WORKSHOP PAPER
A 648 x 484-Pixel 4-Tap Hybrid Time-of-Flight Image Sensor with 8 and 12 Phase Demodulation for Long-Range Indoor and Outdoor Operations
Kamel Mars1, Kensuke Sakai1, Yugo Nakatani1, Masashi Hakamata1, Keita Yasutomi1, De Xing Lioe1, Keiichiro Kagawa1, Tomoyuki Akahori2, Tomohiko Kosugi2, Satoshi Aoyama2,1, Shoji Kawahito2,1
1Research Institute of Electronics, Shizuoka University, Hamamatsu, 432-8011, Japan
2Brookman Technology, Inc., Hamamatsu, 430-0936, Japan

Abstract

This paper presents a 100klux ambient light tolerant VGA-resolution hybrid-type ToF image sensor. This sensor is primarily a short-pulse based iToF but utilizes a concept of dToF for locating the received light-pulse as a digital number in multiple time windows using multi-tap pixel outputs and multiple subframes. The new technique offers advantages over the CW-iTOF by reducing in-pixel ambient-light charge acquisition and the resulting small amount of ambient-light shot noise for outdoor operation.
Publisher: IISS (Int. Image Sensors Society)
Year: 2023
Workshop: IISW
URL: https://doi.org/10.60928/kj9i-idyr
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Keywords

Hybrid-Type ToF Image Sensor, Ambient Light Tolerant, High-Resolution Depth Imaging,

References

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