A Moving Target Detection Circuit Based on Memristor and CMOS

Abstract

The invention discloses a moving target detection circuit based on memristor and CMOS, comprising: a sequentially connected adjacent frame difference comparison module and a signal processing module; the adjacent frame difference comparison module receives external video data for realizing phase comparison The difference comparison of the upper 4-digit value of each pixel point between two adjacent frames of images; the signal processing module is used to perform current and voltage signal conversion, weighted summation, and threshold comparison in sequence on the difference comparison results output by the difference comparison module of adjacent frames The binary output corresponding to each pixel is obtained, so as to generate a black and white image used to describe the outline of the moving target. The invention compares the signals from the image sensor through the mixed structure array of memristor and CMOS, and has the advantages of simple structure, small size, strong scalability and low power consumption, and can complete the contour of the moving target on the hardware circuit Detection can share the data processing pressure of the computer and lay the foundation for the realization of higher-order image processing tasks.

Description

technical field [0001] The invention belongs to the field of image processing, and more specifically relates to a moving target detection circuit based on memristor and CMOS. Background technique [0002] The moving target detection technology is a technology to detect the moving target according to the change of the physical position of the object relative to the surrounding environment. With the development of image processing technology, video-based moving target detection technology has been widely used in the fields of machine vision, intelligent monitoring, traffic monitoring, biological tissue motion analysis in medicine, and personnel tracking. Common methods for moving object detection based on video include background difference method, frame difference method and optical flow method, etc. These methods can be used alone or in combination to better identify moving objects. These algorithms mainly process the video data received by the computer through software pro...

AI Technical Summary

Problems solved by technology

The image storage array part of the circuit uses a pure memristive cross-array. This structure has a leakage current problem during read and write operations, so the data of different pixels cannot be read and written in parallel.

Affected by the leakage current of the pure memristive cross array, the moving target detection circuit can only operate pixel by pixel and cannot realize parallel operation of each pixel, resulting in slow data processing speed

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