Video Recording Verification via Modulated Illumination
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Solution Overview
Problem
Conventional video recording systems cannot verify whether video data has been falsified from the time of its generation, as they only certify the absence of falsification after an electronic certificate is granted, and new certificates may be issued during video editing, allowing for potential falsification during the editing process.
Innovation Solution
A video recording and verification system that embeds electronic authentication information, including date and time stamps, into the video data at the time of generation by modulating the illumination light, ensuring that any changes can be detected and preventing falsification by including encrypted data within the video data itself.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional electronic certificate systems are used to certify video data, then certification can be provided after video recording, but falsification during video editing cannot be detected and new certificates may be incorrectly issued
Solution Approach 1:
The patent applies preliminary action by embedding encrypted authentication information and timestamps into the video data at the moment of recording, before any editing or certification processes occur. This allows the system to detect falsification immediately rather than attempting verification after the fact, preventing the issuance of incorrect certificates for edited content.
2Adaptability or versatility
If video data is edited to create new files, then new electronic certificates can be granted, but this allows falsification to go undetected
Solution Approach 1:
The patent implements feedback by continuously monitoring video data for the presence of embedded authentication information and timestamps. When video data is submitted for certification, the system checks whether the required encrypted information is present and valid, providing immediate feedback that prevents certification of falsified or edited content while allowing legitimate video files to be certified.
3Reliability
If encryption is applied to video data at generation, then falsification can be prevented, but the system complexity increases
Solution Approach 1:
The patent extracts the authentication function from the main video processing system by using a separate illumination apparatus to embed encrypted information into the video data. This separation allows the encryption and authentication mechanisms to be implemented without significantly complicating the core video recording and processing systems, as the authentication layer operates independently.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This system allows for the certification of non-falsification from the time of video data generation, as the embedded encrypted data can be used to determine if the video data has been altered, preventing new certificates from being issued during editing and ensuring the integrity of the recorded content.
Implementation Method 1
an illumination apparatus applying a modulated illumination light
Data Source
AI summary
A video recording apparatus includes an illumination apparatus applying a modulated illumination light, a control apparatus controlling the illumination apparatus, an imaging apparatus imaging the illumination light and an object at the same time to generate video data; and a storage apparatus storing the video data generated by the imaging apparatus. The control apparatus generates encrypted data by using at least a portion of the video data imaged by the imaging apparatus and encryption information generated as information changing in accordance with a date and time and used for encryption and controls the illumination apparatus such that the illumination light is modulated by the generated encrypted data.