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Subtitle detection method and device as well as background recovery method and device

A subtitle detection and background technology, which is applied in the direction of TV, color TV parts, TV system parts, etc., can solve the problems of not being able to effectively reflect the change of the edge, missing or false detection of the subtitle area, etc. Achieve the effect of reducing missed detection or false detection and improving detection speed

Inactive Publication Date: 2010-09-15
HUAWEI TECH CO LTD +1
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Problems solved by technology

[0005] In the study of the prior art, the inventors found that although the above-mentioned subtitle detection method can be used to detect the subtitle of the video, the above-mentioned subtitle detection method only locates the subtitle area on a single video frame, which cannot effectively reflect the The change of the output edge will cause missed detection or false detection of the subtitle area

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  • Subtitle detection method and device as well as background recovery method and device
  • Subtitle detection method and device as well as background recovery method and device
  • Subtitle detection method and device as well as background recovery method and device

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0034] First introduce the subtitle detection method provided by the embodiment of the present invention, figure 1 The process of Embodiment 1 of the subtitle detection method is described, including:

[0035] 101. Obtain the probability that the pixel area in the video frame belongs to a smooth background;

[0036] The pixel area may include one pixel or multiple pixels;

[0037] The probability that a certain area belongs to a smooth background can be determine...

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Abstract

The invention relates to a video detection technology and discloses subtitle detection method and device as well as background recovery method and device, wherein the subtitle detection method comprises the following steps of: acquiring the probability of a pixel region in a video frame belonging to a smooth background; determining the probability of the pixel region belonging to a still texture by using an interframe correlation coefficient; acquiring the probability of the pixel region belonging to a dynamic texture; and determining whether the pixel region belongs to a roll subtitle regionor not according to the probability belonging to the smooth background, the probability belonging to the still texture and the probability belonging to the dynamic texture of the pixel region. By using the technical scheme provided by the embodiment of the invention, interframe information can be used for detecting subtitles of a video.

Description

technical field [0001] The invention relates to video detection technology, in particular to a subtitle detection method and device, and a background restoration method and device. Background technique [0002] With the rapid development of computer technology, multimedia technology and communication technology, large-capacity storage carriers, high-speed computing processing and fast and effective transmission methods are provided for information. Multimedia data such as images, sounds, and videos has gradually become the main media form in the field of information processing. In particular, video and audio data, because it can record and reproduce spatial and temporal information, gives people an intuitive audio-visual experience, and enables people to obtain information from the outside world in a more natural way, so it quickly becomes an important general information medium and is increasingly popular. people's attention. [0003] In video, text information such as ne...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/445
Inventor 贾国琛严军李甲彭展田永鸿张毅
Owner HUAWEI TECH CO LTD
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