Dynamic Frame Rate Adjustment in Medical Image Reconstruction
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Solution Overview
Problem
Current medical image processing systems face challenges in dynamically adjusting reconstruction conditions to accurately capture and display the detailed movements of flexible body parts, such as joints, at high frame rates and resolutions, leading to increased processing time and load.
Innovation Solution
The medical image processing apparatus dynamically adjusts reconstruction conditions based on the positional relation of body parts, using an X-ray CT system to generate image data by changing scanning conditions and frame rates, allowing for real-time analysis and display of detailed movements by synchronizing image acquisition and processing with the movement of the subject.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the frame rate and resolution are increased to observe detailed movements, then the observation precision is improved, but the processing load increases and processing time is prolonged
Solution Approach 1:
The patent applies dynamics by making the frame rate adjustable based on the movement speed of the observed body part. The system dynamically changes the frame rate from a first rate during slow movement phases to a second rate during rapid movement phases, allowing the observation precision to adapt to the actual movement characteristics rather than using a fixed high frame rate throughout, thus reducing unnecessary processing time during slow phases.
Solution Approach 2:
The patent changes the parameter of frame rate based on the positional relation between body parts. When the positional relation indicates rapid movement, the system switches to a higher frame rate (second rate); when movement is slow, it uses a lower frame rate (first rate). This parameter change allows the system to maintain observation precision when needed while reducing processing time when high precision is not required.
2Measurement precision
If the frame rate is increased to capture rapid movements, then the measurement precision is improved, but the processing load increases
Solution Approach 1:
The system dynamically adjusts the frame rate based on real-time analysis of body part movements. During rapid movement phases, the frame rate is increased to capture detailed movements with high measurement precision. During slow movement phases, the frame rate is reduced to lower the processing load. This dynamic adjustment ensures that high processing load is applied only when high measurement precision is actually needed.
Solution Approach 2:
The patent changes the frame rate parameter according to the movement characteristics detected by the position relation analysis. When rapid movement is detected, the frame rate parameter is increased to improve measurement precision. When slow movement is detected, the frame rate parameter is decreased to reduce processing load. This conditional parameter change optimizes the balance between measurement precision and processing load.
3Adaptability or versatility
If the reconstruction conditions are changed to match absolute positions, then the adaptability is improved, but the processing time increases
Solution Approach 1:
The patent applies preliminary action by pre-defining multiple reconstruction conditions corresponding to different absolute positions and movement speeds. The system analyzes the positional relation between body parts to determine which pre-defined reconstruction condition should be applied, avoiding the need to perform complex real-time reconstruction condition generation. This preliminary preparation of reconstruction conditions allows for quick selection and application, reducing processing time while maintaining adaptability to different movement scenarios.
Data Source
AI summary
The medical image processing apparatus according to the embodiment comprises a photographing unit that scans the flexible sites of the living body including the plurality of components and obtains the projected data, a reconstruction processing unit that carries out reconstruction processing on the projected data and generated first image data of the plurality of timing points of the flexible sites, and an analyzing unit that compares the first image data of the plurality of timing points and the second image data showing the flexible sites, thereby specifying the data with the timing point shown in the second image data from among the first image data of the plurality of timing points.