Image stabilizing control method and system for video image and video analytical system

Abstract

The invention is suitable for the technical field of monitoring, and provides an image stabilizing control method and an image stabilizing control system for a video image and a video analytical system. The method comprises the following steps of: acquiring stable image subblocks according to angular point information in the image subblocks for pre-dividing an original monitoring image; calculating the motion vector of a video image frame of the original monitoring image relative to a background image according to the selected image subblocks; rectifying the original monitoring image according to the calculated motion vector of the video image frame of the original monitoring image relative to the background image to obtain a rectifying image; and matching the original monitoring image and the rectifying image with the background image respectively to acquire an image for background modeling. By the method, the defect of the blindness of selecting the image subblocks in the conventional image stabilizing algorithm is overcome, and the accuracy of estimation is improved.

Description

technical field [0001] The invention belongs to the technical field of monitoring, and in particular relates to a video image stabilization control method, system and video analysis system. Background technique [0002] A video surveillance system generally uses a fixed camera to continuously shoot a certain scene, then processes and analyzes the collected video stream, detects moving objects in it, and performs subsequent processing such as classification, tracking, and identification of moving objects. Then judge the behavior of the target, detect whether the target has crossed the boundary, crossed the line, left objects or theft, etc. When such events are detected, an alarm signal will be sent to remind the monitoring personnel to pay attention or take corresponding measures. Video surveillance technology is mainly composed of two parts: moving object detection and moving object tracking. Moving object detection plays an important role in subsequent moving object trackin...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the embodiments of the present invention is to provide a video image stabilization control method, which aims to solve the problem that the current frame obtained in the prior art has a certain position deviation relative to the background image, which reduces the detection accuracy, and the current image stabilization compensation The method is relatively blind, and there are flaws and unreasonable problems

Images