Ophthalmic Display Device for Multi-Depth OCT Imaging
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Solution Overview
Problem
Conventional ophthalmologic diagnostic imaging techniques face difficulties in allowing users to easily and comprehensively grasp the states of the subject's eye at various depth positions, particularly in OCT imaging, where observing multiple images sequentially or as a list makes it hard to understand the positional relationships and comprehensive distribution of sites of interest along the depth direction.
Innovation Solution
An ophthalmologic image display device and imaging device that includes a storage device, image processor, and display controller, which stores and processes three-dimensional data sets from OCT scans to form B-mode images, multiple front images, and composite front images, displaying them with distinguishable color information and slice area information to facilitate easy comprehension of the eye's states at various depths.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple front images are displayed one by one while changing depth positions, then the user can observe sites of interest at various depth positions, but it becomes difficult to comprehensively grasp the states of sites of interest at various depth positions
Solution Approach 1:
The patent transitions from displaying images sequentially in time to displaying multiple front images simultaneously in space on a single screen. This spatial arrangement allows users to comprehensively grasp states at various depth positions without losing information, while maintaining ease of observation through organized presentation.
Solution Approach 2:
The patent divides the display area into multiple regions, with each region showing a different front image at a specific depth position. This segmentation allows simultaneous presentation of multiple depth information while maintaining clear organization and ease of observation for each site of interest.
2Loss of information
If multiple front images are displayed as a list, then the user can grasp the states of individual sites of interest at multiple depth positions, but it becomes impossible to easily grasp which areas of the subject's eye individual front images represent and their positional relationships
Solution Approach 1:
The patent adds spatial dimension to the display by arranging multiple front images in different regions of the screen rather than sequentially in a list. This spatial arrangement enables users to easily grasp positional relationships and which areas of the subject's eye each image represents, while preserving comprehensive information about individual sites.
Solution Approach 2:
The patent assigns specific depth position information and area correspondence to each displayed front image, allowing users to understand both the individual site states and their spatial relationships. Each image region provides localized depth information while the overall arrangement shows comprehensive positional relationships.
3Device complexity
If conventional sequential or list display methods are used, then the display system remains simple, but it becomes difficult to grasp the comprehensive distribution of sites of interest along the depth direction
Solution Approach 1:
The patent segments the display into multiple regions, each showing a front image at a different depth position. This segmentation enables comprehensive visualization of site distribution along the depth direction while maintaining a relatively simple display system structure.
Solution Approach 2:
The patent utilizes the two-dimensional screen space to display multiple depth information simultaneously, adding a depth dimension to the visual presentation without significantly increasing system complexity. This allows comprehensive grasp of site distribution along the depth direction.
Data Source
AI summary
A storage device of an ophthalmologic image display device of an embodiment stores a three dimensional data set acquired by scanning a subject's eye using OCT. An image processor forms, based on the three dimensional data set, a B-mode image, front images, and composite front image obtained from the front images. A display controller displays the B-mode image, front images and composite front image in a predetermined layout. The display controller displays distinguishment color information for distinguishment between the front images by colors and slice area information that indicates a partial region of the B-mode image corresponding to a slice area of the three dimensional data set represented by each front image in a color according to the distinguishment color information, and displays a composite front image based on the front images, each of which is expressed by a color according to the distinguishment color information.