Overlay Image Error Detection Using Region-Specific Check Codes
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing video processing devices struggle with error detection in composite images and split images, as they cannot obtain expected error code values for combined or split images, leading to inadequate error detection.
Innovation Solution
A circuit device with an overlay processing circuit that performs overlay processing on first and second input image data and outputs the result, and an error detection circuit that calculates error code values for specific areas of the output image data and compares them with expected values for error detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If overlay processing is performed to combine images, then image composition capability is improved, but error detection capability deteriorates because expected error code values cannot be obtained for combined images
Solution Approach 1:
The patent divides the composite image into multiple regions (first area with overlay, second area without overlay) and performs separate error detection on each region. This segmentation allows expected error code values to be obtained and compared for each region independently, resolving the contradiction between image composition capability and error detection capability.
Solution Approach 2:
The patent performs error detection on partial regions of the composite image rather than requiring complete coverage. By detecting errors in the first area (overlay region) and second area (non-overlay region) separately, the system achieves sufficient error detection without needing to process the entire composite image as a single unit, thus maintaining both composition and detection capabilities.
2Adaptability or versatility
If the input image is split into multiple images, then display flexibility is improved, but error detection capability deteriorates because expected error code values cannot be obtained for split images
Solution Approach 1:
The patent applies segmentation by dividing the split images into distinct areas and performing separate error detection on each. This allows expected error code values to be maintained and compared for each split image region, preserving error detection capability while enabling display flexibility through image splitting.
3Reliability
If comprehensive error detection is performed on the entire composite image, then error detection coverage is improved, but device complexity increases
Solution Approach 1:
The patent reduces processing complexity by segmenting the composite image into distinct areas and performing error detection on each area separately. This modular approach achieves comprehensive error detection coverage while avoiding the complexity of processing the entire composite image as a single unit, as each area can be processed independently with its own expected error code values.
Data Source
AI summary
A circuit device includes an overlay processing circuit and an error detection circuit. The overlay processing circuit performs overlay processing of first input image data on a first area of second input image data and outputs a result of the overlay processing as output image data. The error detection circuit calculates a first error code value corresponding to image data of the first area of the output image data and a second error code value corresponding to image data of a second area not overlapping the first area of the output image data. The error detection circuit performs error detection on the output image data by comparing the first error code value with a first expected value and comparing the second error code value with a second expected value.