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Method, device and equipment for determining video key data
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A key data and determination method technology, applied in the field of video processing, can solve problems such as unreasonable key data determination methods, achieve reasonable acquisition, improve work efficiency, and reduce work intensity
Active Publication Date: 2018-08-03
CHINA MOBILE COMM GRP CO LTD
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[0005] The embodiment of the present invention provides a video key data determination method, device and equipment to solve the problem in the prior art that the key data determination method of video files is unreasonable
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Embodiment 1
[0029] In Embodiment 1 of the present invention, a method for determining video key data is provided, such as figure 2 As shown, it specifically includes the following steps:
[0030] S201. Decode the video to be processed, and extract an I frame of each video frame.
[0031] Further, in the prior art, when decoding the encoded and compressed video, the key frames of each video frame in the video can be extracted, that is, the I frame, and the I frame can be understood as a complete reservation of a frame of picture, which can Provides complete image information for the frame image.
[0032] S202. Perform face recognition on each extracted I frame by using a face recognition algorithm.
[0033] In this step, a face recognition algorithm in the prior art may be used, for example, a face detection and recognition algorithm is used to perform face recognition on each extracted I frame.
[0034] S203. According to the result of face recognition, determine the face that appears...
Embodiment 2
[0049] In Embodiment 2 of the present invention, a method for determining video key data is provided, such as Figure 4 As shown, it specifically includes the following steps:
[0050] S401. Using a face recognition algorithm, perform face recognition on each video frame of the video to be processed.
[0051] In this step, if before the video to be processed is processed, the video to be processed is decoded, and the I frame of each video frame is extracted, this step is: adopt a face recognition algorithm to perform face recognition on each extracted I frame.
[0052] S402. According to the result of face recognition, determine the face that appears most frequently in each video frame as the key face.
[0053]Further, this step can be specifically implemented as: for each recognized human face, compare the human face with the recognized human faces; when the human face matches any recognized human face, compare the The number of occurrences of the identified human face is i...
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Abstract
Embodiments of the present invention provide a method, device and equipment for determining key video data, which uses a face recognition algorithm to perform face recognition on each video frame of the video to be processed; according to the result of face recognition, the frequency of occurrence in each video frame The most faces are determined as the key faces; from each video frame where the key faces appear, the video frames that meet the preset rules are determined, and the video frames that meet the preset rules are determined as the key data of the video to be processed. Compared with the prior art, which obtains key data from massive video data manually, the work efficiency is improved, the work intensity is reduced, and the acquisition of key video data is more reasonable. The invention relates to the technical field of video processing.
Description
technical field [0001] The present invention relates to the technical field of video processing, in particular to a method, device and equipment for determining video key data. Background technique [0002] In the prior art, it is usually necessary to determine the key data of the video file. The key data is used to characterize the main content of the video file. The key data can be one or more frames of the video file. For example, when the video is not being played, it can be Use key data as the default display screen, etc. [0003] The typical application of the key data of video files is the poster of video files. Using a frame of a video file that can represent the main content of the video file as a poster can enable viewers to intuitively and accurately judge the film and television works through the content of the poster. In the prior art, it relies entirely on manual screening of each frame of the video file to obtain a representative picture in the video file as...
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