WORKSHOP PAPER
An 8.7Mpixel 240fps CMOS Image Sensor with 4 × 4 Pixel-Block Local Adaptation of Resolution, Frame Rate, and Exposure Time for Scene Adaptive Imaging
Kohei Tomioka1, Kodai Kikuchi1, Akira Honji1, Takenobu Usui1, Kazuya Kitamura1, Shoji Kawahito2
1NHK Science & Technology Research Laboratories, Tokyo, Japan
2Research Institute of Electronics, Shizuoka University, Hamamatsu, Japan

Abstract

An 8.7Mpixel CMOS image sensor with local adaptation of imaging parameters for each 4 × 4 pixel block is presented. The 3,904 × 2,224 pixel array is divided into 976 × 556 blocks. The resolution, frame rate, and exposure time are adjustable per block using shared floating diffusions and pass transistors of charge transfer pulse for 2 × 2 photodiodes, enhancing image quality while suppressing data rates. The device achieved 4K resolution, 240 fps, and 88 dB dynamic range.
Year: 2025
Workshop: IISW
URL: https://doi.org/10.60928/hnh7-d0zu
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Keywords

CMOS, image sensor, resolution, frame rate, exposure time, scene adaptive imaging,

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