Multimedia digital watermark evidence taking mobile phone

Abstract

The invention discloses a multimedia digital watermark evidence taking mobile phone. The multimedia digital watermark evidence taking mobile phone is an intelligent evidence taking mobile phone whichuses the unique stability, concealment, security and fragility of a fragile digital watermark to ensure the integrity, the authenticity, the stability, the reliability and the authority of photographed and recorded multimedia data based on an image, audio and video fragile digital watermark embedding and extraction technology. When a user uses the mobile phone, imperceptible and unmodifiable fragile digital watermark information with unique identity confirmation is embedded in real time in a photographed image, audio and video. The image or the audio or the video with the fragile watermark canbe normally used and distributed but can not be modified manually. The authenticity of a file can be identified according to whether the photographed digital file contains the digital watermark information. The evidence taking process is quick, efficient, accurate, safe and convenient. The evidence taking content has the uniqueness of a digital evidence and the legal authority of evidence use, and the multimedia digital watermark evidence taking mobile phone disclosed in the invention can be used for evidence taking and recording in fields such as judicature, law enforcement and claim.

Description

technical field [0001] The invention belongs to mobile communication terminal technology. It specifically involves the application in forensic records and other fields, which can effectively prevent multimedia digital files from being edited and forged, and can track and trace the source of multimedia data files for forensics. Background technique [0002] With the development of information digitization, multimedia digital evidence such as photos, audio, and video has begun to be used in judicial evidence collection, law enforcement records, insurance claims and other fields. It has become an inevitable trend for digital evidence to be used as legal evidence in the law enforcement process. However, digital evidence has attributes that can be tampered without trace, easily edited, and forged. Therefore, multimedia digital files are used as the basis for evidence collection, and non-real-time recording files are used as evidence for real-time evidence collection; the person ...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is: for multimedia digital files as the basis for evidence collection, there are non-real-time recording files as evidence collection basis for real-time evidence; The recording basis of the parties involved cannot be traced back; the originality of the recording files is difficult to judge and other problems. It i...

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