Scanned Image Correction for Cantilever Detector Arm Sway
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Large scanning devices with cantilever structures experience detector boom sway during scanning, leading to image quality degradation due to fluctuations in radiation reception, affecting spatial line resolution, contrast, and overall imaging quality.
Innovation Solution
A scanned image correction apparatus comprising an image collector, arm swing detector, and image processor that detects displacement offsets of the detector arm, builds an arm swing model, and corrects scanned images based on the change relationship between image parameters and displacement offsets, thereby improving image quality without altering the mechanical structure of the scanning device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a locking device is installed to restrict the swing of the detector boom, then the stability of the detector arm is improved, but the device complexity increases and the improvement accuracy is low
Solution Approach 1:
The patent replaces the mechanical locking device with a software-based correction system. An arm swing detector measures the actual swing of the detector boom, and an image processor applies digital correction algorithms to compensate for the swing effects. This substitutes mechanical intervention with measurement and computational correction, reducing device complexity while improving stability.
Solution Approach 2:
The patent introduces an intermediary correction system between the detector boom and the final image. The arm swing detector acts as a mediator to measure the swing, and the image processor serves as another intermediary to apply correction algorithms. This intermediary approach allows the mechanical structure to remain simple while achieving stability through measurement and correction.
2Area of stationary object
If the scanning channel is increased to improve imaging coverage, then the area of scanning is improved, but the swing of the detector boom is intensified
Solution Approach 1:
The patent implements a feedback mechanism where the arm swing detector continuously monitors the detector boom swing and provides real-time data to the image processor. The image processor uses this feedback to dynamically adjust and apply correction algorithms that compensate for the swing effects, allowing large scanning channels to maintain image quality despite increased boom swing.
Solution Approach 2:
The patent changes the approach from mechanically controlling swing parameters to digitally correcting image parameters based on measured swing data. The system measures swing parameters (amplitude, frequency, phase) and applies corresponding corrections to image parameters (pixel positioning, intensity distribution), enabling large scanning areas to maintain stability through parameter transformation rather than mechanical constraint.
3Manufacturing precision
If a locking device is installed to restrict detector boom swing, then the image quality is improved, but the manufacturing cost and maintenance cost increase
Solution Approach 1:
The patent replaces expensive mechanical locking devices with more economical sensors and software processing systems. The arm swing detector uses relatively simple sensors (accelerometers, position sensors) and the correction system uses computational algorithms, which are generally less costly to manufacture and maintain than precision mechanical locking mechanisms while achieving comparable or superior image quality.
Solution Approach 2:
The system implements self-service correction where the scanning device automatically detects and corrects its own swing effects without external intervention. The arm swing detector continuously monitors the system state and the image processor automatically applies corrections, eliminating the need for complex mechanical locking devices and reducing both manufacturing and maintenance costs.
Data Source
AI summary
The present disclosure provides a scanned image correction apparatus, method and a mobile scanning device. The apparatus includes an image collector, an arm swing detector, and an image processor. The image collector is configured to collect a scanned image of an object under inspection during a scanning process of scanning the object under inspection by the mobile scanning device, and determine an image parameter of the scanned image. The arm swing detector is disposed at a monitor point on a detector arm of the mobile scanning device, and configured to detect a displacement offset of the detector arm in a specified direction and build an arm swing model of the detector arm. The image processor is configured to determine a change relationship between the image parameter of the scanned image and the displacement offset of the detector arm, and correct the scanned image based on the change relationship.