Optical Measurement via Virtual Image Reconstruction
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Solution Overview
Problem
Existing optical characteristics measuring methods struggle to acquire accurate and comprehensive measurement results, particularly in measuring light distribution characteristics, as they often rely on simple intensity measurements at fixed points rather than utilizing the full potential of captured images.
Innovation Solution
The method involves creating virtual images from analysis points located off the plane of the image capturing apparatus's trajectory, using captured images to measure light intensity distribution across various points, allowing for more comprehensive data acquisition and improved accuracy by calculating pixel values and compensating for positional differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If simple intensity measurements at fixed points are used, then the measurement system is simple, but the measurement precision and comprehensiveness are insufficient
Solution Approach 1:
The patent creates virtual images that copy the optical characteristics from captured images at different positions and angles. By generating virtual images from analysis points that are not physically accessible, the system obtains comprehensive light distribution data without requiring physical measurement devices at every location, thus improving measurement precision without proportionally increasing device complexity
Solution Approach 2:
The patent transitions from one-dimensional intensity measurements at fixed points to three-dimensional virtual image reconstruction from multiple viewpoints. By capturing images from multiple positions and angles and reconstructing virtual images in 3D space, the system achieves comprehensive light distribution characteristics that go beyond simple point measurements
2Loss of information
If multiple captured images from different positions are used, then the measurement comprehensiveness improves, but the data processing complexity increases
Solution Approach 1:
The patent segments the light distribution measurement task into multiple discrete captured images taken from different positions and angles. Each image captures a specific viewpoint's information, and the system processes these segmented images separately before integrating them into comprehensive virtual images, making the overall complex task manageable through systematic division
Solution Approach 2:
The patent introduces virtual images as an intermediary representation that bridges the gap between multiple captured images and the final light distribution analysis. The virtual images serve as intermediate data structures that organize and integrate information from multiple viewpoints, simplifying the synthesis process and reducing the complexity of directly processing raw captured images
Data Source
AI summary
An optical characteristics measuring method for measuring optical characteristics of a subject, the optical characteristics measuring method including: a step of acquiring one or more captured images including the subject, using an image capturing apparatus that is located at a predetermined distance from the subject, and is configured to be displaceable relative to the subject, while maintaining the predetermined distance; and a step of creating, based on the one or more captured images thus acquired, a virtual image including the subject and acquired from one or more analysis points each located at a position other than a position on a plane that includes the trajectory of the image capturing apparatus.