Improvement method of ROI definition of capture evidence collection image

Abstract

The present invention discloses an improvement method of the ROI (Region of Interest) definition of a capture evidence collection image. The method is able to improve the brightness, enhance the region contour detail and control the region color through eight steps so as to improve the definition of an image. Compared with the prior art, the improvement method of the ROI definition of a capture evidence collection image solves the key problems that a plurality of ROI image parameters in a vehicle video image in a capture evidence collection system cannot perform synchronization adaptive adjustment when the evidence collection and the display of an intelligent traffic video image are performed, the imaging environment, the compression coding and the bright, the color and the definition caused in the transmission process are declined, and the display effect of the ROI video image is bad, etc.

Description

technical field [0001] The invention relates to the field of image sharpness processing, in particular to a method for improving the ROI sharpness of a captured forensics image. Background technique [0002] In recent years, with the acceleration of urbanization, traffic roads and traffic vehicles are increasing. No matter in developed or developing countries, they are troubled by traffic development to varying degrees, resulting in energy consumption, time wastage, and property loss. With the rapid development of the field of intelligent transportation, it is of great practical significance for the traffic safety management department to quickly and effectively monitor the traffic vehicles that violate the rules and regulations, making the intelligent traffic capture and evidence collection system gradually widely used. [0003] The intelligent traffic capture camera is installed on the side of the road. Due to the constraints of the internal image sensor itself, the inter...

AI Technical Summary

Problems solved by technology

[0005] The ROI image clarity effect in the current snapshot images cannot be fully achieved. The main reasons are as follows: the intelligent capture camera works for a long time, and the dust accumulated on the external glass cover will affect the clarity of the image and the vividness of the color of the picture; insufficient light Or the light is blocked, which will also make the brightness of the image in a specific area poor; during the transmission of the video image, compression coding will also lose the high-frequency details and contours of the image; in addition, the parameters of the panoramic image generated by the capture camera (such as brightness , sharpness, saturation, contrast, etc.) are globally adjusted and controlled, and are generally seldom adjusted after the initial configuration. The parameters of global control cannot simultaneously take into account the display effects of multiple sub-areas in the screen.

In this case, if the ROI image is directly intercepted in the panoramic image for preview display, it will definitely lead to problems such as unsatisfactory resolution of some ROIs.

Images