CT Scanning Bed Height Alignment Using Plain Film Images
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Solution Overview
Problem
CT scanning devices face challenges in achieving accurate alignment of the center of the to-be-detected part of the target scanning object with the scanning center, leading to uneven scanning doses and reduced image quality due to manual adjustments affected by human error.
Innovation Solution
A method and apparatus that utilize plain film information to determine a target bed height, adjust the scanning parameters, and perform subsequent operations to align the scanning center with the object center, improving image quality and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual positioning adjustment is used to align the scanning center with the object center, then the alignment can be achieved, but the accuracy and efficiency are reduced due to human factors
Solution Approach 1:
The patent replaces the manual mechanical positioning system with an automated image processing system. The computer automatically calculates the object center from plain film images and sends positioning instructions to the scanning device, eliminating manual measurement and adjustment operations. This substitution of mechanical/manual systems with automated computational systems resolves the contradiction by providing both high precision (through algorithmic calculation) and high efficiency (through automation).
Solution Approach 2:
The system enables self-positioning by automatically determining the object center from the plain film images without requiring operator intervention. The scanning device receives automated positioning instructions based on image analysis, allowing the system to self-correct and self-align, thereby achieving both accurate alignment and operational efficiency simultaneously.
2Productivity
If the object center is misaligned with the scanning center, then the scanning process is simpler, but the scanning dose becomes uneven and image quality deteriorates
Solution Approach 1:
The patent performs preliminary positioning calculations before the actual scanning process. By analyzing plain film images and determining the object center in advance, the system prepares accurate positioning data that ensures proper alignment during scanning. This preliminary action prevents misalignment issues before they occur, maintaining both scanning efficiency and image quality.
Solution Approach 2:
The system uses plain film images as feedback to determine object position and calculate appropriate positioning adjustments. This feedback mechanism allows the system to adapt to the actual object position and make precise corrections, ensuring that the scanning center aligns with the object center while maintaining efficient scanning operations and high image quality.
Data Source
AI summary
The present disclosure discloses a scanning method and apparatus, a storage medium, and a computer device. The method includes: obtaining plain film information of a target scanning object, and determining a target bed height based on the plain film information; adjusting the plain film information based on the target bed height to obtain target plain film information; and performing a subsequent operation based on the target plain film information. The present disclosure helps to quickly determine the target bed height, adjust the plain film information based on the target bed height, and perform the subsequent operation based on adjusted plain film information. Thus, a quality of a scanned image is improved while an adjustment efficiency is increased, thereby greatly improving user experience.