Video Transmission Decoupling Color Components
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Solution Overview
Problem
Existing digital video transmission methods require high bandwidth due to the need to transmit all color components of color digital video frames, which is inefficient given that human perception relies more heavily on grayscale components.
Innovation Solution
Extracting grayscale components from color video frames and transmitting them at a first rate, while periodically fusing and transmitting color components with grayscale frames at a second rate, thereby reducing the overall bandwidth requirement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If all color components of color digital video frames are transmitted, then complete color information is preserved, but bandwidth requirement increases
Solution Approach 1:
The patent extracts and separates the grayscale component (Y) from the color components (UV) of the video signal. By transmitting the grayscale component continuously at a higher rate and the color components periodically at a lower rate, the system reduces overall bandwidth requirements while preserving essential visual information that human perception relies upon most heavily.
Solution Approach 2:
The patent implements periodic transmission of color components interspersed with grayscale frames. Instead of continuous color component transmission, color information is transmitted at periodic intervals, which significantly reduces bandwidth consumption while maintaining acceptable visual quality for applications with slow scene changes.
2Reliability
If grayscale components are transmitted continuously at high rate, then image quality is maintained, but bandwidth consumption increases
Solution Approach 1:
The patent applies different transmission qualities to different components of the video signal. The grayscale component, which is more critical for human perception and motion detection, is transmitted continuously at a higher rate with greater reliability. The color components are transmitted at a lower rate with reduced frequency, optimizing the allocation of bandwidth according to the relative importance of each component.
3Quantity of substance
If color components are transmitted less frequently, then bandwidth is reduced, but color accuracy deteriorates
Solution Approach 1:
The patent transmits grayscale components continuously and periodically transmits color components in advance of when they are needed for frame reconstruction. This preliminary transmission of color information, combined with the continuous grayscale stream, allows the receiver to reconstruct frames with acceptable color accuracy even when color components are not transmitted for every frame.
Data Source
AI summary
Techniques are provided herein for receiving at a video processing device color video frames comprising grayscale components and color components. The grayscale components corresponding to each of the color video frames are extracted as each of the color video frames is received to obtain grayscale video frames. The grayscale video frames are transmitted at a first transmission rate. Color components for selected color video frames are periodically fused with selected grayscale video frames to obtain fused color video frames, and the fused color video frames are transmitted at a second transmission rate interspersed with the grayscale video frames transmitted at the first transmission rate.