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Method and device for identifying live multimedia files

A multimedia file and identification method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve problems such as inability to identify live video

Active Publication Date: 2018-04-17
SHANGHAI ZHANGMEN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to provide a method and device for identifying live multimedia files, so as to solve the problem that the prior art cannot identify live video

Method used

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  • Method and device for identifying live multimedia files
  • Method and device for identifying live multimedia files
  • Method and device for identifying live multimedia files

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] The first embodiment provides an embodiment of a method for identifying a live multimedia file. The execution body of the method provided in this embodiment is a cloud server, and the user terminal sends a target multimedia file identification request. Wherein, a feature database is preset in the cloud server, and the latest information of the current live multimedia file is stored in the feature database. When the user terminal needs to identify the target multimedia file of the live broadcast, the cloud server receives the identification request, matches the characteristic information of the target multimedia file with the characteristic samples in the preset characteristic database, and identifies the target through the identification information corresponding to the successfully matched characteristic samples multimedia files.

[0045] figure 1 It is a flow chart of the method according to Embodiment 1 of the present invention, such as figure 1 As shown, the metho...

Embodiment 2

[0069] This embodiment two provides a preferred embodiment of a method for identifying live multimedia files, which is a further preferred embodiment on the basis of embodiment one, and the specific improvements are:

[0070] First of all, in this embodiment, the fingerprint information of the audio data of the multimedia file is used as the feature information of the multimedia file, that is, the feature samples stored in the feature database are the fingerprint information of the audio data, and the feature information of the acquired target multimedia file is also Correspondingly, it is the fingerprint information of the audio data of the target multimedia file, so no matter when updating the feature database or when obtaining the feature information of the target multimedia file, it is necessary to obtain the audio data of the multimedia file and extract the fingerprint information of the audio data, which greatly reduces the The data transmission volume of the system is re...

Embodiment 3

[0104] This embodiment three provides an embodiment of a method for identifying live multimedia files. This embodiment is a further preferred embodiment on the basis of embodiment two. The specific improvements are:

[0105] First of all, the audio segment of the live multimedia file is formed by merging the left channel data and the right channel data. Correspondingly, the characteristic information of the target multimedia file is also the fingerprint information of the stereo data, and after merging the left and right channel data is For stereo data, set the weight parameter to adjust the proportion of the left and right channel data in the stereo data according to actual needs.

[0106] Further, when constructing the feature information of the target multimedia file, by setting multiple sets of weight data, the left and right channel data of the target multimedia file is converted into multiple sets of stereo data, and the fingerprint information corresponding to each set o...

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Abstract

The invention discloses an identification method and an identification device for live multi-media files. The method includes the steps of: obtaining current feature information of the live multi-media file according to the real-time data flow of the input live multi-media file; positioning a multi-media record to be updated in a feature database according to the identification information of the live multi-media file; updating a feature sample in the multi-media record to be updated according to the current feature information of the live multi-media file; receiving an identification request for identifying the target multi-media file, and matching feature information of the target multi-media file included in the identification request with the feature sample in the feature database, to position the multi-media record corresponding to the target multi-media file; obtaining the identification information of the multi-media file corresponding to the target multi-media file. According to the identification method and device, live videos can be identified.

Description

technical field [0001] The present invention relates to the technical field of video identification, in particular to a method and device for identifying live multimedia files. Background technique [0002] The current video search method usually uses the "keyword" of the video to search. This not only requires the user to know the relevant information of the video, but also requires the search service provider to maintain a "keyword" database corresponding to the video in a timely manner. In fact, we often encounter such embarrassment: we come across an interesting video in the streets or in front of the TV, but we are not familiar with or even know the information of this video, let alone search through "keywords" It's time for this video. [0003] Therefore, video recognition based on sound came into being under the impetus of this practical demand. In the technology based on sound recognition video, when the user needs to identify a certain video, first obtain the sou...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/30
CPCG06F16/433
Inventor 谭傅伦许泽军王晓萌王英杰袁斌
Owner SHANGHAI ZHANGMEN TECH
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