3D Touch Panel Distance Measurement for X-Ray Imaging
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Solution Overview
Problem
Manual measurement of touch panel to object distance (TOD) in X-ray imaging is cumbersome, time-consuming, and prone to deviations, especially when observing internal objects like the spine and femur, affecting image quality and dose control.
Innovation Solution
A method and apparatus that utilize a three-dimensional image of the to-be-detected subject to automatically determine TOD by calculating the source to image distance (SID), touch panel to detector distance (TDD), and the distance between a light source and a predetermined key point on the subject's surface, incorporating artificial intelligence and correction factors for precise calculation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual measurement of TOD is performed using a ruler, then the measurement process is simple to implement, but it is time-consuming and prone to deviations
Solution Approach 1:
The patent replaces the mechanical manual measurement system with an automated optical-electronic system. A camera captures images of the subject and measurement scale, and a computer automatically processes these images to calculate TOD, eliminating the need for manual ruler measurement and significantly reducing both time and human error.
Solution Approach 2:
The system enables self-service measurement where the measurement process automatically determines TOD without requiring staff intervention. The camera and computer work together to automatically capture, process, and calculate the distance, making the system self-sufficient and eliminating manual operation time.
2Ease of operation
If manual measurement of TOD is performed, then the equipment required is simple, but the operation is cumbersome and complex for internal objects
Solution Approach 1:
The patent creates a universal measurement system that can measure TOD for various types of objects (external and internal) using the same automated process. The camera and computer system handles different measurement scenarios uniformly, making the operation simple despite the increased device complexity, as staff only need to initiate the automated process rather than perform different manual measurement techniques.
3Productivity
If automated determination using three-dimensional image and AI is implemented, then processing efficiency is enhanced and calculation precision is improved, but the device complexity increases
Solution Approach 1:
The patent replaces manual measurement operations with an automated optical-electronic-computational system. The camera captures three-dimensional image data, AI algorithms automatically identify key points and calculate distances, and the computer processes all measurements, achieving high productivity despite increased device complexity through the integration of multiple technological components.
Data Source
AI summary
The present disclosure is directed to a method and apparatus for determining a touch panel to object distance (TOD) in X-ray imaging. This includes obtaining a three-dimensional image of a to-be-detected subject that includes an object; determining a source to image distance (SID) and a touch panel to detector distance (TDD); determining, based on the three-dimensional image, a distance between a light source of a camera assembly that captures the three-dimensional image and a predetermined key point located on a surface of the to-be-detected subject, where the predetermined key point corresponds to an X-ray imaging protocol; and determining the TOD based on the SID, the TDD, and the distance between the light source and the predetermined key point. The implementations of the present disclosure implement automatic measurement of a TOD, reduce the complexity, and further improve the accuracy of the TOD.