Yu Feng

I am a Ph.D. candidate (expected graduation: Sep. 2026) at Shizuoka University in Hamamatsu, Japan, supervised by Prof. Keiichiro Kagawa. My research focuses on biomedical imaging and high dynamic range (HDR) imaging using multi-tap CMOS image sensors.

📸 Research Interests

CMOS Image Sensors: Sensor design and characterization, imaging system integration, image signal processing
Biomedical Imaging: Spatial frequency domain imaging (SFDI), non-line-of-sight (NLOS) imaging, motion artifact mitigation, ambient light bias mitigation
HDR Imaging: Charge-splitting, LED flicker mitigation (LFM), motion artifact mitigation

🚀 News

[Jun. 2025] Our confernce paper on ambient-light-robust SFDI was accepted to ECOB 2025.
[Jun. 2025] Our confernce paper on an HDR imaging system for biomedical applications was accepted to IISW 2025.

Publications

IEEE sensors

Programmable Dynamic Range HDR Imaging with LED-Flicker and Motion Artifact Mitigation Using a Four-Tap CMOS Image Sensor

Yu Feng, Keiichiro Kagawa, Kamel Mars, Keita Yasutomi, and Shoji Kawahito

IEEE Sensors Journal, vol. 25, no. 10, pp. 18302-18311 (March 2025).

HDR

JBO

Motion-resistant three-wavelength spatial frequency domain imaging system with ambient light suppression using an 8-tap CMOS image sensor

Yu Feng, Chen Cao, Yuto Shimada, Keita Yasutomi, Shoji Kawahito, Gordon T. Kennedy, Anthony J. Durkin, and Keiichiro Kagawa

Journal of Biomedical Optics, Vol. 29, Issue 1, 016006 (January 2024).

SFDI

JSNA

Spatial frequency domain imaging system using a scanning micro-mirror

Kenta Nakazawa, Yu Feng, Koki Masuda, Keita Yasutomi, Shoji Kawahito, Futoshi Iwata, and Keiichiro Kagawa

Sensors and Actuators A Physical, Vol. 387, 1 June 2025, 116421 (March 2025).

SFDI MEMS

Sensors

Resolving Multi-Path Interference in Compressive Time-of-Flight Depth Imaging with a Multi-Tap Macro-Pixel Computational CMOS Image Sensor

Masaya Horio, Yu Feng, Tomoya Kokado, Taishi Takasawa, Keita Yasutomi, Shoji Kawahito, Takashi Komuro, Hajime Nagahara, and Keiichiro Kagawa

Sensors 2022, 22, 2442 (March, 2022).

ToF

Presentations

🌏 International Conferences (Oral)

Room-Light Operation of a Three-Wavelength Spatial Frequency Domain Imaging System Using Pulsed Illumination and an 8-Tap CMOS Image Sensor
Yu Feng et al., European Conference on Biomedical Optics 2025, Munich, Germany (June 2025)
Programmable Dynamic Range Extension up to 110 dB Based on Charge-Splitting Method with 4-Tap CMOS Image Sensor
Yu Feng et al., 2025 International Image Sensor Workshop, Hyogo, Japan (June 2025)
Multi-tap CMOS Image Sensor with Programmable Functional Exposure: Application to Structured Light Based Quantitative Tissue Imaging
Yu Feng et al., The Optica Imaging Congress 2024, Toulouse, France (July 2024)
Demonstration of motion-resistant three-wavelength spatial frequency domain imaging system with ambient light suppression using an 8-tap CMOS image sensor
Yu Feng et al., Paper 12376-21, SPIE Photonics West BiOS 2023, San Francisco, United States (January 2023)

🗾 Japanese Conferences

4タップCMOSイメージセンサによるプログラム露光を用いた最大118.3dB広ダイナミックレンジイメージング
馮宇ら、映像情報メディア学会情報センシング研究会 (IST)、2024年09月
8タップCMOSイメージセンサを用いた動きと環境光に対する耐性をもつ3波長SFDIシステム
馮宇ら、映像情報メディア学会情報センシング研究会 (IST)、招待講演、2023年11月
8タップCMOSイメージセンサを用いた環境光・動きに強い3波長空間周波数領域イメージングシステム
馮宇ら、第28回医用近赤外線分光法研究会、2023年10月（ポスター）
700×540画素8タップCMOSイメージセンサを用いた3波長空間周波数領域イメージングシステム
馮宇ら、一般社団法人レーザー学会学術講演会第43回年次大会、2023年01月
Demonstration of three-wavelength spatial frequency domain imaging with suppression of motion artifact and ambient light using an 8-tap CMOS image sensor
馮宇ら、第28回画像センシングシンポジウム、2022年06月

Education