Ophthalmologic Apparatus Retinal Image Continuity
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Solution Overview
Problem
Existing ophthalmologic apparatuses face challenges in capturing high-magnification images of the retina with sufficient continuity and resolution due to aberrations and involuntary eye movements, leading to incomplete or unanalyzable image composites when trying to observe retinal structures and lesions.
Innovation Solution
An ophthalmologic apparatus that determines optimal photographing conditions based on the continuity of images captured at different positions, including relative position, luminance characteristics, and image features, to improve the continuity and completeness of high-magnification image composites, and selectively re-captures images to ensure comprehensive coverage without unnecessary repetition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If high-magnification images are captured to observe visual cells and measure density distribution, then resolution is improved, but the imaging target region becomes larger requiring more capture positions
Solution Approach 1:
The system performs preliminary assessment of captured images to determine whether re-capture is necessary, and proactively re-captures images at positions identified as insufficient before final composite generation, preventing incomplete coverage
Solution Approach 2:
The system evaluates the continuity and quality of captured images, identifies insufficient regions, and uses this feedback to selectively re-capture only the necessary positions, optimizing the balance between resolution and capture time
2Stability of the object's composition
If images are re-captured to ensure complete coverage, then continuity of image composite is improved, but capture time increases
Solution Approach 1:
The system performs partial re-capture only at positions identified as insufficient rather than re-capturing all positions, achieving adequate continuity without excessive time loss
Solution Approach 2:
The system assesses image continuity before final composite generation and proactively re-captures only the necessary positions, preventing incomplete coverage while minimizing time loss
3Area of stationary object
If conventional techniques capture multiple high-magnification images at different positions, then coverage of imaging target region is improved, but gaps remain in the image composite
Solution Approach 1:
The system evaluates the continuity and quality of captured images, identifies specific positions that are insufficient or have gaps, and uses this feedback to selectively re-capture only those positions, ensuring complete and continuous coverage
Solution Approach 2:
The system performs preliminary assessment of captured images to determine whether re-capture is necessary, and proactively re-captures images at positions identified as insufficient before final composite generation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus ensures high-quality, continuous image composites with reduced capture time by identifying and re-capturing insufficient regions, providing comprehensive analysis of retinal structures and lesions with improved resolution and continuity.
Implementation Method 1
The SLO apparatus can perform raster scanning of an eye fundus with laser (i.e., measurement light) and can acquire high-resolution and high-speed plane images based on the intensity of return light
Implementation Method 2
an adaptive optics SLO apparatus can be configured to include a wavefront sensor capable of measuring the aberration of an examinee's eye in real time
Implementation Method 3
a wavefront correcting device capable of correcting the aberration of measurement light or return light occurring in the examinee's eye
Data Source
AI summary
An ophthalmologic apparatus acquires a plurality of images by photographing a plurality of different regions of an eye at different times to generate one image by using the acquired plurality of images. The ophthalmologic apparatus includes a determination unit configured to determine, in the plurality of regions, at least one region that does not include any region actually photographed as the plurality of images, and a control unit configured to control the ophthalmologic apparatus in such a way as to capture an image of the determined region of the eye.