Video Replay Apparatus with Dynamic Information Rate Control
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Solution Overview
Problem
The existing video editing process is time-consuming due to the need for human operators to manually replay and edit video footage in real-time, segment shots, and arrange them chronologically, which is inefficient and labor-intensive.
Innovation Solution
A video replay apparatus that controls the replay of video material based on its information content, allowing for variable information rates, enabling users to efficiently skim through sections with low content changes while focusing on important sections, using a jog/shuttle wheel to control the information rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If video footage is replayed at constant frame rate for manual editing, then the editor can view all footage in detail, but the editing process becomes very time consuming
Solution Approach 1:
The replay system dynamically adjusts the replay rate based on scene changes. When significant scene changes are detected, the system slows down or pauses to allow detailed viewing. When no significant changes occur, the system speeds up playback to skip through redundant footage. This dynamic adjustment resolves the contradiction by providing detail viewing capability only when necessary, thereby reducing overall editing time.
Solution Approach 2:
The system introduces an intermediary mechanism (scene change detection algorithm) that automatically identifies significant portions of footage. This intermediary processes the video content and controls the replay rate accordingly, eliminating the need for manual frame-by-frame review of all footage while preserving the ability to view important sections in detail.
2Manufacturing precision
If the editor manually replays and reviews footage to assess content, then accurate editing decisions can be made, but the process requires extensive human effort and time
Solution Approach 1:
The system performs self-service by automatically analyzing video content, detecting scene changes, and determining which portions require detailed review. This automation reduces operator effort significantly while maintaining editing decision accuracy, as the system handles the preliminary assessment work that would otherwise require extensive manual review.
Solution Approach 2:
The system provides feedback to the editor by highlighting significant scene changes and controlling replay rates based on detected content importance. This feedback mechanism guides the editor's attention to relevant portions of footage, enabling accurate editing decisions with minimal manual effort, as the system has already performed the initial content assessment.
3Loss of information
If all video footage is reviewed in real time to establish content, then complete understanding of the material is achieved, but productivity is significantly reduced
Solution Approach 1:
The system extracts and identifies only the significant portions of video footage that contain meaningful scene changes or content transitions. By separating important segments from redundant footage, the system enables editors to focus on content-rich portions while automatically skipping through repetitive or unchanged sections, thereby maintaining complete content understanding while dramatically improving editing throughput.
Solution Approach 2:
The system implements skipping functionality that allows rapid passage through portions of footage with no significant changes. By detecting continuous frames or similar content, the system rushes through these sections at high speed, ensuring no information is lost while maximizing productivity. Editors can still access detailed views of important sections when needed.
Data Source
AI summary
A video replay apparatus including a content storage device, a replay controller configured to control a replay of video material from the content storage device, the replay controller being configured to control the replay in accordance with metadata associated with the video material, the metadata defining an information content of the video material and defining an information event within the video material as a threshold change in the information content, and the replay controller is further configured to replay the video material with a pre-defined number of information events in a unit of time in a replayed sequence.