Adaptive Image Transmission Bus Compression Feedback Loop
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Solution Overview
Problem
The increasing data amount of high-resolution and high-frame-rate image data in image capturing systems puts pressure on the bandwidth of transmission buses, leading to higher costs and potential image degradation due to existing compression methods that halve pixel data bits when difference values exceed a threshold.
Innovation Solution
An image transmission system where the receiving side adaptively sets compression parameters for the transmitting side, allowing for efficient compression and decompression of pixel blocks, reducing the load on the transmission bus by dynamically adjusting quantization coefficients and encoding parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If compression encoding is performed on image data before bus interface to reduce data amount, then bandwidth pressure on transmission bus is reduced, but image degradation occurs when difference values exceed threshold
Solution Approach 1:
The patent implements dynamic adjustment of compression parameters based on local image characteristics. The receiving side analyzes decompression results and feeds back optimal compression parameters to the transmitting side, enabling adaptive compression that maintains image quality in high-contrast regions while achieving compression in smooth regions.
Solution Approach 2:
The system changes compression parameters (quantization coefficients, encoding strength) based on local image content analysis. By adjusting these parameters dynamically according to image characteristics, the system achieves efficient compression without significant image degradation.
2Measurement precision
If higher resolution and frame rate are used to increase image data amount, then image quality and capture performance are improved, but bandwidth pressure on transmission bus increases
Solution Approach 1:
The system dynamically adjusts compression parameters based on the actual image content and resolution requirements. By adapting compression strength to local image characteristics, the system maintains high resolution output while reducing the data amount transmitted over the bus.
Solution Approach 2:
The adaptive feedback mechanism allows the system to dynamically optimize compression parameters for different image content and resolution requirements, enabling efficient transmission of high-resolution data without overwhelming the bus bandwidth.
3Productivity
If compression parameter adjustment is implemented adaptively between transmitting and receiving sides, then transmission efficiency is improved, but system complexity increases
Solution Approach 1:
The patent implements a feedback mechanism where the receiving side analyzes decompression results and transmits optimal compression parameters back to the transmitting side. This feedback loop enables adaptive optimization of compression efficiency while distributing the complexity between transmitting and receiving components.
Solution Approach 2:
The system segments the compression parameter adjustment process into separate functions at the transmitting and receiving sides. The receiving side performs analysis and parameter determination, while the transmitting side applies the parameters, dividing the complexity across system components.
Data Source
AI summary
A system includes an image transmitting unit and an image receiving unit. The image transmitting unit has a compression unit for compressing, in accordance with a provided compression parameter, a pixel block in image data, and a first transmitting unit for transmitting the compressed data to an image receiving unit in the system. The image receiving unit has a receiving unit for receiving the compressed data, a decompression unit for decompressing the received compressed data, a determination unit for determining a compression parameter based on the result of the decompression, and a second transmitting unit for transmitting the determined compression parameter to the image transmitting unit. The compression unit compresses an untransmitted second pixel block in the image data to be compressed in accordance with the compression parameter transmitted from the second transmitting unit.