Dynamic Image Analysis Apparatus for Radiographic Frame Extraction
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Solution Overview
Problem
Current radiographic imaging systems require significant time and skill to capture images of specific detection targets, as these targets may only be visible in certain imaging directions and can be obscured by the subject's position or movement, leading to incomplete detection.
Innovation Solution
A dynamic analysis system and apparatus that generate and analyze radiographic moving images to extract specific frames showing detection targets, using a radiation generator and detector to capture images from multiple angles and positions, and a processor to analyze and highlight these frames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a rotating mechanism is used to image the subject in multiple directions, then the detection target can be captured from different angles, but the imaging time is extended and operator skill is required to determine optimal imaging directions
Solution Approach 1:
The system performs preliminary analysis on the captured moving image to identify frames where detection targets are visible, before presenting these frames to the operator. This preliminary filtering action eliminates the need for operators to manually determine optimal imaging directions, reducing both imaging time and skill requirements while maintaining the ability to capture targets from multiple angles
2Adaptability or versatility
If multiple radiographic images are captured while rotating the X-ray tube and detector, then detection targets become visible from different directions, but the complexity of the apparatus increases
Solution Approach 1:
The system introduces an image processing unit as an intermediary that analyzes the captured moving image and identifies frames containing detection targets. This intermediary component processes the raw image data to extract useful information, maintaining the rotating mechanism's imaging capability while reducing the overall system complexity by automating the target detection process rather than requiring complex mechanical positioning systems
3Adaptability or versatility
If the subject's position or joint bending state changes, then the detection target may become invisible, but this cannot be controlled with traditional rotating imaging apparatus
Solution Approach 1:
The system continuously captures a moving image sequence, ensuring that the detection process is ongoing throughout the subject's natural movements. By analyzing multiple frames across time, the system ensures that detection targets remain visible even when the subject's position or joint bending state changes, maintaining detection reliability without requiring precise control of subject posture
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
Enables efficient detection of specific targets by automatically extracting frames that show the detection target, reducing reliance on operator skill and improving detection accuracy for targets visible only under specific conditions.
Implementation Method 1
the subject is placed between an X-ray tube and an X-ray detector
Implementation Method 2
an X-ray tube and an X-ray detector that can be rotated around the subject
Data Source
AI summary
A non-transitory computer-readable storage medium stores a program that causes a computer to perform an obtaining process, an analyzing process, and an extracting process. In the obtaining process, the computer obtains a radiographic moving image showing a motion of a specific part of an examinee. In the analyzing process, the computer analyzes the radiographic moving image obtained in the obtaining process. In the extracting process, the computer extracts, among frames constituting the radiographic moving image, a specific frame that visibly shows a detection target in the specific part, based on a result of analyzing a dynamic state of the specific part in the analyzing process.