Image Processing Device Blank Area Analysis Viewpoint Transformation
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Solution Overview
Problem
Existing image processing devices face a challenge in maintaining image quality when changing viewpoints, as they often generate blank areas during projective transformations, which can result in low-quality images due to large blank areas that are not predictable before the transformation occurs.
Innovation Solution
An image processing device that includes a data obtainment unit, a viewpoint transformation unit, and a blank area analysis unit to generate and analyze transformed images from different viewpoints, providing blank information to prevent the selection and display of low-quality images by indicating the size of blank areas, and optionally displaying a blank map to aid user selection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If projective transformation is performed to generate images from different viewpoints, then viewpoint flexibility is improved, but image quality deteriorates due to blank areas
Solution Approach 1:
The patent performs preliminary analysis of blank areas before displaying transformed images. The blank area analysis unit calculates the size of blank areas in advance for each transformed image, allowing users to predict image quality before selection. This preliminary action prevents users from selecting low-quality images with large blank areas, thereby resolving the contradiction between viewpoint flexibility and image quality.
2Productivity
If transformed images are generated without analysis, then processing speed is improved, but image quality control deteriorates
Solution Approach 1:
The patent introduces a preliminary blank area analysis step that is computationally efficient. The analysis unit calculates blank area sizes using the transformation parameters and viewpoint information, which is a simple geometric calculation rather than full image processing. This allows quick quality assessment before actual image generation or selection, maintaining processing speed while enabling image quality control.
Data Source
AI summary
An image processing device includes: a data obtainment unit which obtains an input image captured from a first viewpoint, and depth information indicating a depth of a subject in the input image; a viewpoint transformation unit which generates, using the depth information, a plurality of first transformed images each of which is an image of the input image seen from a corresponding one of second viewpoints different from the first viewpoint; and a blank area analysis unit that analyzes a blank area which is included in each of the first transformed images and includes a pixel which does not have a corresponding pixel in the input image, and generate blank information which indicates, for each of the second viewpoints, a size of the blank area in the first transformed image corresponding to the second viewpoint.