HDR Still Image Composition via Dual Processing Paths
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Solution Overview
Problem
Recent imaging apparatuses lack the ability to effectively generate and record High Dynamic Range (HDR) still images during HDR moving image photography, as they primarily focus on processing moving images, resulting in suboptimal still image quality and expression.
Innovation Solution
The imaging apparatus includes an imaging unit that acquires image data groups with different exposure conditions, a first image processor for HDR moving image frame generation, and a second image processor or record processor for distinct composition processing to generate HDR still image data, allowing for different composition techniques tailored to still images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the imaging apparatus uses the same composition processing for both HDR moving images and HDR still images, then the processing complexity is reduced, but the still image quality and expression are suboptimal
Solution Approach 1:
The patent divides the image processing function into separate processing paths: a first image processor for HDR moving images and a second image processor for HDR still images. This segmentation allows each processor to be optimized for its specific function, improving still image quality without requiring the entire system to handle both processing types simultaneously, thus managing complexity through functional separation.
Solution Approach 2:
The patent applies different composition processing methods to different image types: motion-compensated composition for moving images and quality-optimized composition for still images. This local quality approach ensures that each image type receives the most appropriate processing, enhancing still image expression while maintaining moving image performance.
2Adaptability or versatility
If the imaging apparatus processes image data for still images using the same method as moving images, then the device structure is simplified, but the still image expression and adaptability to display devices are limited
Solution Approach 1:
The patent creates a universal image processing system that can adapt to different display devices (TVs and printers) by incorporating multiple processing modes. The second image processor for still images can select between different composition methods based on the target display device, providing versatility without requiring completely separate processing systems for different output formats.
Solution Approach 2:
The patent introduces dynamic adaptability where the imaging apparatus can switch between different composition processing methods based on the intended use and display device. The still image processing can dynamically select between motion-compensated composition and quality-optimized composition, allowing the system to adapt to various display requirements while maintaining a unified device structure.
Data Source
AI summary
An imaging apparatus includes an imaging unit, a first image processor, and a record processor. The imaging unit sequentially acquires image data groups comprising pieces of image data different in exposure conditions to generate HDR moving image frames. The first image processor subjects the pieces of the image data belonging to each of the image data groups to first composition processing, to generate HDR moving image data comprising HDR moving image frames. The record processor is configured to record image data for still images so that the pieces of the image data belonging to each of the image data groups are subjected to second composition processing different from the first composition processing, to generate HDR still image data.