216 fps 672 × 512像素3 μm具有1帧深度采集的间接飞行时间图像传感器用于运动伪影抑制

2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits) Pub Date : 2023-06-11 DOI:10.23919/VLSITechnologyandCir57934.2023.10185332

Chihiro Okada, S. Yokogawa, Y. Yorikado, K. Honda, Naoki Okuno, Ryohei Ikeno, Makoto Yamakoshi, Hiroshi Ito, Shohei Yoshitsune, Masatsugu Desaki, Shota Hida, Atsushi Nose, H. Wakabayashi, F. Koga

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引用次数: 0

摘要

开发了一种216 fps、672 × 512像素、3 μm间接飞行时间图像传感器，具有1帧深度采集，用于运动伪影抑制。为了抑制运动伪影，我们采用了浮动扩散共享电路，垂直栅极技术作为传输栅极，IQ马赛克像素编码与演示处理。因此，与传统的4帧传感器相比，获得了无运动伪影的深度图，帧速率提高3.5倍，功耗降低50%，读出噪声降低71%。

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216 fps 672 × 512 pixel 3 μm Indirect Time-of-Flight Image Sensor with 1-Frame Depth Acquisition for Motion Artifact Suppression

A 216 fps, 672 × 512 pixel, 3 μm indirect time-of-flight image sensor with 1-frame depth acquisition for motion artifact suppression was developed for versatile applications. To suppress motion artifacts, we employed a floating diffusion sharing circuit, vertical gate technology for the transfer gate, and IQ mosaic pixel coding with demosaic processing. Consequently, a motion artifact-free depth map was obtained, with a 3.5 times faster frame rate, 50% lower power, and 71% lower readout noise compared to a conventional 4-frame sensor.

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2023 IEEE Symposium on VLSI Technology and Circuits (VLSI Technology and Circuits)

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