Video evidence preserving and verifying method and device

Abstract

The invention discloses a video evidence preserving and verifying method and device. The method comprises the following steps of obtaining video stream data from a video source; obtaining multiple key frames from the video stream data according to a sequence of video streams; for each key frame, obtaining the time for extracting the key frame, thus obtaining the time stamps of the key frames, wherein the time is time synchronized with a preset time source; calculating the data and the time stamps of the key frames through a preset hash algorithm, thus obtaining the hash values of the key frames, wherein the hash value of a first key frame is obtained by calculating the data and the time stamp of the first key frame and the video information of the video stream data through the preset hash algorithm; generating the verifying values of the key frames according to the hash values and the time stamps of the key frames, wherein the verifying value of the first key frame is generated according to the hash value and the time stamp of the first key frame and the video information of the video stream data; and correspondingly storing the key frames and the verifying values of the key frames.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a video evidence preservation and verification method and device. Background technique [0002] In recent years, the user scale of the online video industry has been showing an increasing trend. According to the statistics of China Internet Network Information Center (CNNIC): As of June 2015, the number of online video users in China reached 461 million, an increase of 28.23 million compared with the end of last year. The user utilization rate was 69.1%, an increase of 2.3 percentage points from the end of last year. Among them, the number of mobile video users was 354 million, an increase of 41.54 million or 13.3% compared with the end of 2014. The utilization rate of netizens was 59.7%, an increase of 3.5 percentage points compared with the end of 2014. Mobile video users accounted for 76.8% of the total, an increase of 4.6 percentage points from the end of 2014. The ...

AI Technical Summary

Problems solved by technology

[0007] However, the pirated content is dynamically updated in real time, and it is impossible for notaries and notaries to provide services anytime and anywhere, so the above-mentioned traditional methods are obviously difficult to investigate and collect evidence in a timely and comprehensive manner.

At the same time, traditional notarization uses manual operations, which is time-consuming and labor-intensive, and is not suitable for the requirements of large-scale video infringement evidence collection. The cost of notarization remains high, forming a certain burden on the right holders

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