A moving target detection method based on target block fusion

A moving target and detection method technology, applied in the field of image processing, can solve the problem that the moving target cannot be obtained by differential noise.

Active Publication Date: 2021-05-04
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Problems solved by technology

[0004] The purpose of the present invention is to provide a moving target detection method based on target block fusion, which is used to solve the problems of differential noise and inability to obtain a complete moving target in the prior art method

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  • A moving target detection method based on target block fusion
  • A moving target detection method based on target block fusion
  • A moving target detection method based on target block fusion

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Embodiment Construction

[0020] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0021] A moving target detection method based on target block fusion, such as image 3 shown, including the following steps:

[0022] 1. Collect the video image of the moving target in the video sequence, and process the video image through image registration, image difference and threshold segmentation to obtain a binarized image. The moving target is usually identified by a non-continuous white area in the image, which is called a small target block set in this embodiment, such as figure 1 shown, denoted as b i ∈B (0≤i≤N, N is the number of small target blocks), for these small target blocks, before the fusion of small target blocks, it is first necessary to calculate the area of ​​each small target block, and determine the maximum area of ​​the target block and The minimum areas are denoted as objMaxarea and objMinarea respectively, and thei...

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Abstract

The invention provides a moving target detection method based on target block fusion, the steps of which are: calculating the side length of each target block in a video image, and recording the maximum side length; The distances of all targets in the fused target set, and record the minimum distance, if the minimum distance is less than the maximum side length, add the current target block to the target set; for the remaining targets in the video image The blocks are fused until the fusion of all target blocks is completed, and a complete moving target image is obtained. The invention continuously fuses each target block in the video image, can obtain a complete and continuous moving target, is convenient for tracking and identification, and has a simple and effective method; it can eliminate the influence of differential noise, and can detect a new moving target.

Description

technical field [0001] The invention belongs to the technical field of image processing, in particular to a moving target detection method based on target block fusion. Background technique [0002] For target detection in video, the usual method is to use the difference method, that is, two adjacent frames or multiple frames of images are directly subtracted after registration. After the registration, the relative position of the stationary object remains unchanged, but the position of the moving object changes, so there are traces of the moving object in the difference image, and then the moving target area can be extracted after threshold segmentation. [0003] Although the difference method is widely used in moving objects, the moving objects obtained by using the difference method are discontinuous and incomplete. Although the difference method is an effective method to extract moving targets, the moving target area obtained by it is usually discontinuous, that is, a s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/223
CPCG06T2207/10016G06T7/223
Inventor 陈水忠邓秋平董博宇
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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