Video Watermarking System for Interview Source Traceability
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Solution Overview
Problem
Current solutions for recording and evaluating interview sessions lack cost-effectiveness, quality, and efficiency, particularly in segment-based viewing and risk unauthorized distribution of confidential video media.
Innovation Solution
A method and system that watermarks video recordings with source-identifying information, allowing segment-based viewing and tracing unauthorized distribution, enabling secure and efficient evaluation processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If watermarking is applied to trace unauthorized distribution, then security and traceability are improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies watermarking to video frames during the encoding process before distribution, rather than adding it later. This preliminary action embeds the watermark information into the compressed video data stream, making the tracing mechanism integrated into the existing workflow and reducing the need for separate complex watermarking systems.
Solution Approach 2:
The patent uses metadata alongside the watermark to store additional tracing information. This intermediary metadata structure allows complex traceability data to be organized and stored efficiently without directly increasing the complexity of the watermarking algorithm itself, separating the watermarking function from the data management function.
2Productivity
If segment-based viewing is implemented for efficient review, then productivity is improved, but device complexity increases due to additional segmentation and control mechanisms
Solution Approach 1:
The patent divides the interview video into distinct segments based on question-response units, allowing evaluators to navigate and review specific portions independently. This segmentation is implemented by identifying temporal boundaries in the video stream corresponding to individual interview questions and answers, enabling efficient selective playback without requiring complex manual editing tools.
Solution Approach 2:
The patent implements dynamic segment navigation where the video player automatically adjusts playback based on evaluator interactions. When evaluators select specific segments or use skip functionality, the system dynamically repositions playback points and adjusts timing, providing adaptive viewing control that enhances productivity without requiring fixed, pre-configured segment structures.
3Reliability
If comprehensive source-identifying information is collected, then traceability and security are improved, but loss of time in processing and verifying information increases
Solution Approach 1:
The patent collects and stores source-identifying information such as device identifiers, user credentials, and metadata during the video upload and encoding phase. This preliminary collection ensures that all necessary tracing data is captured before distribution, eliminating the need for time-consuming data gathering if unauthorized sharing occurs later.
Solution Approach 2:
The system automatically extracts and verifies source-identifying information from the uploaded video files and associated metadata without requiring manual review. Automated processes validate device identifiers, user permissions, and file integrity, reducing the time investment needed for information verification while maintaining high accuracy in source identification.
Data Source
AI summary
An approach is provided for a segment-based viewing of a watermarked recording. The approach involves receiving a request, from an evaluator, to access one of a plurality of media associated with a plurality of interviewees, wherein each of the plurality of media represents a recording of an interview of a corresponding interviewee; and wherein the request relates to evaluation of the corresponding interviewee for admission or hiring. The approach also involves determining source-identifying information associated with the evaluator. The approach further involves determining source-identifying information associated with the request. The approach additionally involves generating a watermark based on the source-identifying information, wherein the watermark is configured to depict an identifier of the evaluator during a presentation of the requested media. The approach further involves modifying the one media to superimpose the watermark on the recording. The approach also involves initiating transmission of the requested media with the generated watermark to a target device associated with the evaluator.