Video Tampering Detection With Recording Setting Switching
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Solution Overview
Problem
Existing video data tampering detection technologies fail to adequately protect untampered video data when tampering occurs, as they do not effectively prevent the transmission or recording of altered video content.
Innovation Solution
A video reception apparatus and transmission apparatus equipped with processors and memory to determine video tampering through digital signatures and change recording settings or delivery methods when tampering is detected, using encryption, hash values, and various tampering detection technologies such as compression artifacts, noise pattern analysis, and machine learning to protect untampered data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If video data tampering detection is implemented using digital signatures and hash values, then the ability to detect tampered video data is improved, but the protection of untampered video data remains insufficient
Solution Approach 1:
The system segments video data processing into two distinct pathways: one for detecting tampered data and another for protecting untampered data. The video reception apparatus separately handles detection results and maintains a buffer for potential playback, creating functional segmentation that addresses both detection accuracy and protection reliability independently
Solution Approach 2:
A buffer storage mechanism acts as an intermediary between video reception and playback. This buffer holds video data temporarily, allowing the system to verify integrity through digital signatures before committing to playback, thus protecting untampered data without compromising detection capabilities
2Measurement precision
If existing tampering detection technologies are used, then tampered video data can be identified, but further tampering prevention and untampered data protection are not achieved
Solution Approach 1:
The system applies preliminary anti-action by pre-attaching digital signatures to video data during encoding and maintaining a buffer of verified untampered data ready for playback. This preparatory measure prevents further tampering impact by having protective mechanisms in place before tampering can occur during transmission or storage
Solution Approach 2:
The video transmission apparatus performs preliminary action by calculating hash values and attaching digital signatures to video data before transmission. The reception apparatus similarly prepares buffer storage in advance, enabling immediate verification and protection responses without waiting for tampering to be detected after the fact
Data Source
AI summary
A video reception apparatus configured to communicate with a video transmission apparatus includes one or more processors, and one or more memories storing instructions that, when executed by the one or more processors, cause the one or more processors to function as a reception unit configured to receive video data via the communication, a determination unit configured to determine whether the received video data has been tampered with, and a transmission unit configured to transmit, to the video transmission apparatus, a command to change a setting related to video data recording in a case where the received video data is determined to have been tampered with.