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Identification method and device for multimedia file

A multimedia file and recognition method technology, applied in the field of multimedia file recognition, can solve the problem of low fineness of video recognition, achieve the effect of narrowing the range of recognition and solving the problem of low fineness of video recognition

Inactive Publication Date: 2015-05-06
LETV INFORMATION TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a method and device for multimedia file recognition to solve the problem of low fineness of video recognition in the prior art

Method used

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  • Identification method and device for multimedia file
  • Identification method and device for multimedia file
  • Identification method and device for multimedia file

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0041] This embodiment one provides an embodiment of a method for identifying a multimedia file. In the method of this embodiment, audio watermark data is pre-added to the audio data of the target multimedia file. When identifying the target multimedia file, the predetermined The set audio watermark sample and the preset feature sample, specifically, such as figure 1 As shown, the method includes the following steps S102 to S114.

[0042] Step S102: Obtain mixed audio data corresponding to the target multimedia, where the mixed audio data includes audio data and audio watermark data of the target multimedia file.

[0043] The target multimedia file can be video (or audio). During the playback of the video (or audio), the identification device starts the recording device to record the sound, so as to obtain the mixed audio data of the video (or audio). Since the video (or audio) or audio), the audio watermark data is added in advance, so the recorded mixed audio data includes ...

Embodiment 2

[0064]The second embodiment provides an embodiment of a multimedia file identification method, which is a preferred embodiment based on the first embodiment. In the method of this embodiment, the target multimedia file is a target video; pre-added voice print code data in the audio data of the target video; while obtaining the audio data of the target video, the voice data of the user has been obtained; the identification method On the basis of identifying the target multimedia file in Embodiment 1, the accuracy of the recognition result can be further verified according to the user's voice data; when identifying the target video, the preset voice print code samples and preset feature samples will be used ; When verifying the accuracy of the recognition result based on the user's voice data, the preset voice samples will be used, specifically, as figure 2 As shown, the method includes the following steps S202 to S212.

[0065] Step S202: Obtain mixed audio data corresponding...

Embodiment 3

[0083] The third embodiment provides an embodiment of a multimedia file identification method, which is another preferred embodiment based on the first embodiment. In the method of this embodiment, the audio watermark data is pre-added in the audio data of the target multimedia file, and when the target multimedia file is identified, the preset audio watermark samples and preset feature samples will be used, specifically, as image 3 As shown, the method includes the following steps S302 to S320.

[0084] Step S302: Obtain mixed audio data corresponding to the target multimedia, where the mixed audio data includes audio data and audio watermark data of the target multimedia file.

[0085] Step S304: Extract audio watermark data in the mixed audio data.

[0086] Step S306: Match the audio watermark data and the preset audio watermark samples to obtain a first matching result.

[0087] The above step S302 to step S306 correspond to the step S102 to step S106 in the first embod...

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Abstract

The invention discloses an identification method and an identification device for a multimedia file. The identification method for the multimedia file comprises the following steps: obtaining mixed audio data corresponding to a target multimedia, wherein the mixed audio data comprises audio data and audio watermark data of the target multimedia file; extracting the audio watermark data in the mixed audio data; matching the audio watermark data with a preset audio watermark sample to obtain a first matched result; determining a feature sample part corresponding to the first matched result in a preset feature sample; extracting feature information of the audio data in the target multimedia file in the mixed audio data; matching the feature information with the feature sample part to obtain a second matched result; identifying the target multimedia file according to the second matched result. The identification method and device can be used for improving fineness of audio identification.

Description

technical field [0001] The present invention relates to the technical field of multimedia file identification, in particular to a method and device for identifying multimedia files. Background technique [0002] The current video search method usually uses the "keyword" search of the video. 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 actual demand, and it realized the recognition of video itself by the sound of the video. The technology of video recognition based on so...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/683G06F16/433
Inventor 王晓萌谭傅伦许泽军王英杰袁斌
Owner LETV INFORMATION TECH BEIJING
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