Image Signal Processor Channel Allocation for High-Resolution Processing
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Solution Overview
Problem
As the number of cameras and images captured per second increases, existing image processing capabilities face limitations such as frame drop and shutter lag, necessitating enhanced processing efficiency.
Innovation Solution
A device and method that dynamically allocate image signals to different channels based on resolution, using an image sensor to generate signals for low and high resolutions, and an image signal processor to post-process these signals, allowing for efficient processing and preview/display of images without requiring multiple processors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the number of cameras and images captured per second increases, then the image processing capability requirement increases, but frame drop and shutter lag occur due to processing limitations
Solution Approach 1:
The patent divides the image processing system into multiple independent channels (first channel for low-resolution images, second channel for high-resolution images). Each channel has dedicated processing resources, allowing parallel processing of different image types. This segmentation eliminates the bottleneck of single-channel processing, preventing frame drop and shutter lag while handling increased image capture rates.
2Productivity
If multiple processors are used to handle increased image processing requirements, then processing capability improves, but device complexity increases
Solution Approach 1:
The patent implements a universal image signal processor that can handle both low-resolution and high-resolution images through a single multi-functional device. The processor dynamically switches between processing modes based on image resolution, eliminating the need for separate dedicated processors for each resolution type. This reduces device complexity while maintaining high processing capability through efficient resource utilization.
Data Source
AI summary
A device includes an image sensor configured to generate a first signal corresponding to an image having a first resolution in a first mode, a second signal corresponding to an image having a second resolution higher than the first resolution in a second mode. The image sensor is configured to generate frame information regarding a resolution, the first mode and the second mode respectively determined based on a mode signal. The device further includes a channel allocator configured to allocate the first signal and the second signal to different channels, of a plurality of channels, based on the frame information; and an image signal processor (ISP) comprising the plurality of channels, a first channel configured to process the first signal and a second channel configured to process the second signal. The ISP is configured to post-process image data processed by the plurality of channels.