Testing method of switching video scenes

A detection method and technology for video scenes, which are applied in TV, electrical components, image communication, etc., can solve the problems of high probability of false alarms and false alarms, overcome neglect, improve the accuracy and accuracy of discrimination, and reduce the probability of false alarms and false alarms. The effect of reporting probability

Inactive Publication Date: 2006-04-19
深圳清研创业投资有限公司
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Problems solved by technology

[0012] In order to overcome the deficiencies of the above-mentioned prior art, a video scene switching detection method is provided, thereby solving the problem that the current video scene switching detection method is easy to cause false positives and high probability of false positives

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  • Testing method of switching video scenes
  • Testing method of switching video scenes
  • Testing method of switching video scenes

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Embodiment Construction

[0033] see figure 1 , the video scene switching detection method of the present invention is based on the principle that the global visual information of the video image in the same group of continuous scenes remains basically unchanged, and the distribution rule shown on the histogram of motion compensation block mismatch pixels is that adjacent frames in the same group of scenes The variation of the histogram of misaligned pixels between motion compensation blocks is much smaller than that at the boundary of scene switching. Its specific implementation includes the following steps:

[0034] S101. Perform histogram statistics on the misaligned pixels of the forward motion compensation block of the current input image I;

[0035] S102. Investigate whether I is the second frame of this group of scenes, if so, skip to the next frame and return to step S101, otherwise execute step S103;

[0036] S103. Calculate the variation characteristic statistic J of the motion compensation...

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Abstract

The method includes steps: first, preparing histogram statistics for mismatched pixels of moving forwards compensation block in current input image; next, calculating statistic of heterotactic characters of histogram for mismatched pixels of moving forwards compensation block between adjacent frames; then, carrying out determining procedure for switching scenes based on the said statistic, and outputting the determined result. Based on difference detection technique of moving compensation, the invention overcomes disadvantages: sensitivity to noise and movement caused by the difference algorithm for pixels located at same positions in adjacent frames; and negligence of space information of video object occurred in conventional decision method of analyzing statistical histogram of pixel intensities. Advantages are: lowering probability of false alarm and probability failed to report in detection of switching video scenes as well as raising precision and correctness of determination.

Description

technical field [0001] The present invention relates to a video scene switching detection method, in particular to a method suitable for video database information retrieval devices and digital video signal processors (such as field / frame rate converters, deinterlacing converters) for improving detection accuracy and A video scene switching detection method with high accuracy, low false alarm rate and false negative rate. Background technique [0002] Scene switching refers to a visual interruption point in a continuous film, which usually comes from the interruption of the camera during film shooting or the interruption point of film editing afterwards. A film can usually be regarded as a collection of many scenes, and the scene is Retrieves the smallest unit of a movie. Video scene switching detection is the most basic processing step in all video image analysis and processing applications. [0003] Due to the importance of scene switching detection, many related algorit...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N17/00
Inventor 张宗平刘鲲彭吉虎田华
Owner 深圳清研创业投资有限公司
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