Anti-flash circuit assembly and image sensor

Abstract

The invention discloses an anti-flash circuit assembly and an image sensor. Wherein, the anti-flash circuit assembly includes a plurality of flash detection units, and the flash detection unit includes: a first photoelectric detection module, which is suitable for real-time monitoring of light signals irradiated thereon, and outputs corresponding electrical signals; a first trigger generation module, Its first input end is coupled to the first photodetection module, its first output end is coupled to the first interface logic module, and the first trigger generation module is adapted to generate a first trigger when the electrical signal exceeds a set threshold Generate a signal to the first interface logic module; and the first interface logic module, its first input end is coupled to the first trigger generation module, its second input end is coupled to the flash detection control unit via the flash detection refresh signal line, and its The first output terminal is coupled to the flash detection control unit via the flash detection trigger signal line, and the first interface logic module is adapted to output a trigger state signal when receiving the first trigger generation signal.

Description

technical field [0001] The 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 original image data output by the front-end image sensor through the relevant algorithms running on the back-end processing chip. [0003] In view of the fact that when the active pixel sensor detects motion, the output image frame contains high redundant information (these redundant information is usually static or slow-changing background information in the field of view), and the transmission of these redundant information Occupies a high output bandw...

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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