Streamed Image Data Processing with Spatial Resolution Adjustment
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Solution Overview
Problem
Existing image signal processing techniques are memory and processor intensive, leading to increased power consumption, especially in power-limited devices such as battery-operated devices, when processing high-resolution images.
Innovation Solution
A method and device for processing streamed image data by identifying regions of interest, performing first and second spatial processing to adjust the spatial resolution based on the region of interest, and applying image signal processing to generate processed image data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If image signal processing is performed on high-resolution images, then image quality is improved, but power consumption increases
Solution Approach 1:
The patent applies different processing resolutions to different regions of the image. Regions of interest are processed at full resolution to maintain high image quality, while non-critical regions are processed at reduced resolution. This local differentiation allows the system to preserve image quality where needed while reducing overall power consumption by avoiding full-resolution processing of the entire image.
2Measurement precision
If image signal processing is performed on high-resolution images, then processing accuracy is improved, but processor intensity increases
Solution Approach 1:
The patent implements spatially-varying processing resolution where only specific regions of interest undergo full-resolution image signal processing. Non-critical regions are processed at lower resolution or skipped entirely. This approach maintains processing accuracy for important image features while significantly reducing the overall computational burden and processor intensity.
3Measurement precision
If image signal processing is performed on high-resolution images, then processing completeness is improved, but memory intensity increases
Solution Approach 1:
The patent reduces memory intensity by processing different image regions at different resolutions. By applying full-resolution processing only to regions of interest and lower-resolution processing to other areas, the system decreases the total volume of data that must be stored in memory during processing, thereby reducing memory intensity while maintaining processing completeness for critical regions.
Data Source
AI summary
A method of processing streamed image data is provided. A stream of image data is obtained along with information about the location of one or more region of interest in the image data. The method performs a first spatial processing to change a spatial resolution of at least a portion of the streamed image data in dependence upon the location of the region of interest to generate a first processed stream. Image signal processing is performed on the first processed stream to generate a stream of processed image data. A second spatial processing is then performed on the stream of processed image data to generate a second processed stream of image data.