X-ray Diagnostic Apparatus Stereoscopic Imaging for Dynamic Subjects
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Solution Overview
Problem
Conventional X-ray diagnostic systems face challenges in obtaining stereoscopic views of dynamic parts, particularly when the subject moves, as it is difficult to acquire parallax images with shifted viewpoints due to the subject's movement, affecting the accuracy and clarity of depth perception in medical imaging.
Innovation Solution
The X-ray diagnostic apparatus acquires and displays stereoscopic images by processing circuitry that calculates the moving distance of a region of interest between medical images derived from a parallax angle, allowing for the display of parallax images with shifted viewpoints, even when the subject is dynamic, using a configuration that includes a high voltage generator, X-ray tube, collimator, C-arm, and image processing circuitry to control and generate images for a 3D display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional X-ray systems acquire images of dynamic parts, then the subject's movement occurs during imaging, but this causes difficulty in acquiring accurate parallax images with shifted viewpoints
Solution Approach 1:
The system performs preliminary actions by acquiring multiple images at different positions before the subject moves significantly, then calculates the moving distance and synthesizes parallax images based on these pre-acquired images, ensuring accurate depth perception even for dynamic parts
Solution Approach 2:
The system adapts to dynamic subjects by calculating the moving distance of the region of interest between acquired images and adjusting the parallax image synthesis accordingly, allowing the imaging system to follow and capture moving structures accurately
2Loss of information
If the system acquires multiple images to create stereoscopic views, then depth information is improved, but the complexity of image processing and display increases
Solution Approach 1:
The system extracts only the essential depth information by calculating the moving distance of the region of interest and using this to generate parallax images, rather than processing all image data, thus reducing processing complexity while maintaining depth perception
Solution Approach 2:
The system creates simplified copies of the original images by generating parallax images based on calculated moving distances, which can be displayed on standard 3D monitors without requiring complex processing of the original multi-view images
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
This approach enables clear stereoscopic viewing of dynamic parts by accurately calculating and displaying parallax images based on the moving distance of the region of interest, improving depth perception and image clarity, even when the subject is in motion.
Implementation Method 1
an X-ray tube 12, a collimator 13, a top plate 14, a C arm 15, and an X-ray detector 16
Implementation Method 2
a collimator 13
Implementation Method 3
an X-ray detector 16
Data Source
AI summary
An X-ray diagnostic apparatus of an embodiment includes processing circuitry. The processing circuitry acquires two medical images, a moving distance of a region of interest between the medical images corresponding to a distance derived from a parallax angle. The processing circuitry causes a display to display a stereoscopic image based on the medical images.