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Method and device for detecting specific area in video data frame

A specific area and video data technology, applied in the field of image processing, can solve the problems of high time cost and undetectable, and achieve the effect of reducing time cost

Inactive Publication Date: 2011-09-14
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.

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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

[0028] The inventor found through research that when detecting a specific area of ​​a video data frame arriving in real time, since two adjacent frames are likely to have a strong correlation, the first frame and the second frame have determined that the specific area is correlated In the case of information, the specific region-related information obtained in the first two frames can be used to estimate the specific region-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 results using more complex Algorithms can also reduce time overhead to a certain extent and meet the requirements for real-time performance.

[0029] The solution of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0030] The detection of the specific area in the video data frame involved in the present invention includes the detection of the real bounda...

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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, therebyreducing 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 carryingout inspection to the special areas in the video data frames.

Description

technical field [0001] The 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] Firstly, scan the entire image of an input video data frame, analyze all the pixels in the image, and determine the face area. [0004] Then, analyze the pixel points in the determined face area, locate the face organs in the face area, and finally obtain the face area information including the position information of the face area and the information of the face organs. [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 perf...

Claims

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Application Information

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Patent Type & Authority Patents(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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