3D X-ray Baggage Scanner Using Multi-Angle Sensor Fusion
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Solution Overview
Problem
Traditional single-view X-ray scanning systems produce 2D images, losing depth information and leading to misinterpretation and security lapses, while dual or multi-view systems require complex setups and increased radiation handling.
Innovation Solution
A system using a continuous conveyor belt, multiple electromagnetic radiation sensors, and a processor to generate a 3D image by profiling and categorizing items inside an object using a combination of sensors and an electromagnetic radiation generator, producing distortion-corrected and color-mapped images.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If traditional single view x-ray scanning systems are used, then the system structure is simple, but the depth information is lost and misinterpretation occurs
Solution Approach 1:
The patent applies dimensionality change by transitioning from 2D single-view imaging to 3D multi-view imaging. Multiple X-ray generators and detector assemblies are arranged at different angular positions around the conveyor belt, capturing images from multiple dimensions. The processor then reconstructs these 2D projections into a 3D representation of the object's interior, preserving depth information while maintaining relative system simplicity through modular sensor arrangements.
2Loss of information
If dual or multi-view X-ray inspection systems are used, then three-dimensional information is captured, but the setup becomes complex and radiation handling becomes more difficult
Solution Approach 1:
The patent merges multiple X-ray imaging functions into a single integrated system. Multiple generators and detector assemblies are combined around a central conveyor belt, with all components synchronized to scan the same object simultaneously or sequentially. The processor consolidates data from all sensors to produce a unified 3D reconstruction, reducing overall system complexity compared to separate multi-view systems while maintaining comprehensive 3D imaging capability.
3Loss of information
If dual or multi-view X-ray inspection systems are used, then three-dimensional information is captured, but the system requires heavier structures and more sophistication in radiation handling
Solution Approach 1:
The patent segments the imaging system into multiple independent but coordinated units positioned around the conveyor belt. Each generator-detector assembly operates as a separate module that can be independently adjusted and maintained. This segmentation allows for lighter individual components compared to a single heavy multi-view system, while the modular arrangement distributes the radiation handling requirements across multiple positioned units rather than requiring one complex heavy structure.
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 3D imaging of items within objects, reducing false alarms and increasing throughput with a simpler setup compared to traditional multi-view systems.
Implementation Method 1
The fourth electromagnetic radiation sensor that is positioned above the tunnel that detects the angular beam of electromagnetic radiation that are passed through the object in three dimensions
Data Source
AI summary
A system for scanning an object 112 is provided. The system includes a continuous conveyor belt 102, a first electromagnetic radiation sensor 104, a second electromagnetic radiation sensor, a tunnel 106, an electromagnetic radiation generator 108, a third electromagnetic radiation sensor, a fourth electromagnetic radiation sensor 110 and a processor. The continuous conveyor belt 102 receives the object 112 and moves the object 112 in forward direction. The first electromagnetic radiation sensor scans the object 112 that is travelling through the continuous conveyor belt 102. The tunnel 106 receives the object 112 from the continuous conveyor belt 102 after scanned through the first electromagnetic radiation sensor 104. The second electromagnetic radiation sensor is positioned inside the tunnel 106 at entry point. The electromagnetic radiation generator 108 receives a second signal from the second electromagnetic radiation sensor to generate an angular beam of electromagnetic radiation on the object 112.