Automated X-ray Configuration Using Depth Cameras
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Solution Overview
Problem
Traditional X-ray imaging systems rely on manual configuration, which is time-consuming and prone to errors, especially in determining the correct radiation dose and object positioning, due to the harmful nature of X-ray radiation and the complexity of deriving configuration parameters from 2D images or 3D models.
Innovation Solution
The use of depth cameras to obtain depth images for automated configuration of X-ray imaging systems, including activating radiation measurement chambers, determining object size and position, and adjusting the resizing and position configurations without the need for complex 3D modeling, thereby ensuring accurate radiation dosage and efficient imaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual configuration is used to adjust imaging parameters, then the operator can control the X-ray system settings, but the process is time-consuming and prone to errors
Solution Approach 1:
The system automatically performs configuration tasks by detecting the object in the depth image and deriving imaging parameters (field of view, magnification, positioning) without requiring manual operator input. The X-ray system configures itself based on automated object recognition and depth analysis.
Solution Approach 2:
The patent replaces manual mechanical adjustment of imaging parameters with an automated optical/electronic system that uses depth cameras and image processing algorithms to determine configuration settings, eliminating the need for manual collimator adjustment and positioning.
2Ease of operation
If manual configuration is used to determine radiation dose and positioning, then the operator can adjust settings, but errors occur due to lack of clear view of adjustments
Solution Approach 1:
The system uses depth cameras to capture images of the object, processes these images to determine object characteristics, and uses this information to automatically configure imaging parameters. This closed-loop feedback mechanism ensures accurate positioning and dosing by continuously referencing actual object geometry.
Solution Approach 2:
The patent transitions from 2D X-ray images to 3D depth imaging for configuration purposes. The depth camera provides three-dimensional information about object shape and position, enabling more accurate automated configuration than traditional 2D image-based methods.
3Measurement precision
If 3D model composition is used to obtain volume parameters, then accurate object data can be derived, but the operation is processor intensive
Solution Approach 1:
The system extracts only the essential configuration parameters (field of view, magnification, positioning) directly from depth image analysis without performing full 3D model composition. This selective extraction approach obtains necessary volumetric information while avoiding the computational overhead of complete 3D reconstruction.
4Extent of automation
If parameter extraction from 2D images is used, then configuration can be automated, but extraction is not always correct when cameras are at different angles
Solution Approach 1:
The patent replaces 2D image-based parameter extraction with 3D depth imaging. The depth camera captures three-dimensional information that is angle-independent, allowing accurate object measurement and configuration parameter derivation regardless of camera position relative to the X-ray source.
Data Source
AI summary
A method of monitoring a radiation amount received from an X-ray source in an X-ray imaging system for taking an X-ray image of an object includes the steps of obtaining one or more depth images from one or more depth cameras; the one or more depth cameras covering at least an area covered by an X-ray bundle of an X-ray source of the X-ray imaging system; positioning the object against or on a surface including radiation measurement chambers and identifying select radiation measurement chambers underneath the object from the one or more depth images and/or from a single depth image derived from the one or more depth images; and activating the select radiation measurement chambers.