A face detection method and system based on compressed information

A face detection and face detection technology, applied in the field of image processing, can solve the problems of low efficiency and low precision, and achieve the effect of reducing judgment, improving efficiency and improving execution speed.

Active Publication Date: 2019-03-08
深圳市梦网视讯有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the embodiment of the present invention is to propose a face detection method based on compressed information, aiming to solve the problem of low efficiency or The problem of low precision

Method used

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  • A face detection method and system based on compressed information
  • A face detection method and system based on compressed information
  • A face detection method and system based on compressed information

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Embodiment 1

[0046] figure 1 It is a flow chart of a face detection method based on compressed information in a preferred embodiment of the present invention; the method includes:

[0047] Step1: According to the frame category of the current frame, set the face detection processing mode of the current frame.

[0048] If the current frame is an intra-frame prediction frame, then set the face detection processing mode of the current frame as an intra-frame processing mode; if not, set the face detection processing mode of the current frame as an inter-frame processing mode.

[0049] Step2: According to the face detection processing mode of the current frame, the face detection of the current frame is performed.

[0050] Step3: Enter the face detection of subsequent frames.

[0051] Determine whether the next frame of the current frame exists, if the next frame of the current frame is set as the current frame, return to Step1; if not, end.

[0052] figure 2 yes figure 1 Flowchart of th...

Embodiment 2

[0085] Figure 5 It is a structural diagram of a face detection system based on compressed information in a preferred embodiment of the present invention. The system includes:

[0086] The face detection processing mode setting module includes a setting module, an intra-frame processing module, and an inter-frame processing module; the setting module is used to set the current frame face detection processing mode according to the frame category of the current frame; if the current frame is an intra-frame prediction frame, set to enter the intra-frame processing module; if not, set to enter the inter-frame processing module.

[0087] The first face detection module is configured to detect the face of the current frame according to the face detection processing mode of the current frame.

[0088] The next frame setting module is used for face detection in subsequent frames.

[0089] That is to judge whether the next frame of the current frame exists, if the next frame of the ...

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Abstract

The invention provides a face detection method and system based on compressed information. The method of the invention firstly sets different processing modes according to the characteristics of the video scene, improves the efficiency of the algorithm and reduces unnecessary judgments; then uses the compressed information carried by the video stream, sets the size of the skin color detection analysis blocks, can improve the speed of the algorithm execution and ensures the higher accuracy of judgement. The video face retrieval is carried out by using the inter-frame information carried by thecode stream. Compared with not using the temporal correlation of the video, the method only does the longitudinal extension of image processing, which can further improve the implementation efficiencyof the algorithm.

Description

technical field [0001] The invention relates to the technical field of image processing, in particular to a face detection method and system based on compressed information. Background technique [0002] With the rapid development of multimedia technology and computer network technology, video has gradually become one of the mainstream carriers of information dissemination. Whether it is face video retrieval or video beautification, accurate and fast skin color detection technology will enhance its effect of getting twice the result with half the effort. If a unified pixel-based judgment method is adopted, although the judgment will be accurate, since the running speed of the judgment statement in the algorithm execution is much faster than the speed of conventional addition, subtraction, multiplication and division, the large-scale use of judgment sentences will greatly reduce the performance of the algorithm. Execution speed affects the timeliness of the algorithm. This n...

Claims

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Application Information

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IPC IPC(8): G06K9/00
CPCG06V40/161G06V20/40
Inventor 马国强
Owner 深圳市梦网视讯有限公司
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