Radiographic Imaging System Positioning Accuracy
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Solution Overview
Problem
Radiographic imaging systems face low accuracy in automatic position adjustment of movable units due to insufficient subject information, necessitating manual adjustments.
Innovation Solution
A radiographic imaging system comprising a radiation generation unit, imaging unit, movable unit, subject information acquisition unit, first and second position controllers, and a recognition unit that adjusts the movable unit's position based on subject information and recognition results to improve accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If automatic position adjustment is performed using limited subject information, then the automation level is improved, but the positioning accuracy deteriorates
Solution Approach 1:
The system performs preliminary position adjustment based on subject information (height, weight, physique) before the subject enters the imaging room. This preliminary action allows the movable unit to be pre-positioned according to the subject's characteristics, reducing the adjustment range needed later and improving overall positioning accuracy while maintaining automation.
Solution Approach 2:
The system uses imaging data captured after the subject enters the room to detect the subject's actual position and provides feedback to the control unit. The control unit then performs fine-tuned automatic adjustment based on this feedback, achieving high positioning accuracy through a closed-loop control system that combines preliminary positioning with feedback-based refinement.
2Measurement precision
If more subject information is collected to improve positioning accuracy, then the measurement precision is improved, but the system complexity increases
Solution Approach 1:
The system uses a single imaging unit to serve multiple functions: capturing images for diagnostic purposes and simultaneously detecting subject position for positioning accuracy. This multi-functionality allows the system to obtain positioning information without adding dedicated sensors or measurement devices, avoiding increased system complexity while improving positioning precision.
Solution Approach 2:
The imaging system serves itself by using the same imaging apparatus to both diagnose the subject and determine the subject's position for positioning purposes. The control unit processes the imaging data to extract positioning information, allowing the system to self-adjust without requiring separate measurement systems or additional information acquisition hardware.
3Measurement precision
If manual adjustment is required after automatic adjustment, then the positioning accuracy is improved, but the productivity deteriorates
Solution Approach 1:
The system implements automatic feedback-based fine adjustment using imaging data captured after the subject enters the room. The control unit automatically detects the subject's actual position from the images and adjusts the movable unit accordingly, eliminating the need for manual adjustment while maintaining high positioning accuracy and preserving workflow efficiency.
Solution Approach 2:
The system replaces manual mechanical adjustment with automatic control based on imaging feedback. The control unit uses the imaging data to automatically calculate and execute the necessary position corrections, substituting the manual operator's mechanical adjustment actions with an automated control system that achieves the same positioning accuracy without reducing productivity.
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 accuracy of automatic position adjustment, allowing for smooth radiographic imaging without the need for manual operation, even for subjects with varying physiques.
Implementation Method 1
a radiation generation unit that generates radiation
Implementation Method 2
a radiographic imaging unit that images a subject using the radiation
Data Source
AI summary
A radiographic imaging system includes: a radiographic imaging apparatus body that has a movable unit and is disposed in an imaging room; a subject information acquisition unit that acquires subject information regarding a subject; a first position controller that moves a position of the movable unit to a first position according to the physique of the subject using the subject information; an imaging unit that images the subject; a recognition unit that recognizes the subject using an image of the subject captured by the imaging unit; and a second position controller that moves the position of the movable unit from the first position to a second position according to a recognition result of the recognition unit using the recognition result of the recognition unit.