Key frame extraction method and device and storage medium

An extraction method and technology of an extraction device, which are applied in the field of image processing, can solve the problems of large amount of calculation, low speed of video key frame extraction, complex key frame extraction algorithm, etc., and achieve the effects of improving speed, accuracy and flexibility.

Pending Publication Date: 2019-06-28
TENCENT TECH (SHENZHEN) CO LTD
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AI Technical Summary

Problems solved by technology

However, the key frame extraction algorithm is more complex, the amount of calculation is large, and the extraction speed of video key frames is relatively low; and the key frame extraction algorithm has certain requirements on the frame rate of the video, that is, it depends on the frame rate of the video, so for some Frame rate video, the accuracy of key frame extraction is low

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  • Key frame extraction method and device and storage medium
  • Key frame extraction method and device and storage medium
  • Key frame extraction method and device and storage medium

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Embodiment Construction

[0069] 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 those skilled in the art without creative efforts fall within the protection scope of the present invention.

[0070] An embodiment of the present invention provides an information interaction system, the system includes the key frame extracting device provided in any one of the embodiments of the present invention, and the key frame extracting device can be integrated in a server and other devices; in addition, the system can also include other devices, For example, the terminal may be a mobile phone, a tablet computer, and the like.

[0071] refer to Figure 1a , the embodiment of th...

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Abstract

The embodiment of the invention discloses a key frame extraction method and device and a storage mediumThe embodiment of the invention includes: acquiring the video frame set corresponding to the video,wherein the video frame set comprises a plurality of video frames; determining a current reference video frame in the video frame set, extracting a corresponding video frame from the video frame setaccording to the reference video frame to serve as a target video frame, acquiring similarity information between the target video frame and the reference video frame, and determining the target video frame as a key frame when the similarity information meets a preset condition. According to the scheme, the video key frames can be extracted based on the similarity between the video frames;, the effective video key frame can be quickly extracted from the video, the speed of extracting the video key frame is increased, the scheme does not depend on the frame rate of the video, the scheme can beapplied to videos of various frame rates, and the accuracy and flexibility of extracting the video key frame are improved.

Description

technical field [0001] The present invention relates to the technical field of image processing, in particular to a key frame method, device and storage medium. Background technique [0002] A video consists of a series of frames, and each frame is a picture or image in the video, called a video frame. Among them, the key frame of the video is important auxiliary information of the video. A key frame is also called an I frame, which is the most important frame for inter-frame compression coding. Video encoding is performed according to "groups", and each group is called a GOP (Group of Picture, group of pictures). There is no connection between GOP and GOP. Coding relationships are only created between GOPs. Each GOP starts with a key frame, which is a complete picture, and the frames in the middle of the GOP are incomplete, and need to be calculated by key frames, previous frames, and subsequent frames. [0003] When it is actually necessary to process the video, such ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/783G06F16/73G06K9/00
CPCG06V10/75
Inventor 董霙
Owner TENCENT TECH (SHENZHEN) CO LTD
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