Image Capturing Device Line Buffer Chrominance Data Integration
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Solution Overview
Problem
Conventional image capturing devices require a large number of line buffers to handle luma and chrominance data, leading to increased size and cost, as they do not efficiently integrate chrominance data across adjacent rows.
Innovation Solution
The proposed solution involves an image capturing device with a first preprocessing unit that integrates chrominance data from adjacent rows, reducing data volume, and a second preprocessing unit that generates pre-processed chrominance data, allowing adjacent rows to share integrated chrominance data, thereby reducing the data stored in line buffers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional line buffers are used to handle luma and chrominance data separately, then image data can be buffered and processed, but the device size and cost increase due to requiring more buffers
Solution Approach 1:
The patent merges chrominance data from adjacent rows by integrating them into a shared buffer structure. Instead of maintaining separate line buffers for each row's chrominance data, the system combines chrominance data from multiple rows into a single integrated buffer, reducing the total number of buffers needed while maintaining image processing capability
Solution Approach 2:
The integrated chrominance buffer serves multiple rows simultaneously, making it a multi-functional buffer that handles chrominance data for more than one row. This universal buffer approach eliminates the need for dedicated line buffers for each row's chrominance data, reducing overall device complexity
2Ease of operation
If chrominance data for each row is stored separately in line buffers, then row-specific processing is enabled, but the buffered data volume increases by 25%
Solution Approach 1:
The patent combines chrominance data from adjacent rows into a single integrated buffer, reducing the total data volume by 25%. This merging approach maintains the ability to perform row-specific processing by selectively accessing chrominance data from the integrated buffer for each row when needed
3Adaptability or versatility
If separate line buffers are allocated for luma and chrominance data, then data processing flexibility is maintained, but device size and cost increase
Solution Approach 1:
The patent merges the buffering functions by implementing a shared buffer structure that handles both luma and chrominance data. The integrated chrominance buffer works in conjunction with luma buffers to provide processing flexibility while reducing overall device size through shared memory resources
Solution Approach 2:
The buffer system is designed with multi-functionality where the integrated chrominance buffer serves multiple purposes across different rows. This universal approach maintains processing flexibility for various image operations while reducing the total memory capacity required, thereby reducing device size
Data Source
AI summary
An image capturing device and the image preprocessing method thereof. The image preprocessing technique receives digital image consisting of luma data and chrominance data, integrates the chrominance data of adjacent rows to generate integrated chrominance data, buffers the luma data and the integrated chrominance data in a group of line buffers, and generates pre-processed chrominance data by making adjacent rows share the same integrated chrominance data. The luma data from the line buffer group form an image with the pre-processed chrominance. The image may be displayed on a display.