A background modeling method of a video image

A video image and background modeling technology, applied in the field of video image background modeling, can solve problems such as inability to correctly detect foreground objects, incomplete edges of moving objects, incomplete moving objects, etc., to eliminate small connected domains and holes , accurate extraction, and the effect of reducing processing delay

Active Publication Date: 2019-05-21
北京中科晶上超媒体信息技术有限公司
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Problems solved by technology

Taking the background modeling based on the Vibe algorithm as an example, the main problems are: 1) Ghosting problem, this is because the Vibe background modeling uses the first frame as the initial frame to initialize the background model, and there is motion in the first frame When the target is not a real background image, ghost images will appear in the detection results; 2), the static target problem, when the foreground target stays for a long time without moving (for example, a person is waiting for the subway), the moving target is gradually absorbed by the background, However, when the update speed of the Vibe background model is too fast, static or slow moving objects will be absorbed as part of the background,

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  • A background modeling method of a video image
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  • A background modeling method of a video image

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[0041] In order to make the object, technical solution, design method and advantages of the present invention clearer, the present invention will be further described in detail through specific embodiments below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0042] According to one embodiment of the present invention, a background modeling method for video images is provided. In short, the modeling method can be divided into four processes as a whole: 1) initialization process, in which, the The multiple image frames of background modeling are divided into blocks to obtain multiple image blocks; 2) The process of constructing the initial background model is based on the first frame of image to construct the initial background model of pixels; 3) The process of updating the background model is to The received new pixels are m...

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Abstract

The invention provides a background modeling method of a video image. The method comprises the steps of dividing each frame of image into a plurality of image blocks for a plurality of video image frames; Establishing an initial background model according to the first frames of the plurality of video image frames, wherein the initial background model stores a corresponding sample set for each background point; For a subsequent frame of the first frame, constructing a background model for the plurality of image blocks by matching with the initial background model to form a background image. According to the method, the background model can be quickly and accurately constructed.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a background modeling method of video images. Background technique [0002] With the rapid development of smart cities, the security industry market continues to grow, and the security industry will transform and upgrade to scale, automation, and intelligence. It is estimated that by 2020, the total revenue of security companies will reach about 800 billion, with an annual growth rate of more than 10%. . With the acceleration of the industrialization of artificial intelligence, by 2022, the market size of the security industry will reach nearly one trillion yuan. Integrating computer vision technology into the video surveillance system is an inevitable trend in future development. It realizes video stream image processing, background, target analysis, etc., and builds the initial background of the model library to give the video surveillance system intelligence. Backgr...

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Application Information

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IPC IPC(8): G06T7/194G06T7/187
Inventor 刘畅尚源峰高明晋周一青石晶林
Owner 北京中科晶上超媒体信息技术有限公司
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