin; Virtanen, Vesa; Rieppo, Lassi; Haas, Julian; Mizaikoff, Boris; Artyushenko, Viacheslav; Bibikova, Olga; Afara, Isaac; Saarakkala, Simo; Töyräs, Juha. 2020. Optical Society of America
Near Infrared Spectroscopy Enables Differentiation of Mechanically and Enzymatically Induced Cartilage Injuries
Nippolainen, Ervin; Shaikh, Rubina; Virtanen, Vesa; Rieppo, Lassi; Saarakkala, Simo; Töyräs, Juha; Afara, Isaac. 2020. Annals of biomedical engineering. 48: 2343-2353 A1 Journal article (refereed), original research
Optical properties of articular cartilage in the near-infrared spectral range are related to its proteoglycan content
Kafian-Attari, Iman; Semenov, Dmitry; Nippolainen, Ervin; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O. Teoksessa: Tuchin, Valery V; Blondel, Walter CPM; Zalevsky, Zeev(toim.) , 2020. Proceedings Volume 11363, Tissue Optics and Photonics. s. 113630W. SPIE, The International Society for Optical Engineering A4 Conference proceedings
Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: a 9-month equine groove model study
Te Moller, Nikae CR; Mohammadi, Ali; Plomp, Saskia; Serra Bragança, Filipe M; Beukers, Martijn; Pouran, Behdad; Afara, Isaac O; Nippolainen, Ervin; Mäkelä, Janne TA; Korhonen, Rami K; Töyräs, Juha; Brommer, Harold; René van Weeren, P. 2020. Journal of orthopaedic research. 2021; 39: 2363-2375 A1 Journal article (refereed), original research
Tissue optical properties combined with machine learning enables estimation of articular cartilage composition and functional integrity
Kafian-Attari, Iman; Nippolainen, Ervin; Semenov, Dmitry; Hauta-Kasari, Markku; Töyräs, Juha; Afara, Isaac O. 2020. Biomedical optics express. 11: 6480-6494 A1 Journal article (refereed), original research
A new look at the essence of the imaging photoplethysmography
Kamshilin Alexei A, Nippolainen Ervin, Sidorov Igor S, Vasilev Petr V, Erofeev Nikolai P, Podolian Natalia P, Romashko Roman V. 2015. Scientific reports. 5: 10494 A1 Journal article (refereed), original research
Photoplethysmographic Waveform as a Function of Subject's Age
Nippolainen E, Podolian N.P, Romashko R.V, Kulchin Y.N, Kamshilin A.A. Teoksessa: (toim.) , 2015. . s. 241-245. Elsevier BV A4 Conference proceedings
Ambiguity of mapping the relative phase of blood pulsations
Teplov Victor, Nippolainen Ervin, Makarenko Alexander A, Giniatullin Rashid, Kamshilin Alexei A. 2014. Biomedical optics express. 5: 3123-3139 A1 Journal article (refereed), original research
Fast vascular component of cortical spreading depression revealed in rats by blood pulsation imaging
Teplov Victor, Shatillo Artem, Nippolainen Ervin, Gröhn Olli, Giniatullin Rashid, Kamshilin Alexei A. 2014. Journal of biomedical optics. 19: 046011-1-9 A1 Journal article (refereed), original research
Highly sensitive and noise-protected adaptive optical microphone based on a dynamic photorefractive hologram
Romashko RV, Kulchin YN, Nippolainen E. 2014. Laser physics. 24: 115604 A1 Journal article (refereed), original research
Kink Wave Propagation in Thin Isothermal Magnetic Flux Tubes
Lopin IP, Nagorny IG, Nippolainen E. 2014. Solar physics. 289: 3033-3041 A1 Journal article (refereed), original research
Asynchronicity of facial blood perfusion in migraine
N. Zaproudina, V. Teplov, E. Nippolainen, J. A. Lipponen, A. A. Kamshilin, M. Närhi, P. A. Karjalainen, and R. Giniatullin. 2013. PLoS ONE. 8: e80189 A1 Journal article (refereed), original research
Blood pulsations imaging of cortical spreading depression in the rat's cortex
V. Teplov, A. Shatillo, R. Giniatullin, E. Nippolainen, and A. A. Kamshilin. Teoksessa: K.-E. Peiponen, Yu. Svirko(toim.) , 2013. 6-th Finnish-Russian Photonics and Laser Symposium PALS'13. s. 55. A4 Conference proceedings
Fast mapping of surface defects by using dynamic speckles
Igor Sidorov, Ervin Nippolainen, and Alexei A. Kamshilin. Teoksessa: Editor I. Gurov(toim.) , 2013. The 3-d International Topical Meeting on Optical Sensing and Artifitial Vision: OSAV'2012. s. 88-94. American Institute of Physics A4 Conference proceedings
Fiber optic sensor for measuring high electric alternating currents
E. Nippolainen, M. Haapalainen, A. A. Kamshilin, and A. S. B. Sombra. 2013.
Optical system for monitoring dynamics of blood perfusion
Victor Teplov, Ervin Nippolainen, and Alexei A. Kamshilin. Teoksessa: Editor I. Gurov(toim.) , 2013. The 3-d International Topical Meeting on Optical Sensing and Artifitial Vision: OSAV'2012. s. 205 - 211. American Institute of Physics A4 Conference proceedings
Study of the variability of microcirculation by blood pulsation imaging
E. Nippolainen, V. Teplov, S. V. Miridonov, R. Giniatullin, and A. A. Kamshilin. 2013.
Ultrafast linear photogalvanic current in semiconductors
A. A. Kamshilin, E. Nippolainen, T. Shimura, and K. Kuroda. 2013.
Variability of microcirculation detected by blood pulsation imaging
Kamshilin AA, Teplov V, Nippolainen E, Miridonov SV, Giniatullin R. 2013. PLoS ONE. 8: e57117 A1 Journal article (refereed), original research
Variability of microcirculation studied by blood pulsation imaging
Nippolainen E, Teplov V, Miridonov SV, Giniatullin R, Kamshilin AA. Teoksessa: K.-E. Peiponen, Yu. Svirko(toim.) , 2013. 6-th Finnish-Russian Photonics and Laser Symposium PALS'13. s. 27. A4 Conference proceedings
2D photoplethysmography system for detection pulsative changes in migrane
Nippolainen Ervin, Zaproudina Nina, Teplov Victor, Kamshilin Alexei A, Giniatullin Rashid. 2012.
Accuracy of the reflectance spectrum recovery in a light-emitting diode-based multispectral imaging system
Fauch L, Nippolainen E, Kamshilin AA. 2012. Optical engineering. 51: 53201 A1 Journal article (refereed), original research
Amplitude autocorrelation of femtosecond laser pulses using linear photogalvanic effect in sillenite crystals
Grachev AI, Romashko RV, Kulchin YuN, Golik SS, Nippolainen EV, Kamshilin AA. 2012. Laser physics. 22: 1064-1069 A1 Journal article (refereed), original research
Detection of small surface defects of nontransparent scattering materials by using dynamic speckles
Sidorov Igor, Nippolainen Ervin, Kamshilin Alexei A. 2012. Applied optics. 51: 1781-1787 A1 Journal article (refereed), original research
Detection of surface defects by means of dynamic speckles
Nippolainen Ervin, Sidorov Igor, Kamshilin Alexei A. Teoksessa: Angel F. Doval, Cristina Trillo, J. Carlos Lopez-Vazquez(toim.) , 2012. Speckle 2012. s. 841313-1. SPIE A3 Book section, Chapters in research books
Detection pulsative changes in migraine by using 2D photoplethysmography system
Nippolainen Ervin, Zaproudina Nina, Teplov Victor, Kamshilin Alexei A, Giniatullin Rashid. 2012.
Estimation of light penetration depth in turbid media using laser spackles
Igor Sidorov, Seruej Miridonov, Ervin Nippolainen, Alexei Kamshilin. Teoksessa: (toim.) , 2012. . s. 89-90. ITMO State University A4 Conference proceedings
LED-based multispectral imaging system for online analysis of pharmaceutics tablets
Nippolainen E, Miridonov SV, Kamshilin AA. Teoksessa: V. N. Vasiliev and M. Takeda(toim.) , 2012. 8-th International Conference on Optics-photonics Design & Fabrication (ODF'12). s. 197-198. A4 Conference proceedings
Light penetration depth of a turbid media estimated by cross-correlation of speckle patterns
Sidorov Igor, Miridonov Serguei V, Nippolainen Ervin, Kamshilin Alexei A. 2012. Proceedings of SPIE : the International Society for Optical Engineering
Light penetration depth of a turbit media estimated by cross-correlation of speckle patterns
Sidorov Igor, Miridonov Serguei V, Nippolainen Ervin, Kamshilin Alexei A. 2012.
Surface defect detection systems based on dynamic speckles
Sidorov IS, Nippolainen E, Kamshilin AA. Teoksessa: V. N. Vasiliev and M. Takeda(toim.) , 2012. 8-th International Conference on Optics-photonics Design & Fabrication (ODF'12). s. 285-286. A4 Conference proceedings
An LED-based multispectral imaging system for tablet quality control
Ervasti Tuomas, Nippolainen Ervin, Toiviainen Maunu, Kuivalainen Kalle, Ketolainen Jarkko, Aaltonen Jaakko. 2011.
Detection of small surface defects of large metallic sheets by using dynamic speckles
Igor Sidorov, Ervin Nippolainen, and Alexei A. Kamshilin. 2011. Oulun yliopisto
Fast photogalvanic Response of a CdTe crystal
Ervin Nippolainen, Hemmo Tuovinen, and Alexei A. Kamshilin. Teoksessa: Alexey Popov, Alexander Bykov, Janne Lauri, Matti Kinnunen(toim.) , 2011. Optics Days 2011, Book of abstracts. s. 112. Oulun yliopisto A4 Conference proceedings
Optical detection of blood pulsation dynamics in rat brain
Victor Teplov, Riku Saarenheimo, Rashid Giniatulin, Artem Shatillo, Sergei Miridonov, Ervin Nippolainen, Alexei Kamshilin. Teoksessa: #VALUE!(toim.) , 2011. 5th Finnish-Russian Photonics and Laser Symposium, technical digest. s. 87-88. A4 Conference proceedings
Photoplethysmographic imaging of high spatial resolution
A. A. Kamshilin, S. Meridonov, V. Teplov, S. Saarenheimo, and E. Nippolainen. 2011. Biomedical optics express. 2: 996-1006 A1 Journal article (refereed), original research
Reconstruction of reflectance spectra by using fast multispectral imaging system
Laure Fauch, Ervin Nippolainen, Victor Teplov, and Alexei A. Kamshilin. Teoksessa: Alexei Popov, alexander Bykov, Janne Laur, Matti Kinnunen(toim.) , 2011. Optics Days 2001, Book of Abstracts. s. 62. Oulun yliopisto A4 Conference proceedings
Recovery of absolute reflectance spectra from compressed data obtained with a fast multispectral imaging system
Laure Fauch, Ervin Nippolainen, and Alexei A. Kamshilin. Teoksessa: Jarkko J. Saarinen(toim.) , 2011. OIE'11, The Ninth Japan-Finland joint symposium on optics in engineering. s. 96-97. A4 Conference proceedings
Remote optical technique of blood perfusion visualization
Alexei Kamshilin, Serguei Miridonov, Victor Teplov, Ervin Nippolainen. Teoksessa: I. Gurov, Ed.(toim.) , 2011. 5th Finnish-Russian Photonics and Laser Symposium, technical digest. s. 25-26. ITMO State University A4 Conference proceedings
Simple method for in vivo visualizations of blood pulsations distribution
Victor Teplov, Serguei Miridonov, Ervin Nippolainen, and Alexei A. Kamshilin. Teoksessa: Jarkko J. Saarinen(toim.) , 2011. OIE'11, The Ninth Japan-Finland joint symposium on optics in engineering. s. 34-35. A4 Conference proceedings
Visualization of blood perfusion in a human skin
Viktor Teplov, Serguei Miridonov, Riku Saarenheimo, Ervin Nippolainen and Alexei A. Kamshilin. 2011. University of Oulu
Calibration of multispectral imaging system with light emitting diodes
Laure Fauch, Victor Teplov, Ervin Nippolainen, and Alexei A. Kamshilin. 2010. Pacific science review. 12: 164-169 A1 Journal article (refereed), original research
Distance sensing using dynamic speckles formed by MEMS deflector
I. S. Sidorov, S. V. Miridonov, E. Nippolainen, A. A. Kamshilin. 2010. Optical review. 17: 161-165 A1 Journal article (refereed), original research
Estimating of Ingradients concentration by using multispectral imaging system
Ervin Nippolainen, Laure Fauch, Serguei Miridonov, Alexei A. Kamshilin. 2010. Pacific science review. 12: 41 A1 Journal article (refereed), original research
Fast noncontact measurements of tablet dye concentration
Ervin Nippolainen, Tuomas Ervasti, Laure Fauch, Serguei V. Miridonov, Jarkko Ketolainen, Alexei A. Kamshilin. 2010. Optics express. 18: 15634 A1 Journal article (refereed), original research
Measuring tablet porosity using multispectral imaging system
E. Nippolainen, T. Ervasti, J. Ketolainen, A. A. Kamshilin. 2010. Optical review. 17: 323-326 A1 Journal article (refereed), original research
Multispectral imaging system for fast acquisition of spatial distribution of reflectance spectra
Laure Fauch, Victor Teplov, Ervin Nippolainen, Alexei A. Kamshilin. 2010. Pacific science review. 12: 45 A1 Journal article (refereed), original research
Novel multispectral imaging system for pharmaceutical applications
Ervin nippolainen, Laure Fauch, Serguei Miridonov, and Alexei A. Kamshilin. 2010. Pacific science review. 12: 203-207 A1 Journal article (refereed), original research
Novel optoelectronic system for fast acquisition of reflection spectra
V. Teplov, L. Fauch, R. Saarenheimo, E. Nippolainen, and A. A. Kamshilin. Teoksessa: Valentin I. Vlad(toim.) , 2010. ROMOPTO 2009: Ninth Conference on Optics: Micro- to Nanophotonics II. s. 74690S (9 pages). SPIE A4 Conference proceedings
Recovery of reflection spectra in a multispectral imaging system with light emitting diodes
Laure Fauch, Ervin Nippolainen, Victor Teplov, and Alexei A. Kamshilin. 2010. Optics express. 18: 23394-23405 A1 Journal article (refereed), original research
Speckle-based sensor system for real-time distance and thickness monitoring of fast moving objects
D. V. Semenov, I. S. Sidorov, E. Nippolainen, A. A. Kamshilin. 2010. Measurement science and technology. 21: 045304 (4 pages) A1 Journal article (refereed), original research
Accuracy of measuring systems using dynamic speckles
Miridonov SV, Sidorov I, Nippolainen E, Kamshilin AA. 2009. Journal of the optical society of america a: optics image science and vision. 26: 745-753 A1 Journal article (refereed), original research
Distance sensing to rough semitransparent and multiscattering materials using dynamic speckles
Semenov D, Sidorov I, Nippolainen E. 2009. Applied optics. 48: 5266-5273 A1 Journal article (refereed), original research
Fast acquisition of reflectance spectra using wide spectral lines
Fauch L, Teplov V, Nippolainen E, Kamshilin A. 2009. Optical review. 16: 472-475 A1 Journal article (refereed), original research
Optical orientation of dipolar centers: theory, experiment, application
Nippolainen E, Grachev AI, Kamshilin AA. 2009. Laser physics. 19: 870-875 A1 Journal article (refereed), original research
Accuracy of optical sensors based on spatially filtered dynamic speckles
Semenov D, Nippolainen E, Miridonov SV, Kamshilin AA. Teoksessa: (toim.) , 2008. OSAV'08. The 2nd International Topical Meeting on Optical Sensing and Artificial Vision. s. 44-45. A4 Conference proceedings
Accurate and fast recognition of colors using light source controlled by computer
Fauch L, Nippolainen E, Kamshilin AA. Teoksessa: (toim.) , 2008. OSAV'08. The 2nd International Topical Meeting on Optical Sensing and Artificial Vision. s. 23-24. A4 Conference proceedings
Computer controlled set of light-emitting diodes for 2d spectral analysis
Nippolainen E, Kamshilin AA. Teoksessa: (toim.) , 2008. CGIV 2008 / MCS/08 4th European Conference on Colour in Graphics, Imaging, and Vision 10th International Symposium on Multispectral Colour Science (CD). s. 481-483. A4 Conference proceedings
Correlation of spatially filtered dynamic speckles in distance measurement application
Semenov DV, Nippolainen E, Miridonov SV, Kamshilin AA. Teoksessa: Wetter NU, Frejlich J(toim.) , 2008. 6th Ibero-American Conference on Optics and the 9th Latin-American Meeting on Optics, Lasers and Applications. s. 577-582. AIP A4 Conference proceedings
Dynamic-speckle profilometer for online measurements of coating thickness
Kamchiline AA, Semenov D, Nippolainen E, Miridonov S. 2008. Proceedings of SPIE : the International Society for Optical Engineering. 7022: 7022B-1-12 A1 Journal article (refereed), original research
Fast and accurate colours classification using a light source controlled by computer
Fauch L, Nippolainen E, Kamshilin A. Teoksessa: (toim.) , 2008. 6th International Conference on Optics-photonics Design & Fabrication. ODF'08. s. 483-484. A4 Conference proceedings
New approach for fast accurate color-pattern recognition
Kamshilin AA, Fauch L, Nippolainen E. Teoksessa: Wetter NU, Frejlich J (Eds)(toim.) , 2008. 6th Ibero-American Conference on Optics (RIAO) and the 9th Latin-American Meeting on Optics, Lasers and Applications (OPTILAS). s. 33-38. AIP A4 Conference proceedings
Optical orientation of dipolar centers in Bi12SiO20 crystal grown in an oxygen-free atmosphere
Grachev AI, Nippolainen E, Kamshilin AA. Teoksessa: Shcherbakov IA, Myllylä, R, Priezzhev AV, Kinnunen M, Pustovoy VI, Kirillin MY, Popov, AP(toim.) , 2008. Advanced Laser Technologies 2007. The 15th International Conference on Advanced Laser Technologies, ALT'07. s. 70220B-70220B-8. A4 Conference proceedings
Statistical properties of dynamic speckles formed by a deflecting laser beam
Semenov D, Miridonov SV, Nippolainen E, Kamshilin AA. 2008. Optics express. 16: 1238-1249 A1 Journal article (refereed), original research
Statistics of dynamic speckles in application to distance measurements
Kamshilin AA, Semenov D, Nippolainen E. Teoksessa: (toim.) , 2008. ODF'08. The 6th International Conference on Optics-photonics Design & Fabrication. s. 61-62. A4 Conference proceedings
Accuracy of dynamic-speckle profilometers
Kamshilin AA, Semenov D, Nippolainen E, Miridonov SV. Teoksessa: Peiponen K-E, Hernberg R, Yatagai T(toim.) , 2007. Technical Digest, OIE-07, The Seventh Finnish-Japanese Joint Symposium on Optics in Engineering. s. 79-80. A4 Conference proceedings
Chromatic discrimination by use of computer controlled set of light-emitting diodes
Kamshilin AA, Nippolainen E. 2007. Optics express. 15: 15093-15100 A1 Journal article (refereed), original research
Comparison of acousto-optic deflectors for dynamic-speckle distance-measurement application
Semenov DV, Nippolainen E, Kamshilin AA. 2007. Journal of optics a: pure and applied optics. : 704-708 A1 Journal article (refereed), original research
Dynamic-speckle profilometer for online measurements of coating thickness
Kamshilin AA, Semenov DV, Nippolainen E, Miridonov S. Teoksessa: (toim.) , 2007. Third International Conference on Optical and Laser Diagnostics. s. 012021, 6 s. City University in Collaboration with the IOP A4 Conference proceedings
Experimental observation of optical orientation of dipolar centers
Grachev AI, Nippolainen E, Kamshilin AA. 2007. Optics express. 15: 11500-11506 A1 Journal article (refereed), original research
Fast and accurate optical profilometer
Nippolainen E, Semenov D, Kamshilin AA. Teoksessa: (toim.) , 2007. PALS-2007, 3rd Russian-Finnish Meeting, Photonics and Laser Symposium. s. 72-73. A4 Conference proceedings
Optical implementation of precise color classification using computer controlled set of light emitting diodes
Fauch L, Nippolainen E, Kamshilin AA, Hauta-Kasari M, Parkkinen J, Jääskeläinen T. 2007. Optical review. 14: 243-245 A1 Journal article (refereed), original research
Optical orientation of dipolar centers: Theory end experiments
Nippolainen E, Kamshilin AA, Grachev AI. Teoksessa: (toim.) , 2007. PALS-2007, 3rd Russian-Finnish Meeting, Photonics and Laser Symposium. s. 70-71. A4 Conference proceedings
Accuracy and resolution of a dynamic-speckle profilometer
Semenov DV, Nippolainen E, Kamshilin A. 2006. Applied optics. 45: 411-418 A1 Journal article (refereed), original research
Adaptive fiber-optic interferometer for ultra-small dynamic deformation measurement
Romashko RV, Kulchin YN, Di Girolamo S, Nippolainen E, Kamshilin AA, Launay JC. Teoksessa: (toim.) , 2006. Proceedings of ODIMAP V. 5th Topical Meeting on Optoelectronic Distance/Displacement Measurements and Applications. s. 33-38. A4 Conference proceedings
Adaptive fiber-optic interferometer with CdTe crystal for vibrations measurement
Romashko RV, Di Giloramo S, Nippolainen E, Laynay JC, Kamshilin AA. Teoksessa: Tomasini EP(toim.) , 2006. 7th International Conference on Vibration Measurements by Laser Techniques. s. 634516-1 - 634516-9. A4 Conference proceedings
Adaptive fiber-optic vibration sensor based on CdTe crystal
Romashko RV, Kulchin YN, Di Giloramo S, Nippolainen E, Kamshilin AA, Launay JC. Teoksessa: (toim.) , 2006. The 18th International Optical Fiber Sensors Conference. Technical Digest. (CD-ROM). s. ThB6. OSA A4 Conference proceedings
An ultra-fast distance sensor based on dynamic specles generated by acousto-optic deflection
Semenov DV, Nippolainen E, Kamshilin AA, Belyaev AV, Andreev SV, Gurevich BS. 2006. Measurement science and technology. 17: 2906-2912 A1 Journal article (refereed), original research
Color representation by use of computercontrolled set of light emitting diodes
Lebedeva SA, Nippolainen E, Kamshilin A. Teoksessa: Calvo M, Pavlov, AV, Jahns J(toim.) , 2006. Proceedings of the ICO Topical Meeting on Optoinformatics Information Photonics 2006. s. 491-492. ITMO A4 Conference proceedings
Computer acquisition of 3D images utilizing dynamic speckles
Kamshilin AA, Semenov DV, Nippolainen E, Raita E. Teoksessa: Denisyuk Y, Sainov V, Stoykova E(toim.) , 2006. Holography 2005. International Conference on Holography, Optical Recording, and Processing of Information. s. 62521E-1 - 62521E-9. SPIE. The International Society for Optical Engineering A4 Conference proceedings
Computer controlled light source for spectral analysis
Kamshilin AA, Lebedeva S, Nippolainen E. Teoksessa: (toim.) , 2006. ODF¿06 Nara, Technical Digest of 5th International Conference on Optics-photonics Design & Fabrication. s. 323-324. A4 Conference proceedings
Fast distance measurements based on dynamic speckles induced by acousto-optic scanning
Nippolainen E, Semenov DV, Kamshilin AA, Belyaev AV, Andreev SV, Gurevich BS. Teoksessa: Slangen P, Cerruti C(toim.) , 2006. Specle06: Speckles, From Grains fo Flowers. s. 634128-1-634128-6. SPIE A4 Conference proceedings
Fast dynamic-speckles distance sensor independent of object motion
Semenov DV, Nippolainen E, Kamshilin A. Teoksessa: (toim.) , 2006. Proceedings of ODIMAP V. 5th Topical Meeting on Optoelectronic Distance /Displacement Measurements and Applications. s. 147-152. A4 Conference proceedings
Optoelectronic phenomena based on electronic processes with participation of dipolar centers in crystal matrix
Nippolainen E, Grachev AI, Kamshilin A. Teoksessa: Kauranen M, Laitinen A, Nieminen J, Rantala TT(toim.) , 2006. Proceedings of the XL Annual Conference of the Finnish Physical Society. s. 297. A4 Conference proceedings
Photogalvanic effect induced by an electric field
Grachev AI, Nippolainen E, Kamshilin AA. 2006. New journal of physics. 8: 1-13 A1 Journal article (refereed), original research
Scanning ultra fast distance sensor based on acousto-optic deflection
Semenov DV, Nippolainen E, Kamshilin AA. Teoksessa: Sudbo S, Arisholm G(toim.) , 2006. 2006 Northern Optics Conference Proceedings. s. 17-22. IEEE A4 Conference proceedings
Surface profile acquisition using dynamic speckles
Semenov DV, Nippolainen E, Raita E, Kamshilin AA. Teoksessa: Arecchi T, Gurov IP, Yatagai T, Panchenko VY, Golubev VS(toim.) , 2006. LAT 2005: Laser Sensing, Imaging, and Information Technologies. s. 61620B-1-10. A4 Conference proceedings
A novel light source for precise spectral color imaging
Kamshilin AA, Nippolainen E, Belyaev AV, Andreev SV, Gurevich BS, Raita E. Teoksessa: Uozumi J, Yatagai T, Peiponen K-E(toim.) , 2005. OIE'05. Sixth Japan-Finland Joint Symposium on Optics in Engineering. s. 53-54. Hokkai-Gakuen University, Optical Society of Japan A4 Conference proceedings
Dynamic speckles for 3D profile measuremants
Semenov DV, Nippolainen E, Kamshilin AA. Teoksessa: Kalliokoski J, Karttunen K(toim.) , 2005. PALS 2005 - Photonics and Laser Symposium Proceedings. s. 44-45. University of Oulu, MILA A4 Conference proceedings
Fast distance measurements by use of dynamic speckles
Semenov DV, Nippolainen E, Kamshilin AA. 2005. Optics letters. 30: 1-3 A1 Journal article (refereed), original research
Fast distance sensing by use of the speckle effect
Nippolainen E, Semenov DV, Kamchiline AA, Belyaev AV, Andreev SV, Gurevich BS. Teoksessa: Osten W, Gorecki C, Novak E(toim.) , 2005. Optical Measurements Systems for Industrial Inspection IV. Proceedings of SPIE. s. 691-697. A4 Conference proceedings
Measurements of the paper thickness by use of dynamic speckles
Semenov D.V., Nippolainen E., Kamshilin AA. Teoksessa: Uozumi J, Yatagai T, Peiponen K-E(toim.) , 2005. OIE'05. Sixth Japan-Finland Joint Symposium on Optics in Engineering. s. 67-68. Hokkai-Gakuen University, Optical Society of Japan A4 Conference proceedings
The fastest optical sensor for accurate distance measurements on moving objects
Kamshilin AA, Semenov D, Nippolainen E. Teoksessa: (toim.) , 2004. Proceeding of ODIMAP IV. 4th Topical Meeting on Optoelectronic Distance/Displacement Measurements and Applications. s. 304-309. A4 Conference proceedings

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Ervin Nippolainen

Research groups

The Relationship Between the Optical Properties of Articular Cartilage and the Biomechanical Parameters of the Tissue

The human patellar tendon is mechanically homogenous at its mid-substance

Comparison of site-specific tensile, compressive, and friction properties of human tibiofemoral joint cartilage and their relationship to degeneration

Estimation of Photon Path Length and Penetration Depth in Articular Cartilage Zonal Architecture over the Therapeutic Window

Infrared Spectroscopy Can Differentiate Between Cartilage Injury Models: Implication for Assessment of Cartilage Integrity

Laser-irradiating infrared attenuated total reflection spectroscopy of articular cartilage: Potential and challenges for diagnosing osteoarthritis

Machine Learning Approaches for the Fusion of Near-Infrared, Mid-Infrared, and Raman Data to Identify Cartilage Degradation in Human Osteochondral Plugs

Measurement of T1ρ dispersion with compressed sensing and magnetization prepared radial balanced steady‐state free precession in spontaneous human osteoarthritis

Relationship between depth-wise refractive index and biomechanical properties of human articular cartilage

Site-specific elastic and viscoelastic biomechanical properties of healthy and osteoarthritic human knee joint articular cartilage

Broadband scattering properties of articular cartilage zones and their relationship with the heterogenous structure of articular cartilage extracellular matrix

Characterisation of Cartilage Damage via Fusing Mid-Infrared, Near-Infrared, and Raman Spectroscopic Data

Impact of experimental setup parameters on the measurement of articular cartilage optical properties in the visible and short near-infrared spectral bands

Near-infrared spectroscopic assessment of patellar tendon mechanics

Non-neotissue constituents as underestimated confounders in the assessment of tissue engineered constructs by near-infrared spectroscopy

Patellar tendon and tibial cartilage viscoelastic properties are inversely related in osteoarthritic knees

Raman Spectroscopy and Machine Learning Enables Estimation of Articular Cartilage Structural, Compositional, and Functional Properties

Refractive index of human articular cartilage varies with tissue structure and composition

Visible and Near-Infrared Spectroscopy Enables Differentiation of Normal and Early Osteoarthritic Human Knee Joint Articular Cartilage

Assessment of Ligament Viscoelastic Properties Using Raman Spectroscopy

Elastic and viscoelastic human patellar tendon regional properties

Infrared spectroscopy is suitable for objective assessment of articular cartilage health

Preclassification of Broadband and Sparse Infrared Data by Multiplicative Signal Correction Approach

Preprocessing Strategies for Sparse Infrared Spectroscopy: A Case Study on Cartilage Diagnostics

Viscoelastic properties of six regions of the human patellar tendon

Articular cartilage optical properties in the near-infrared (NIR) spectral range vary with depth and tissue integrity

Characterization of connective tissues using near-infrared spectroscopy and imaging

Infrared Fiber-Optic Spectroscopy Detects Bovine Articular Cartilage Degeneration

Machine learning augmented near-infrared spectroscopy: In vivo follow-up of cartilage defects

Raman spectroscopy is sensitive to biochemical changes related to various cartilage injuries

Mid-infrared and Near infrared spectroscopic analysis of mechanically and enzymatically damaged cartilage

Mid-infrared spectroscopic assessment of cartilage degeneration

Near Infrared Spectroscopy Enables Differentiation of Mechanically and Enzymatically Induced Cartilage Injuries

Optical properties of articular cartilage in the near-infrared spectral range are related to its proteoglycan content

Structural, compositional, and functional effects of blunt and sharp cartilage damage on the joint: a 9-month equine groove model study

Tissue optical properties combined with machine learning enables estimation of articular cartilage composition and functional integrity

A new look at the essence of the imaging photoplethysmography

Photoplethysmographic Waveform as a Function of Subject's Age

Ambiguity of mapping the relative phase of blood pulsations

Fast vascular component of cortical spreading depression revealed in rats by blood pulsation imaging

Highly sensitive and noise-protected adaptive optical microphone based on a dynamic photorefractive hologram

Kink Wave Propagation in Thin Isothermal Magnetic Flux Tubes

Asynchronicity of facial blood perfusion in migraine

Blood pulsations imaging of cortical spreading depression in the rat's cortex

Fast mapping of surface defects by using dynamic speckles

Fiber optic sensor for measuring high electric alternating currents

Optical system for monitoring dynamics of blood perfusion

Study of the variability of microcirculation by blood pulsation imaging

Ultrafast linear photogalvanic current in semiconductors

Variability of microcirculation detected by blood pulsation imaging

Variability of microcirculation studied by blood pulsation imaging

2D photoplethysmography system for detection pulsative changes in migrane

Accuracy of the reflectance spectrum recovery in a light-emitting diode-based multispectral imaging system

Amplitude autocorrelation of femtosecond laser pulses using linear photogalvanic effect in sillenite crystals

Detection of small surface defects of nontransparent scattering materials by using dynamic speckles

Detection of surface defects by means of dynamic speckles

Detection pulsative changes in migraine by using 2D photoplethysmography system

Estimation of light penetration depth in turbid media using laser spackles

LED-based multispectral imaging system for online analysis of pharmaceutics tablets

Light penetration depth of a turbid media estimated by cross-correlation of speckle patterns

Light penetration depth of a turbit media estimated by cross-correlation of speckle patterns

Surface defect detection systems based on dynamic speckles

An LED-based multispectral imaging system for tablet quality control

Detection of small surface defects of large metallic sheets by using dynamic speckles

Fast photogalvanic Response of a CdTe crystal

Optical detection of blood pulsation dynamics in rat brain

Photoplethysmographic imaging of high spatial resolution

Reconstruction of reflectance spectra by using fast multispectral imaging system

Recovery of absolute reflectance spectra from compressed data obtained with a fast multispectral imaging system

Remote optical technique of blood perfusion visualization

Simple method for in vivo visualizations of blood pulsations distribution

Visualization of blood perfusion in a human skin

Calibration of multispectral imaging system with light emitting diodes

Distance sensing using dynamic speckles formed by MEMS deflector

Estimating of Ingradients concentration by using multispectral imaging system

Fast noncontact measurements of tablet dye concentration

Measuring tablet porosity using multispectral imaging system