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Video retrieval method and device

A video and video library technology, applied in special data processing applications, instruments, electrical and digital data processing, etc., can solve the problems of weak feature expression, high feature dimension, and inability to achieve fast and accurate video retrieval. Effect

Active Publication Date: 2017-03-15
DATANG SOFTWARE TECH
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Problems solved by technology

[0004] Existing retrieval methods based on video content usually use a combination of multi-image features, and most of the features used are simple features, resulting in high feature dimension or low feature expression. Therefore, it is generally impossible to achieve fast retrieval speed, high accuracy effect

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Embodiment Construction

[0029]The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0030] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0031] figure 1 An exemplary system architecture 100 to which embodiments of the video retrieval method or video retrieval apparatus of the present application can be applied is shown.

[0032] Such as figure 1 As shown, the system architecture 100 may include terminal devi...

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Abstract

The invention discloses a video retrieval method and device. A specific implementation mode of the method comprises the following steps: acquiring a retrieval request sent by a user side, wherein the retrieval request comprises an image to be retrieved; extracting an image characteristic of the image to be retrieved; matching the image characteristic of the image to be retrieved with secondary indexes, which are pre-extracted according to images in a video library, in a first index sequence; matching the image characteristic of the image to be retrieved with third-level index in a class where the successfully matched secondary index is positioned in the first index sequence; and feeding back a video to which the successfully matched third-level index in the pre-extracted image characteristic sequence to the user side. The implementation mode realizes quicker and more accurate video retrieval.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to the field of multimedia technology, especially to a video retrieval method and device. Background technique [0002] With the development of computer technology, pattern recognition and intelligent video analysis technology can provide technical support for mass video retrieval. [0003] Generally, surveillance video retrieval methods (images, video clips) in intelligent video analysis technology can be roughly divided into three categories: one is based on video target retrieval; the other is retrieval based on video content; the third is retrieval based on video auxiliary information. . [0004] Existing retrieval methods based on video content usually use a combination of multi-image features, and most of the features used are simple features, resulting in high feature dimension or low feature expression. Therefore, it is generally impossible to achieve fast retri...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/735G06F16/783
Inventor 李波刘永霞朱国刚张洁王广宇王智萍
Owner DATANG SOFTWARE TECH
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