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1 Opto-physiological modelling towards new configuations of contact and non-contact optoelectronic sensing solutions.
Sijung Hu
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Sijung Hu
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Hu, S. Opto-physiological monitoring. Encyclopedia. Available online: https://encyclopedia.pub/entry/2609 (accessed on 26 April 2024).
Hu S. Opto-physiological monitoring. Encyclopedia. Available at: https://encyclopedia.pub/entry/2609. Accessed April 26, 2024.
Hu, Sijung. "Opto-physiological monitoring" Encyclopedia, https://encyclopedia.pub/entry/2609 (accessed April 26, 2024).
Hu, S. (2020, October 15). Opto-physiological monitoring. In Encyclopedia. https://encyclopedia.pub/entry/2609
Hu, Sijung. "Opto-physiological monitoring." Encyclopedia. Web. 15 October, 2020.
Opto-physiological monitoring
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Opto-physiological monitoring (OPM) considers biological tissue  as a set of optical media, study how light interacts within biological tissue, where the optical properties of the latter reflect the mechanical, physical and biochemical functions of the living organism. OPM includes optoelectronic sensor based contact monitoring and image sensor based remote monitoring.

Opto-physiological monitoring multi-wavelength illumination mutliplexed driver demultiplexed signals pulsatile waveform contact optoelectronic sensor non-contact imaging photoplethysmography

Dr.  Sijung Hu is the Leader of Photonics Engineering Research Group, and Reader in Biomedical Engineering, Loughborough University, UK. After being awarded a PhD at Loughborough University in 2000, Sijung was invited to join Kalibrant Ltd as a Senior Scientist for R&D in vitro diagnostics instrumentation. Sijung joined the Wolfson School of Mechanical, Electrical and Manufacturing Engineering, Loughborough University as a research fellow in 2002 and sensor research fellow in 2006. Sijung has contributed in Photonics based Biomedical Engineering with creation of Opto-physiological monitoring and assessment that was recognized as a milestone in worldwide pulse oximetry research in 2008 by Drexel University, USA (http://www.pages.drexel.edu/~kmg462/currentresearch.html), and non-contact vital signs monitoring/imaging photoplethysmography (iPPG) was included in  NASA’s Future of Emergency Care (NASA/TM-2011-216145), and an innovative optoelectronic sensor (Carelight) was highlighted in Atlas of Science 2015 (https://atlasofscience.org/new-generation-opto-electronic-patch-sensor-oeps-carelight/) with the potential for commercialization worldwide. Sijung has successfully supervised 23 completed PhDs (2002–2019) with very satisfactory outcomes of original research reflecting in major leading journal publications (Google citations >6000). Five completed senior scholars’ supervision for four biomedical engineering projects; eight on-going PhDs supervision with the research topics covering the range of from in vivo physiological monitoring to in vitro diagnosis POC device manufacturing and dynamic breathy pressure sensing.

OPM has a clear scientific approach with the interest in the photonics and dynamics are govern the interaction of light and biological tissues, as well as the practical engineering implementation required to translate laboratory results into commercial products. The research is mainly specialized in Photonics based Biomedical Engineering, i.e., photoplethysmography, tissue optics engineering simulation, light scattering etc., and has the generic expertise on optics/tissue Optics, (µ)electronics , software design  and systems integration  at component and systems levels, combined with a team approach to problem solving, allows for a clear and rapid progression from fundamental research ideas to industrial prototypes. Research activities include areas of sport technologies, human physiology, computing science, and mechanical and systems engineering. The OPM has been collaborating in biomedical engineering research projects and programs with a number of national and international research groups and institutions. It has attained international recognition for its research in opto-physiological modelling to describe human physiological phenomena by effective capture of light trans-illuminating tissue, and non-contact vital signs monitoring, as referenced) [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28].

 

References

  1. “A Study on the Effect of Contact Pressure during Physical Activity on Photoplethysmographic Heart Rate Measurements”, Scardulla, F., D’Acquisto, L., Colombarini, R., Hu, S., Pasta, S., Bellavia, D., Sensors (Basel). 2020 Sep 5;20(18): E5052. doi: 10.3390/s20185052.
  2. “Illumination Adaptation in a Multi-Wavelength Opto-Electronic Patch Sensor”, Yan, L., Yu, Y., Hu, S., Mulvaney, D., Blanos, P., Alharbi, S., M, Hayes., Sensors (Basel), 2020 Aug 21;20(17):E4734. doi: 10.3390/s20174734.
  3. “An Optimization Study of Estimating Blood Pressure Models Based on Pulse Arrival Time for Continuous Monitoring”, Shao, J., Shi, P., Hu, S., Liu, Y., Yu, H., J Healthc Eng. 2020, doi: 10.1155/2020/1078251.
  4. “Oxygen Saturation Measurements from Green and Orange Illuminations of Multi-Wavelength Optoelectronic Patch Sensors”, Alharbi, S., Hu, S*., Mulvaney, D., Barrett, L., Yan, L., Blanos, P., Elsahar, Y., Adema, S., Sensors 2018, 19(1), 118; doi.org/10.3390/s19010118.
  5. “Frame Registration for Motion Compensation in Imaging Photoplethysmography”, Iakovlev, D., Hu, S*, Dwyer, V., Sensors 2018, 18(12), 4340; doi.org/10.3390/s18124340.
  6. “Smart Garment Fabrics to Enable Non-contact Opto-Physiological Monitoring”, Iakovlev, D., Hu, S*, Hassan, H., Dwyer, V., Ashayer-Soltani, R., Hunt, C., Shen, J., Biosensors 2018, 8(2), 33; doi:10.3390/bios8020033.
  7. “A Study of the Dynamic Relation between Physiological Changes and Spontaneous Expressions”, Yang, F., Hu, S.,* Li, B., Hassan, H., Dwyer, V. M., Wei, D., Shi, P., Scientific Reports, Nature 7: 7081 (2017), DOI:10.1038/s41598-017-07122-x.
  8. “Assessing blood vessel perfusion and vital signs through retinal imaging photoplethysmography”, Hassan, H., Dwyer, V., Jaidka, S., Hu, S*., Biomed Opt Exp, 2018 Apr 26;9(5):2351-2364. doi: 10.1364/BOE.9.002351.
  9. “Recovery of heart rate variability after treadmill exercise analyzed by lagged Poincaré plot and spectral characteristics”, Shi, P., Hu, S., Yu, H., Med Biol Eng Comput., (2017) DOI 10.1007/s11517-017-1682-2
  10. “A Multi-wavelength Opto-Electronic Patch Sensor to Effectively Detect Physiological Changes Against Skin Pigments”, Yan, L., Hu, S.*, Alzahrani, A., Alharbi, S., Blanos, P., Biosensors, 7(2), 22, (2017), doi:10.3390/bios7020022.
  11. “A Multi-Channel Opto-Electronic Sensor to Accurately Monitor Heart Rate against Motion Artefact during Exercise”, Alzahrani, A., Hu, S.*, Azorin-Peris, V., Barrett, L., Esliger, D., Hayes, M., Akbare, S., Achart, J., Kuoch, S., Sensors, 15, 25681-25702 (2015); doi:10.3390/s151025681.
  12. “The response of the autonomic nervous system to passive lower limb movement and gender differences”, Shi, P., Hu, S., Yu, H., Med Biol Eng Comput, 2015, DOI 10.1007/s11517-015-1378-4.
  13. “A Comparison Study of Physiological Monitoring with a Wearable Opto-Electronic Patch Sensor (OEPS) for Motion Reduction”, Alzahrani, A., Hu, S*., Azorin-Peris, V., Biosensors, 5, 288-307 (2015); doi:10.3390/bios5020288.
  14. “Influence of computer work under time pressure on cardiac activity”, Shi, P., Hu, S., Yu, H., Comput Biolog Med, 58, 40–45 (2015).
  15. “Opto-physiological modeling applied to photoplethysmographic cardiovascular assessment”, Hu, S.*, Azorin-Peris, V., Zheng, J., Invited Review Paper, J Healthcare Eng. 4 (4), 505-528 (2013).
  16. “Non-contact imaging photoplethysmography to effectively access pulse rate variability”, Sun, Y., Hu, S.*, Azorin-Peris, V., Kalawsky, R., Greenwald, S., J Biomed Optic 18(6), 061205 (2013).
  17. “The use of ambient light in remote photoplethysmographic systems: a comparison between a high performance camera and a low cost webcam”, Sun, Y., Papin. C., Azorin-Peris, V., Kalawsky, R., Greenwald, S., Hu, S.*, J Biomed Optic., 17(3), 037005 (March 2012).
  18. “BioThreads: A Novel VLIW-Based Chip Multiprocessor for Accelerating Biomedical Image Processing Applications”, Stevens, D.; Chouliaras, V.; Azorin-Peris, V.; Zheng, J.; Echiadis, A.; Hu, S.*, Biomed Circ Sys, IEEE Trans., 6(3):257-268 (2012).
  19. “Motion-compensated noncontact imaging photoplethysmography to monitor cardiorespiratory status during exercise”, Sun, Y., Hu, S.*, Azorin-Peris, V., Greenwald, S., Chambers, J., Zhu, Y., J Biomed Optic 16(7), 077010 (July 2011).
  20. “Non-contact Reflection Photoplethysmography towards Effective Human Physiological Monitoring”, Shi, P., Azorin Peris, V., Echiadis, A., Zheng, J., Zhu, Y., Cheang, P. Y. S., Hu, S.*, J Med. Biol. Eng. Vol.30 Iss 30 (2010): 161-167.
  21. “Insight into the dicrotic notch in photoplethysmographic pulses from the finger tip of young adults”, Shi, P., Hu, S.*, Zhu, Y., Zheng, J., Qiu, Y., Cheang, P. Y. S., J Med Eng Tech, Vol. 31, Iss 8 (2009), 628 - 633.
  22. “Analysis of pulse rate variability derived from photoplethysmography with the combination of lagged Poincaré plots and spectral characteristics”, Shi, P., Zhu Y., Allen, J., Hu, S.*, Med Eng. Phys. 31 (2009) 866–871,
  23. ''Study on Blood Pulse Photoplethysmography Signal on Toe Under Different Body Posture and Lower Limb Height'', Xin, S., Hou, W., Qian, J., Hu, S., Crabtree, V.P., Smith, P.R., J University of Shanghai for Science and Technology, 30(5), November 2008, pp 173-180, ISBN 1609 0985.
  24. “Effect of postural changes on lower limb blood volume, detected with non-invasive photoplethysmography”, Zheng, J., Hu, S.*, Xin, S., Crabtree, V., J Med Eng Tech, Vol. 32, Iss 5 (2008), 358 - 364.
  25. “A Preliminary Attempt to Understand Compatibility of Photoplethysmographic Pulse Rate Variability with Electrocardiogramic Heart Rate Variability", Shi, P., Hu, S*., et al J Med. Biolog. Eng., Vol.28, Iss 4 (2008): 173-180.
  26. “Non-invasive measurement of peripheral venous oxygen saturation using a new venous oximetry method: evaluation during bypass in heart surgery”, Echiadis, A. S., Crabtree, V. P., Bence, J., Hadjinikolaou, L., Alexiou, C., Spyt, T. J., Hu, S., , Physiol. Meas. Vol.28 (2007) 897–911.
  27. “Investigation of Blood Pulse PPG Signal Regulation on Toe Effect of Body Posture and Lower Limb Height”, Xin, S., Hu, S.*, Crabtree, V. P., Zheng, J., Azorin-Peris, V., Echiadis, A., and Smith, P. R., J Biomedicine and Biotechnology, Vol. 8 (2007) No. 6. 916-920.
  28. “A Monte Carlo Platform for the Optical Modelling of Pulse Oximetry”, Azorin-Peris, V., Hu, S.*, Smith, P. R, Applied Physics Letters, SPIE, Vol.6446 (2007), pp.64460T.
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