Radiation Scanning Image Extraction for Thin-Layer Object Features
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Solution Overview
Problem
Existing radiation detection technologies face challenges in accurately extracting feature information from objects with thin layer structures, particularly when using narrow strip detectors, leading to one-dimensional information and interference between adjacent layers, which affects image resolution and recognition.
Innovation Solution
A detection apparatus and method that includes a detection channel, imaging system, and posture adjustment structure to accurately position and scan objects, allowing for the extraction of critical dimension information from radiation scanning images by identifying boundary lines and calculating dimensions of detection parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If narrow strip detectors are used for radiation detection, then device complexity is reduced, but measurement precision deteriorates due to one-dimensional information and interference between adjacent layers
Solution Approach 1:
The patent transforms the detection from one-dimensional (narrow strip detector) to two-dimensional imaging by introducing an imaging system that captures radiation scanning images. This dimensional change allows for accurate extraction of feature information including boundary lines and dimensions of detection parts, resolving the precision limitation of narrow strip detectors while maintaining relative device simplicity.
2Measurement precision
If complete DR or reconstructed images are used for feature analysis, then measurement precision is improved, but loss of time increases due to complex processing requirements
Solution Approach 1:
The patent extracts only the necessary feature information (boundary lines and dimensions of detection parts) directly from radiation scanning images, rather than processing complete DR or reconstructed images. This extraction approach maintains measurement precision for contraband detection while significantly reducing processing time by focusing only on critical features.
3Ease of operation
If radiation scanning is performed without precise positioning, then ease of operation is improved, but measurement precision deteriorates due to interference between adjacent layers
Solution Approach 1:
The patent implements preliminary positioning of the detected object before radiation scanning using a posture adjustment structure. This preliminary action ensures that the detection part is correctly positioned within the scanning region, preventing interference between adjacent layers and maintaining high image resolution while keeping the scanning operation simple and automated.
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
Enables accurate extraction of feature information from objects with thin layer structures, improving image resolution and recognition by ensuring the detection part is positioned correctly within the scanning region, reducing interference and enhancing detection accuracy.
Implementation Method 1
controlling the imaging system to perform radiation scanning on the detected object; acquiring a radiation scanning image of the detected object
Data Source
AI summary
A method of acquiring feature information of a detected object is provided, including: controlling the detected object to pass through a detection apparatus; controlling an imaging system to perform radiation scanning on the detected object acquiring a radiation scanning image of the detected object acquiring feature information of the detected object through the radiation scanning image. The detected object includes a first part, a detection part and a second part sequentially in a first direction. The acquiring feature information of the detected object through the radiation scanning image includes: acquiring a first boundary line between the detection part and the first part and a second boundary line between the detection part and the second part through the radiation scanning image; and calculating a dimension between the first boundary line and the second boundary line in the first direction to acquire a dimension of the detection part in the first direction.