Method and system for feedback-type object detection and tracing of video object

A technology of object detection and video object, applied in the field of image processing, can solve the problems of wrong detection results, tracking failure, inseparability, etc.

Inactive Publication Date: 2009-09-09
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] When performing object detection, when the moving object is large in scale or moving slowly, because the edge part of the moving object is similar to the background, it may not be possible to clearly separate the outline of the edge part from the background, causing false detection results.

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  • Method and system for feedback-type object detection and tracing of video object
  • Method and system for feedback-type object detection and tracing of video object
  • Method and system for feedback-type object detection and tracing of video object

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Embodiment Construction

[0031] In order to solve the problem of unclear outlines of foreground moving objects in the current frame due to holes, the embodiment of the present invention provides a feedback-type object detection and tracking method for video objects. like figure 1 As shown, the method includes the following steps:

[0032] Determining a reference frame of the video image, and dividing the foreground moving object of the reference frame into at least two reference areas;

[0033] Detect the current frame to obtain the foreground moving object of the current frame;

[0034] tracking the reference area, and obtaining at least one candidate area in the current frame;

[0035] Obtain the area overlap rate between the candidate area and the foreground moving object in the current frame;

[0036] The foreground moving object is updated according to the area overlapping ratio, and the tracking object of the next frame is determined.

[0037] The method performs object detection on each fra...

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Abstract

The invention discloses a method and a system for the feedback-type object detection and tracing of a video object, relates to the field of image processing and solves the problems that a hole occurs inside a foreground moving object in a current frame and that the prior proposal fails to obtain higher-quality boundaries. The method comprises the following steps: offering object detection to the video image newly acquired by each frame to extract the foreground moving object of the current frame; dividing blocks according to a foreground moving object of a video image of the former frame (a reference frame) to obtain a reference block; using a mean shift algorithm to trace the reference frame to calculate a candidate block of the foreground moving object in the current frame; and then determining the final foreground moving object according to a rate of superposition area of a tracing result and a detection result and feeding back a result to update a ground model.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and system for feedback detection and tracking of video objects. Background technique [0002] In image processing, when analyzing a moving object of interest in a video stream, it is necessary to detect and track the moving object. In the prior art, the detection and tracking of the moving object are two independent processes, the object detection is performed on the image first, and then the detection result is tracked. [0003] The most common method for object detection is background subtraction. The background elimination method first uses the first few frames of the video stream to establish a background model, and then divides each subsequent frame of video images into foreground moving objects and background according to the background model. Compare the pixel area of ​​each subsequent frame of video image with the corresponding pixel area of ​​the background mo...

Claims

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Application Information

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IPC IPC(8): H04N7/26H04N5/262G06T7/20
Inventor 罗青山孔晓东曾贵华赵光耀
Owner HUAWEI TECH CO LTD
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