Robotic X-Ray Imaging Scatter Correction for Clearer 3D Reconstruction
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Solution Overview
Problem
Imaging devices suffer from scatter effects that reduce image contrast and increase blurriness due to scattered photons, with conventional methods relying on predefined models that may not accurately account for the actual target object, and increasing patient radiation exposure.
Innovation Solution
A system using multiple robotic arms to capture image datasets at various source detector distances, angles, and orientations, employing image processing and Monte-Carlo simulations to estimate and apply scatter corrections tailored to the actual scanned object, reducing reliance on predefined models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional predefined models are used for scatter correction, then the correction process is simplified, but the accuracy of scatter correction deteriorates because the models may not accurately account for the actual target object
Solution Approach 1:
The system creates a digital copy (virtual model) of the actual target object based on imaging data, which is then used for scatter correction calculations. This virtual copy accurately represents the physical object's properties without requiring complex physical measurements, thus maintaining accuracy while simplifying the correction process.
Solution Approach 2:
The patent replaces traditional mechanical measurement systems with computational modeling. Instead of using complex physical devices to measure and model scatter, the system uses computer-based simulations and algorithms to calculate scatter correction, reducing physical complexity while maintaining or improving accuracy.
2Measurement precision
If multiple image datasets are captured at various distances and angles to improve scatter correction accuracy, then the correction precision improves, but the time required for image acquisition and processing increases
Solution Approach 1:
The system performs preliminary actions by capturing essential imaging data at optimized positions and angles before the actual scatter correction is needed. This preliminary data collection establishes a virtual model that can be reused for correction calculations, reducing the need for repeated measurements and minimizing processing time while maintaining accuracy.
Solution Approach 2:
The patent applies partial action by selecting only the most critical viewing angles and distances for data acquisition, rather than capturing complete datasets from all possible positions. This selective approach captures sufficient information for accurate scatter correction while significantly reducing acquisition and processing time.
3Manufacturing precision
If scatter correction is applied to improve image quality, then image contrast and sharpness improve, but the computational complexity and processing requirements increase
Solution Approach 1:
The system uses a virtual copy of the target object to perform scatter correction calculations instead of directly processing complex raw imaging data. This virtual model simplifies the computational task by providing a known reference structure, reducing processing complexity while maintaining the ability to generate high-quality corrected images.
Solution Approach 2:
The patent introduces an intermediary computational step where a virtual model of the target object is created and used as a mediator between raw imaging data and final scatter-corrected images. This intermediary representation simplifies the mathematical calculations required for correction, reducing overall computational complexity while preserving image quality.
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
Improves image quality by correcting scatter effects, resulting in more accurate volume reconstruction and reduced radiation exposure.
Implementation Method 1
a source configured to emit a wave
Implementation Method 2
scatter effects that reduce image contrast and increase blurriness due to scattered photons
Implementation Method 3
a detector configured to receive a signal indicative of the emitted wave
Data Source
AI summary
Systems, methods, and devices for generating a corrected image are provided. A first robotic arm may be configured to orient a source at a first pose and a second robotic arm may be configured to orient a detector at a plurality of second poses. An image dataset may be received from the detector at each of the plurality of second poses to yield a plurality of image datasets. The plurality of datasets may comprise an initial image having a scatter effect. The plurality of image datasets may be saved. A scatter correction may be determined and configured to correct the scatter effect. The correction may be applied to the initial image to correct the scatter effect.