Video fingerprint generation method, retrieval method, electronic equipment and medium
A video fingerprint and video technology, applied in the field of video processing, can solve problems such as large computational load and inaccurate video retrieval, and achieve the effects of improving media asset storage efficiency, reducing content distribution, and improving user experience.
Pending Publication Date: 2020-05-12
MIGU CO LTD +1
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Problems solved by technology
[0008] Embodiments of the present invention provide a method for generating video fingerprints, a retrieval method, electronic equipment and media to solve the problems of inaccurate video retrieval and large amount of computation in the prior art
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[0030] In order to make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be described clearly and completely in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.
[0031] In general, the present invention uses an improved unsupervised deep learning method to extract features from the original video or the video to be tested, and generate a two-dimensional feature vector in a unified format as the fine fingerprint of the video; then the fine fingerprint of the video uses the information entropy T...
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The embodiment of the invention provides a video fingerprint generation method, a retrieval method, electronic equipment and a storage medium, and the generation method comprises the steps: obtaininga video fine fingerprint represented by a two-dimensional feature vector based on a video feature extraction model; and based on the information entropy, converting the video fine fingerprint into a video brief fingerprint represented by a one-dimensional feature vector. According to the generation method provided by the embodiment of the invention, the one-dimensional feature vector for accurately representing the video is obtained by establishing the independent video fingerprint library and calculating based on the information entropy. Furthermore, in the retrieval method, the video to be detected is quickly compared with the video fingerprint in the established video fingerprint library, so that the video can be accurately retrieved and confirmed, the phenomenon of excessive same or similar videos in content distribution and personalized recommendation results is reduced, and the user experience is improved.
Description
Technical field [0001] The present invention relates to the technical field of video processing, in particular to a video fingerprint generation method, a retrieval method, electronic equipment and a medium. Background technique [0002] The Video Fingerprinting service is based on video fingerprinting technology. According to the video content, a series of fingerprint characters that can uniquely identify the current video are generated, which can effectively avoid the influence of operations such as format conversion, editing, cropping and splicing, and compression rotation of video files. It can be used in multiple scenarios such as video similarity checking, video copyright, and advertisement identification. Video fingerprints have multiple purposes such as video identification, retrieval, and copyright protection. [0003] In the existing video fingerprint matching technology, the obtained frame pictures of the video to be tested are divided into blocks, and the frame pictures...
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Login to View More IPC IPC(8): G06F16/783
CPCG06F16/783
Inventor 闫威徐嵩王琦李琳王科杜欧杰
Owner MIGU CO LTD