Media Stream Processing Selective Frame Removal
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Solution Overview
Problem
Current media streaming technologies require excessive bandwidth to review media streams faster than real time, leading to inefficient data transmission and storage, especially in industries like security and surveillance where rapid review of long durations of video is necessary.
Innovation Solution
The system selectively removes portions of media stream data to reduce the amount of data transmitted and stored, allowing for faster review without increasing bandwidth, by filtering out non-essential frames and delivering only key frames, thereby reducing the temporal fidelity of the stream.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If conventional media streaming technology is used to review media streams faster than real time, then the review speed increases, but the bandwidth requirement increases proportionally
Solution Approach 1:
The patent extracts and removes redundant or less important frames from the media stream, keeping only key frames that contain essential information. This selective extraction reduces the data volume that needs to be transmitted while maintaining the ability to review the media content at accelerated speeds without proportionally increasing bandwidth requirements
Solution Approach 2:
The media stream is segmented into discrete frames with different importance levels (key frames and non-key frames). By segmenting the stream and selectively transmitting only key frames at accelerated rates, the system achieves faster review speeds without requiring proportional bandwidth increases, as the transmitted data volume is significantly reduced
2Loss of time
If playback speed is increased to review media faster, then the review time decreases, but the bandwidth usage increases
Solution Approach 1:
The system extracts only the essential key frames from the media stream for transmission. By removing redundant frame data, the bandwidth required to transmit the stream at accelerated playback speeds is significantly reduced, allowing faster review without proportional bandwidth increases
Solution Approach 2:
The patent changes the parameter of frame selection by using temporal fidelity reduction - transmitting fewer frames per second while maintaining the ability to play back at higher speeds. This parameter change allows the system to achieve faster review times without the bandwidth consumption that would normally accompany increased playback speed
3Loss of information
If all frames are transmitted to maintain temporal fidelity, then the content quality is preserved, but the data volume increases
Solution Approach 1:
The patent extracts and removes non-essential frames from the media stream, keeping only key frames that contain the most important visual information. This extraction process significantly reduces data volume while maintaining sufficient temporal fidelity for effective media review, as key frames capture the essential content changes
Solution Approach 2:
The system applies different quality levels to different parts of the media stream by transmitting key frames at full quality and omitting or reducing the quality of non-key frames. This local quality approach maintains essential content information while reducing overall data volume, achieving an optimal balance between information preservation and data efficiency
Data Source
AI summary
Portions of streaming media are selectively removed for storage and/or delivery over a computer network medium. The amount of data in a media stream itself may be selectively reduced and, the amount of data in the media stream may be selected for delivery and/or storage so that it is reduced in a manageable and consistent fashion. Data within a media stream of a given temporal duration may be selected for delivery and/or storage in such a way that leads to a proportional increase in the maximum speed at which data from the given temporal duration of the media stream may be transmitted and reviewed while simultaneously providing the benefit of reducing overall storage capacity requirements.