Video Tampering Detection With Pre-Event Recording Protection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video data tampering detection technologies fail to adequately protect untampered video data when tampering occurs, as they do not ensure the integrity of the video data is maintained post-detection.
Innovation Solution
A video reception apparatus and transmission apparatus equipped with processors and memory to determine video data tampering and initiate recording or change delivery methods upon detection, utilizing digital signatures, tampering detection units, and various tampering detection technologies such as compression artifacts, noise pattern analysis, and machine learning to ensure untampered data is protected.
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 tampering is improved, but the protection of untampered video data is insufficient
Solution Approach 1:
The system performs preliminary recording of video data before tampering occurs. When tampering is detected, the recording that was made before the tampering event is used to protect the integrity of the untampered portion of the video data, ensuring that the original uncorrupted data is preserved and can be referenced.
Solution Approach 2:
The system continuously monitors video data for tampering and provides feedback by comparing detected tampering conditions against recorded baseline data. When tampering is detected, the system uses the feedback mechanism to trigger protection protocols that preserve the integrity of untampered data segments by referencing the pre-tampering recorded state.
2Productivity
If video data is continuously transmitted without recording, then transmission efficiency is maintained, but protection capability when tampering occurs is reduced
Solution Approach 1:
The system performs preliminary recording of video data at specific intervals or at the beginning of transmission sessions. This pre-recording action establishes a baseline of uncorrupted data that can be referenced if tampering occurs during transmission, allowing the system to maintain continuous transmission efficiency while having protective recording data available when needed.
Solution Approach 2:
The system creates a copy of the video data for recording purposes while the original continues to be transmitted. This copying mechanism allows the system to maintain the original transmission efficiency by not interrupting or retransmitting the entire video stream, while still having a protective copy available for comparison and integrity verification if tampering is detected.
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 start video data recording in a case where the received video data is determined to have been tampered with.