Imaging Plate Reader with Reflected-Light Tilt Correction
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Solution Overview
Problem
Existing reading apparatuses for radiographs from imaging plates lack usability improvements.
Innovation Solution
A reading apparatus that includes a first light source to irradiate the imaging plate with excitation light, a first detector to detect photostimulated light, a second light source to irradiate an object, and a second detector to detect reflected light, enabling the acquisition of both photostimulated and reflected light images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If only photostimulated light detection is used, then radiograph reading function is provided, but usability is limited and image processing capabilities are insufficient
Solution Approach 1:
The patent combines photostimulated light detection and reflected light detection systems into a single reading apparatus. The imaging plate is irradiated with excitation light, and both photostimulated light (from the phosphor layer) and reflected light (from the object surface) are detected simultaneously using separate detectors. This merging enables the apparatus to provide both radiograph reading and reflected light image acquisition functions, significantly improving usability and adaptability while maintaining integrated operation.
Solution Approach 2:
The reading apparatus is designed with multi-functionality to perform multiple tasks: it can acquire radiographs through photostimulated light detection, capture reflected light images through reflected light detection, and process both types of images through integrated image processing units. This universal design allows the single apparatus to serve multiple purposes in medical imaging, enhancing its versatility and usability without requiring separate dedicated devices for each function.
2Measurement precision
If integrated photostimulated and reflected light detection is implemented, then image processing capabilities are enhanced, but device complexity increases
Solution Approach 1:
The detection system is segmented into separate detection paths: one for photostimulated light and another for reflected light. Each detector is optimized for its specific light type, and the signals are processed independently through dedicated image processing units. This segmentation allows for specialized processing of each signal type, improving measurement precision and image processing capability while maintaining manageable system complexity through modular architecture.
Solution Approach 2:
The patent introduces an intermediary signal processing system that handles both photostimulated and reflected light signals through a unified control unit. This intermediary processing layer coordinates the detection, processing, and display of both image types, enabling enhanced image processing capabilities while centralizing control to prevent excessive system complexity. The intermediary processor manages the integration of multiple detection channels and coordinates the overall operation of the reading apparatus.
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
Enhances the usability of the reading apparatus by allowing for improved detection and processing of radiographs, including tilt correction and image enhancement through combined photostimulated and reflected light analysis.
Implementation Method 1
a first light source that irradiates the imaging plate with excitation light; a first detector that detects photostimulated light from the imaging plate emitted by the excitation light
Implementation Method 2
a second light source that irradiates an object with light; and a second detector that detects reflected light of the light from the object
Data Source
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AI summary
A reading apparatus that reads a radiograph from an imaging plate includes: a first light source that irradiates the imaging plate with excitation light; a first detector that detects photostimulated light from the imaging plate emitted by the excitation light; a second light source that irradiates an object with light; and a second detector that detects reflected light of the light from the object.