An anti-flash circuit assembly and an image sensor

Abstract

The invention discloses an anti-flash circuit assembly and an image sensor. Wherein the anti-flash circuit assembly further comprises a plurality of flash detection units, each flash detection unit comprises a first photoelectric detection module, a first triggering generation module and a first port logic module, and the first photoelectric detection module is suitable for monitoring light signals irradiated on the first photoelectric detection modules in real time and outputting corresponding electric signals; the first input end of the first trigger generation module is coupled to the first photoelectric detection module, the first output end of the first trigger generation module is coupled to the first interface logic module, and the first trigger generation module is suitable for generating a first trigger generation signal to the first interface logic module when the electric signal exceeds a set threshold value; the first input end of the first interface logic module is coupled to the first trigger generation module; wherein a second input end of the first interface logic module is coupled with the flash detection control unit through a flash detection refresh signal line,a first output end of the first interface logic module is coupled with the flash detection control unit through a flash detection trigger signal line, and the first interface logic module is suitablefor outputting a trigger state signal when receiving a first trigger generation signal.

Description

Technical field [0001] The present invention relates to the technical field of image acquisition, in particular to an image sensor for motion detection with an anti-flash circuit assembly. Background technique [0002] Motion detection, especially high-speed motion detection, has important and extensive applications in many fields such as automation control, industrial monitoring, scientific research, and military industry. In the current vision processing system, motion detection is mainly realized by analyzing and calculating the raw image data output by the front-end image sensor through related algorithms running on the back-end processing chip. [0003] In view of the active pixel sensor in the motion detection, the output image frame contains high redundant information (the redundant information is usually static or slowly changing background information in the field of view), and the transmission of these redundant information Occupies a very high output bandwidth, and thei...

AI Technical Summary

Problems solved by technology

In these cases, the sensor will output the information of the entire pixel unit, which is all useless but occupies a high output bandwidth

What's more serious is that before these useless outputs are all output, the sensor cannot respond to the subsequent motion information in the field of view, thus losing the advantages of dynamic vision image sensors

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