Image Generation Apparatus Viewpoint Quality Control
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Solution Overview
Problem
In linear blending techniques for generating three-dimensional images with motion parallax, the image quality fluctuates when the viewer's viewpoint moves between projector positions, resulting in unpleasant quality variations.
Innovation Solution
An image generation apparatus that determines synthesis ratios using observation and intermediate viewpoint images to generate output images, minimizing image quality variations by calculating and comparing image quality evaluation indices across different viewpoints.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If linear blending is used to project three-dimensional images with fewer projectors, then device complexity is reduced, but image quality fluctuates when viewpoint moves between projectors
Solution Approach 1:
The patent calculates synthesis ratios in advance based on evaluation indices before actual image projection. By pre-computing the optimal blending parameters for different viewpoint positions, the system prepares compensation data that will be applied when the viewer moves, thus preventing image quality fluctuation rather than reacting to it after occurrence
Solution Approach 2:
The patent introduces a feedback mechanism where evaluation indices are calculated to assess image quality at different viewpoints, and synthesis ratios are adjusted based on this evaluation. The system continuously monitors the quality metric and modifies the blending parameters to maintain consistent image quality across varying viewpoint positions
2Reliability
If synthesis ratio is adjusted to improve image quality at intermediate viewpoints, then image quality consistency improves, but calculation complexity increases
Solution Approach 1:
The patent transforms the complex image quality optimization problem into a parameter optimization problem by defining evaluation indices and synthesis ratios as adjustable parameters. Instead of optimizing the entire image rendering pipeline, the system focuses on tuning these specific parameters to achieve quality consistency, thereby reducing overall calculation complexity while maintaining reliability
Data Source
AI summary
Provided is an image generation technology capable of suppressing unpleasantness associated with fluctuation in image quality caused by the viewer's viewpoint movement. A synthesis ratio determination unit of an image generation apparatus includes: an image quality evaluation index calculation unit that generates a synthesis image J1 from an observation viewpoint image I1 and an intermediate viewpoint image I2, and a synthesis image J3 from an observation viewpoint image I3 and an intermediate viewpoint image I2, for a plurality of synthesis ratios, calculates an image quality evaluation index in an observation viewpoint V1, an image quality evaluation index in an intermediate viewpoint V2, and an image quality evaluation index in an observation viewpoint V3 by using the synthesis images J1 and J3, and calculates a variation v of an image quality evaluation index by using the image quality evaluation index in the observation viewpoint V1, the image quality evaluation index in the intermediate viewpoint V2, and the image quality evaluation index in the observation viewpoint V3; and an image quality evaluation index comparison unit that determines a synthesis ratio A based on the variation v of the image quality evaluation index.