CT Imaging System Non-Uniform Rotation Angle Feedback
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Solution Overview
Problem
CT images reconstructed by existing CT inspection systems during non-uniform rotation scanning are deformed, leading to poor accuracy in detection results.
Innovation Solution
A CT inspection system that includes a scanning device rotating at non-uniform speed, a rotation monitoring device to detect and signal preset angles, and an imaging device that processes effective detection data to generate accurate CT images by recognizing data bound with high-level signals, thereby reducing image deformation and improving detection accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the scanning device rotates at non-uniform speed during scanning, then the scanning efficiency is improved, but the CT image becomes deformed and detection accuracy deteriorates
Solution Approach 1:
The patent applies feedback by using a rotation monitoring device to detect the rotating angle of the scanning device and send high level signals to the imaging device at preset angles. This feedback mechanism allows the system to track the actual non-uniform rotation and use this information to correct image reconstruction, thereby maintaining image accuracy while allowing non-uniform rotation for improved scanning efficiency.
Solution Approach 2:
The patent changes the parameter of rotation speed from uniform to non-uniform to improve scanning efficiency. By allowing the rotation speed to vary, the system can optimize scanning performance while the feedback mechanism ensures that image quality is maintained through parameter-based correction during reconstruction.
2Adaptability or versatility
If the scanning device rotates at non-uniform speed, then the scanning process becomes more flexible, but the reliability of detection results deteriorates
Solution Approach 1:
The rotation monitoring device provides real-time feedback on the scanning device's angular position, enabling the system to adapt to non-uniform rotation while maintaining reliable detection results. The feedback signals allow the imaging device to compensate for speed variations, ensuring detection reliability despite increased scanning flexibility.
3Quantity of substance
If all detection data is used for image reconstruction, then the data utilization is maximized, but image deformation increases
Solution Approach 1:
The patent extracts only the effective detection data that corresponds to preset rotation angles identified by high level signals from the rotation monitoring device. By selecting and using only this subset of data for image reconstruction, the system avoids using data that would contribute to image deformation, thereby maintaining image quality while still utilizing a significant portion of the collected data.
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 system effectively reduces image deformation and enhances the accuracy of detection results by using a rotation monitoring device to send signals at preset angles, allowing the imaging device to reconstruct CT images based on accurate detection data, even during non-uniform rotation scanning.
Implementation Method 1
a radiation source which is configured to generate high-energy X rays
Implementation Method 2
a detection device which is configured to receive X rays penetrating through the object to be detected
Data Source
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AI summary
The present disclosure relates to the technical field of CT detection, in particular to a CT inspection system and a CT imaging method. The CT inspection system provided by the present disclosure includes a scanning device and an imaging device, wherein the scanning device having a radioactive source device and a detection device is configured to rotate at a non-uniform speed in at least partial process of scanning an object to be detected; and the imaging device generates a CT image based on effective detection data, wherein the effective detection data refer to data acquired each time the detection device rotates by a preset angle. In the present disclosure, the imaging device of the CT inspection system generates a CT image based on data acquired each time the detection device rotates by a preset angle, which, compared with traditional image collection solutions, can effectively reduce image deformation and improve accuracy of detection results.