Video Compression Packets for Low-Bandwidth Frame Transmission
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Solution Overview
Problem
Existing video compression systems face challenges in reducing bandwidth usage during video frame transmission across networks, particularly in Ethernet LANs, as they often require significant bandwidth for transmitting full pixel data, especially when using inefficient compression methods like NEW_PIXEL, and struggle to adapt to varying bandwidth constraints.
Innovation Solution
The proposed video compression system incorporates additional commands such as Short Delta from the same pixel in the previous frame (Short_Delta NC) and Short Delta from the pixel immediately to the left (Short_Delta_CL), along with the Make Pixel using fewer bits (Short_Make_Pixel), within an eight-bit packet structure, and allows users to set comparison depth dynamically between reference and intermediate frames, enabling more efficient compression by varying the rMask and adjusting compression parameters like frame dropping and color depth.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If NEW_PIXEL compression method is used, then pixel data can be transmitted, but bandwidth usage is inefficient
Solution Approach 1:
The patent segments pixel data transmission into multiple compression modes (NO_CHANGE, COPY_ABOVE, COPY_LEFT, MAKE_SERIES, NEW_PIXEL, and their delta variants). Each mode handles different types of pixel relationships, allowing the system to select the most efficient segmentation strategy for each pixel or group of pixels, thereby reducing overall bandwidth usage while maintaining compression effectiveness.
Solution Approach 2:
The patent dynamically adjusts compression parameters including comparison depth (varying between reference and intermediate frames), frame dropping ratios, and color depth based on bandwidth constraints and scene complexity. This dynamic adaptation allows the system to optimize bandwidth usage in real-time while maintaining acceptable image quality and compression efficiency.
2Productivity
If compression parameters are adjusted dynamically, then optimal compression rate is maintained, but system complexity increases
Solution Approach 1:
The patent pre-defines a set of compression modes and parameter combinations (eight distinct compression commands including NO_CHANGE, COPY_ABOVE, COPY_LEFT, MAKE_SERIES, NEW_PIXEL, and three delta variants). These pre-configured options provide a structured framework that simplifies dynamic parameter adjustment while maintaining optimal compression rates across different scenarios.
Solution Approach 2:
The patent implements dynamic parameter changes by varying comparison depth between reference frames and intermediate frames, adjusting frame dropping ratios, and modifying color depth based on bandwidth constraints. These parameter changes are systematically managed through the predefined compression modes, balancing compression rate optimization with controlled system complexity.
3Quantity of substance
If more frames are transmitted within given data rate, then bandwidth efficiency improves, but video latency increases
Solution Approach 1:
The patent implements periodic frame transmission with strategic frame dropping, where not all frames are transmitted at full quality. By periodically selecting which frames to transmit and which to drop or compress more aggressively, the system increases the number of frames that can be transmitted within a given data rate while managing latency through controlled periodicity in the transmission pattern.
Data Source
AI summary
A video compression routine encodes pixels using frame location relationships by using packets with variable length opcode.