A fast moving object detection method in video

Abstract

The invention provides a method for detecting fast-moving objects, which is suitable for use in a video which involves the fast-moving objects. The method comprises the following steps of: (1). foreground detection, i.e., performing background generation, the foreground detection and morphological closing operation so as to filter small-area objects; (2). elimination of non-rapid-moving object frames, i.e., performing interframe foreground accumulation, weighing a cumulative foreground image, and if an area exceeding a certain threshold is greater than the area of the frame of the foreground image by a certain proportion, stopping calculation; (3). detection of the presence of the fast-moving objects, i.e., performing binarization on the cumulative foreground image so as to obtain a binary cumulative foreground image, calculating a circumscribed convex polygon of the binary cumulative foreground image, calculating the tightness of the convex polygon, and if the tightness is smaller than a threshold, and the size and color of each foreground block are similar, then determining the fast-moving objects; and (4). mixed-ray detection of the fast-moving objects, i.e., performing intersection between the circumscribed convex polygon of the binary cumulative foreground image and mixed rays, and if overlapping exists, outputting convex polygon blocks as output targets.

Description

technical field [0001] The invention relates to a video detection method, in particular to a fast moving object detection method in a video. Background technique [0002] In recent years, video surveillance technology has been more and more used in the security field. With the continuous growth of the amount of surveillance data, surveillance personnel need to spend a lot of time manually filtering the data and selecting useful video information from it. Repetitive work often overwhelms them. Surveillance personnel urgently need a product that is easier to work, easier to operate and manage to replace the original system. As a result, intelligent video technology came into being and entered people's lives. [0003] Intelligent video is the introduction of computer vision methods into intelligent monitoring. This technology includes automatic detection of moving or stationary targets, target classification and behavior understanding by video image sequences, the purpose is...

AI Technical Summary

Problems solved by technology

At present, line mixing detection is mostly based on the results of object tracking, but when the object moves rapidly, the target is often lost, resulting in false positives

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