Video evidence preserving and verifying method and device

A technology of evidence and video, applied in the field of data processing, can solve problems such as high cost, difficult investigation and evidence collection, time-consuming and laborious, etc., and achieve the effects of accurate and reliable preservation, saving storage space, and improving efficiency

Inactive Publication Date: 2016-05-25
BEIJING ANXUN NETWORK TECH CO LTD
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 ma

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Video evidence preserving and verifying method and device
  • Video evidence preserving and verifying method and device
  • Video evidence preserving and verifying method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0100] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0101] The present invention aims at the technical problem of real-time update and inconvenient preservation of video evidence in the prior art, and extracts key frames from video streams received in real time from Internet online video sources, and performs evidence preservation on each key frame of the video stream according to the extraction time, thereby Realize real-time security of video streams. Moreover, since there is no need to save the entire video file, but only key frames are saved, a large amount of storage space can be saved. At the same time, evidence preservation is carried out through machines, which saves the manpower time of the justice personnel...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

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 ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04N21/8352H04N21/845H04N21/8547
CPCH04N21/8352H04N21/8456H04N21/8547
Inventor 王琪徐单恒阎飞飞
Owner BEIJING ANXUN NETWORK TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap