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Method and device for detecting specific area in video data frame

A technology for specific areas and video data, applied in the field of image processing, can solve the problems of high time overhead and inability to detect, and achieve the effect of reducing time overhead

Inactive Publication Date: 2009-01-14
PEKING UNIV FOUNDER GRP CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The above detection method needs to scan the entire image of a video data frame, which takes a lot of time and cannot detect specific areas of multiple consecutive video data frames that require real-time performance.

Method used

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  • Method and device for detecting specific area in video data frame
  • Method and device for detecting specific area in video data frame

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Embodiment Construction

[0019] The inventor found through research that when detecting a specific area of ​​a real-time video data frame, because two adjacent frames are likely to have a strong correlation, it has been determined that the specific area is relevant in the first and second frames. In the case of information, the specific area-related information obtained in the first two frames can be used to estimate the specific area-related information of the third frame, simplifying the detection operation of the third frame, even if it is to improve the accuracy of the detection result and use more complex Algorithms can also reduce time overhead to a certain extent and meet the requirements for real-time performance.

[0020] The solution of the present invention will be described in detail below in conjunction with the accompanying drawings of the specification.

[0021] The present invention relates to the detection of a specific area in a video data frame, including the detection of the real infor...

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Abstract

The invention discloses a method for carrying out inspection to special areas in video data frames, which comprises the steps of: carrying out estimation to the actual boundary information and the actual content information of the special areas of a first reference frame and a second reference frame to obtain the boundary reference information and the content reference information of the special areas of a current frame; carrying out adjustment to the content reference information to obtain the actual content information of the special areas of the current frame; and adjusting the boundary reference information to obtain the actual boundary information of the current frame by utilizing the difference between the content reference information and the actual content information of the current frame when the content reference information of the special area of the current frame satisfies presumed conditions. The method for inspecting the current frame is simplified by the method, thereby reducing time consumption and realizing the inspection to the special areas in a plurality of sequential video data frames with timeliness requirements. The invention discloses equipment for carrying out inspection to the special areas in the video data frames.

Description

Technical field [0001] The present invention relates to image processing technology, in particular to a method and equipment for detecting a specific area in a video data frame. Background technique [0002] The traditional method for detecting a specific area of ​​interest to a user in a video data frame, especially the method for detecting a face area in a video data frame, mainly includes: [0003] First, a full image scan is performed on an input video data frame, and all the pixels in the image are analyzed to determine the face area. [0004] Then, the pixel points in the determined face area are analyzed, the face organs in the face area are located, and the face area information including the position information of the face area and the face organ information is finally obtained. [0005] The above detection method needs to perform a full image scan on a video data frame, which is time-consuming and cannot detect specific areas of multiple consecutive video data frames t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00H04N7/26H04N19/167H04N19/172H04N19/51H04N19/513
Inventor 姚凯郭宗明王祥
Owner PEKING UNIV FOUNDER GRP CO LTD
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