Medical Scanogram Range Display With Thresholded Line Updates
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Solution Overview
Problem
Existing medical image capturing technologies, such as CT and MRI devices, suffer from display shake during scanogram capturing due to the superimposition of lines indicating the capturing range, which is not adequately addressed in current technologies.
Innovation Solution
An information processing apparatus that continuously acquires image information and controls the display of lines indicating the capturing range by comparing the position of the lines at the current time with those from the most recent past, exceeding a threshold value to suppress display shake.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If lines indicating capturing range are displayed by being superimposed on subject image in real time, then operator can check capturing range while following subject movement, but display shake occurs in displayed image
Solution Approach 1:
The patent applies dynamics by making the line display adaptive rather than static. The system dynamically adjusts whether to display lines based on real-time comparison of line positions between current and previous frames. When line positions change significantly (exceeding threshold), lines are displayed to show updating capturing range; when changes are minimal, lines are suppressed to eliminate shake. This dynamic adaptation resolves the contradiction between real-time feedback and display stability.
Solution Approach 2:
The patent changes the display parameter (visibility of lines) based on the magnitude of position changes. By introducing a threshold parameter for line position difference, the system transforms the display state from always-visible to conditionally-visible. This parameter-based control allows the system to maintain line visibility when capturing range changes significantly while suppressing display when changes are negligible, thereby eliminating shake while preserving operational utility.
2Loss of information
If lines are displayed continuously to show capturing range updates, then real-time feedback is provided, but display shake increases due to frequent updates
Solution Approach 1:
The patent applies partial action by selectively displaying lines only when necessary. Instead of continuous display that causes shake, the system performs partial display updates based on whether line position changes exceed a threshold. This partial updating strategy maintains essential real-time feedback information while avoiding excessive updates that would manifest as display shake, thus resolving the contradiction between information completeness and display stability.
Data Source
AI summary
An information processing apparatus includes a display controller that continuously acquires image information obtained by optically capturing a subject in a decubitus state on a bed while performing control to display a first line in a case where a difference between a position of the first line corresponding to a position of a predetermined part of the subject in an image indicated by the image information at a current point in time and a position of a second line corresponding to a position of the above-described predetermined part of the subject in an image indicated by the image information in a most recent past exceeds a predetermined threshold value.