Image Relay Apparatus Bypassing Unnecessary Decompression
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Solution Overview
Problem
In image relay systems, the existing screen transfer technique involves unnecessary decompression, drawing, and recompression processes when compressed image data does not need to be changed, leading to increased processing load and inefficiency.
Innovation Solution
An image relay apparatus determines whether compressed image data needs to be changed based on layout data, using a first path that avoids decompression and recompression if no changes are required, thereby reducing processing load by transferring either the original compressed data or recompressed data only when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the image relay apparatus always performs decompression, drawing, and recompression processes on received compressed image data, then the image data can be properly processed and transferred, but the processing load increases unnecessarily when changes are not required
Solution Approach 1:
The patent applies preliminary action by determining whether compressed image data needs to be changed before performing decompression, drawing, and recompression processes. The determination unit checks if changes are required in advance, and only proceeds with the full processing chain when necessary. This prevents unnecessary processing while ensuring proper handling when changes are needed, thus resolving the contradiction between reliability and processing efficiency.
2Reliability
If the image relay apparatus performs decompression, drawing, and recompression processes even when not needed, then image data can be transferred, but the processing time increases
Solution Approach 1:
The determination unit performs a preliminary check to assess whether compressed image data requires changes before initiating the decompression, drawing, and recompression sequence. By making this determination in advance, the system avoids unnecessary processing steps when changes are not required, thereby reducing processing time while maintaining reliable image data transfer when changes are actually needed.
3Reliability
If the image relay apparatus processes all compressed image data through decompression and recompression, then data can be transferred to relay destination, but energy consumption increases
Solution Approach 1:
The system performs a preliminary determination to identify whether compressed image data requires changes before committing energy-intensive decompression, drawing, and recompression operations. This advance assessment allows the apparatus to skip unnecessary processing steps, thereby reducing energy consumption while ensuring reliable image relay when changes are actually required.
Data Source
AI summary
According to one embodiment, an image relay apparatus includes a reception unit, a determination unit and a transmission unit. The reception unit receives compressed image data from a relay source apparatus. The determination unit determines whether or not the compressed image data is processable through a first path not involving decompression of the compressed image data, based on data on a relay destination apparatus. The transmission unit transfers, to the relay destination apparatus, either the compressed image data processed through the first path or recompressed image data obtained by processing the compressed image data through a second path involving decompression, drawing, and recompression of the compressed image data.