BIMODAL BIONIC VISION SENSOR

WIPO Patent Application WO/2021/128533

A1

Provided is a bimodal bionic vision sensor. The effect of excitatory rod cells is simulated by means of a first-type current mode active pixel sensor circuit to realize the effect of perceiving light intensity gradient information in a target light signal, thereby improving the dynamic range of an image from a bionic vision sensor and improving the photographic speed. Moreover, a first-type control switch is introduced to each non-target first-type photosensitive device, so that the obtained light intensity gradient information can be controlled, and the adjustment of the dynamic range of the image from the bionic vision sensor is realized, thereby realizing the adjustment of the photographic speed and realizing the effect of being able to perform reconfiguration. A voltage mode active pixel sensor simulates the effect of cone cells, so that a target voltage signal characterizing the light intensity information in a target light signal can be output, thereby realizing the effect of perceiving the light intensity information in the target light signal, and the obtained target voltage signal characterizes the light intensity information with higher precision, such that the quality of the obtained image can be ensured.

SHI LUPING (CN)
YANG ZHEYU (CN)
ZHAO RONG (CN)
PEI JING (CN)
XU HAIZHENG (CN)

PCT/CN2020/073523

July 01, 2021

January 21, 2020

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UNIV TSINGHUA (CN)

H04N5/369; H04N5/3745; H04N9/04

WO2019221580A1

2019-11-21

CN108200362A	2018-06-22
CN102984471A	2013-03-20
CN105163048A	2015-12-16
CN108566524A	2018-09-21

LINDA LIU & PARTNERS (CN)

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