Video Frame Decimation via Reconstructed Feedback Loop
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Solution Overview
Problem
Existing video compression systems face challenges in reducing bandwidth while maintaining video quality, especially in applications like digital TV, satellite news feeds, cell phones, and internet video, where high spatial resolution and fidelity are required.
Innovation Solution
The method involves frame decimation through a feedback loop that injects a reconstructed frame as a next frame in the encoding process, effectively reducing the frame rate and data to be compressed, allowing for higher fidelity and reduced bandwidth without altering the bitstream standard.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If frame rate is reduced to decrease bandwidth, then bandwidth consumption is reduced, but video quality deteriorates
Solution Approach 1:
The patent applies feedback by injecting the reconstructed frame back into the encoding process as the next input frame. This creates a feedback loop where the decoder's output becomes the encoder's input, allowing the system to maintain video quality while reducing frame rate by using previously reconstructed frames to generate subsequent frames through the encoding process.
Solution Approach 2:
The patent performs preliminary reconstruction of frames before they are needed in the feedback loop. By reconstructing frames in advance and feeding them back into the encoder, the system prepares video data beforehand, allowing for reduced bandwidth transmission while maintaining quality through pre-computed reconstructed frames.
2Manufacturing precision
If spatial resolution is increased to improve video quality, then video quality is improved, but bandwidth requirement increases
Solution Approach 1:
By implementing a feedback loop where reconstructed frames are injected back into the encoding process, the system can maintain high spatial resolution and video quality while reducing overall bandwidth requirements. The feedback mechanism allows the system to reuse reconstructed frame data, reducing the need to transmit high-resolution data for every frame.
Solution Approach 2:
The patent uses copying by reconstructing frames from previously transmitted and decoded data. Instead of transmitting complete high-resolution frames repeatedly, the system creates copies/reconstructions of frames through the decoding and feedback process, reducing bandwidth while maintaining visual quality through the copied reconstructed imagery.
3Loss of energy
If frame decimation is applied to reduce data volume, then bandwidth is reduced, but temporal resolution deteriorates
Solution Approach 1:
The feedback loop compensates for temporal resolution loss by continuously injecting reconstructed frames back into the encoding process. This ensures that even though frames are decimated, the temporal continuity is maintained through the feedback mechanism, allowing the system to reduce bandwidth while minimizing temporal resolution deterioration.
Solution Approach 2:
The patent implements periodic frame transmission and reconstruction cycles. By systematically decimating frames at regular intervals and using feedback to reconstruct intermediate frames, the system creates a periodic pattern of transmission that reduces overall data volume while maintaining acceptable temporal resolution through the rhythmic reconstruction process.
Data Source
AI summary
System and method of providing improved signal compression using frame decimation through frame simplification and generating an encoded bitstream of video frames therefrom are disclosed. The encoding method comprises zeroing a difference frame generated by an encoder by using a feedback loop that injects a reconstructed frame, generated by the encoder of the difference frame, as a next frame of the video frames to be processed by the encoder. The encoding system comprises an input configured to provide a stream of video frames; a first process configured to generate a difference frame, and a second process configured to generate a reconstructed frame. A feedback loop of the system is configured to inject a generated reconstructed frame from the second process of a generated difference frame from the first process as a next frame of the video frames in the stream to be processed into the encoded bitstream by the encoding system.