Video image motion target extracting method based on pattern detection and color segmentation

A moving target and video image technology, applied in the field of video image moving target extraction, can solve the problem of moving target blending into the background, etc., and achieve the effect of solving the problem of moving target blending into the background, accurate positioning, and robust illumination changes

Active Publication Date: 2013-02-06
WUHAN UNIV
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Problems solved by technology

[0006] The present invention mainly solves the technical problems existing in the prior art; it provides a method that not only maintains the advantages of accurate texture detection and positioning, and is robust to illumina

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  • Video image motion target extracting method based on pattern detection and color segmentation
  • Video image motion target extracting method based on pattern detection and color segmentation
  • Video image motion target extracting method based on pattern detection and color segmentation

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Embodiment

[0038] The present invention comprehensively considers the advantages and disadvantages of the moving target detection method and the color segmentation technology of the LBP texture feature of the video image, and proposes a macroblock mapping and overlapping detection technology for the moving target so that the two can be seamlessly combined, and the advantages and disadvantages are complemented. It has the advantages of accurate texture detection and positioning, and robustness to illumination changes, and effectively solves the problem of moving objects blending into the background in the case of slow motion or in-situ motion.

[0039] The following will combine figure 1 The schematic flow chart further describes in detail the method for extracting moving objects in video images based on texture detection and color segmentation of the present invention. Contains the following steps:

[0040] Step 1: preprocessing the input video signal, since the image sampling space pro...

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Abstract

The invention provides a video image motion target extracting method based on pattern detection and color segmentation. The method comprises the steps of: firstly preprocessing video signals to obtain an RGB (red, green and blue) image, performing k-means image clustering segmentation to the RGB image, and recording color classification number of each pixel point; secondly, performing LBP (local binary pattern) detection according to the gray value of the current frame and the background frame, calculating to obtain the pixel points representing a motion target, and creating a mapping relation between the pixel points and macro blocks to obtain the macro block level motion target; then, according to the color classification number and pixels of the motion target, performing overlapping detection to obtain the initial motion target; and at last, merging the motion targets obtained from the LBP detection and the color segmentation, and filtering to obtain the final motion target. The method has the advantages that the advantages of accurate location in the pattern detection and robustness of illumination variation are kept; and the problem that the motion target is fused in a background by slow movement or in-situ movement can be effectively solved.

Description

technical field [0001] The invention relates to a video image moving target extraction method, in particular to a video image moving target extraction method based on texture detection and color segmentation. Background technique [0002] Moving target extraction is widely used in many fields such as intelligent video surveillance, image compression, computer graphics, human-computer interaction, virtual reality, etc. It is an important research topic in the field of computer vision. Moving target extraction is at the bottom of the entire video processing system, and is the basis for various subsequent advanced processing such as target tracking, target classification, behavior recognition, scene understanding, etc., and has become one of the focuses of the next generation of efficient and intelligent video image processing . [0003] At present, the commonly used moving target extraction methods can be divided into three categories: optical flow method, frame difference me...

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Application Information

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IPC IPC(8): G06T7/20
Inventor 胡瑞敏侯志强王中元刘文杰胡金晖钟睿
Owner WUHAN UNIV
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