Region-of-interest imaging method and imaging system based on edge detection wake-up circuit

By designing edge detection wake-up circuits and new readout circuits in the region of interest imaging system, the problems of high frame rate target tracking and high data transmission bandwidth in edge applications are solved, and low power consumption and low bandwidth imaging of region of interest are achieved.

CN119767161AActive Publication Date: 2025-04-04JIANGNAN UNIV
6 Cites 0 Cited by

Patent Information

Application Number
CN202411904502.7
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-23
Publication Date
2025-04-04
Estimated Expiration
2044-12-23

AI Technical Summary

Technical Problem

In the edge application, the prior art consumes a large amount of bandwidth due to high frame rate target tracking and data transmission, and the traditional solution relies on ISP for image processing, resulting in higher system power consumption and bandwidth.

Method used

An area of ​​interest imaging system based on edge detection wake-up circuit is designed, and the imaging system with a new readout circuit and an edge detection wake-up circuit is realized. The system supports standard imaging mode, edge detection wake-up mode and ROI imaging mode. Through the coordinated work of edge detection wake-up circuit and readout circuit, it effectively reduces redundant data processing and transmission.

Benefits of technology

It is realized that the difference in gray values ​​of adjacent pixels is obtained through the edge detection wake-up circuit without adding additional storage circuits and complex computing circuits, which significantly reduces system power consumption and transmission bandwidth, and supports high frame rate ROI imaging.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The invention provides a region-of-interest imaging method and system based on an edge detection wake-up circuit, and belongs to the technical field of image sensors. The system supports three working modes and shares a reading circuit: in a standard imaging mode, an image is output at a low frame rate in a full-resolution mode; in the edge detection wake-up mode, generating an edge image by continuously comparing the difference between the gray values of two adjacent columns of pixels; the ROI mode is triggered, when the digital logic determines and updates the ROI region according to the edge image, the pixels in the region are averaged and quantized by the readout circuit, and the system outputs the ROI image at a high frame rate in a resolution reduction manner. An additional storage circuit and an image processor are not needed, and the problems of data storage and interested area imaging are solved on a chip. Image information is compressed through edge detection, high-frame-rate operation is performed only in an ROI imaging mode, and system power consumption and transmission bandwidth are reduced under the condition that pixel characteristics are not changed and an additional storage circuit is not introduced.
Need to check novelty before this filing date? Find Prior Art