3D X-ray Inspection of Large Objects via Coordinated Sub-image Stitching

The imaging process is segmented into multiple sequential captures that are later assembled. The digital imaging device captures a first image at an initial position, then moves to a second position to capture a second image, and finally moves to a third position to capture a third image. These segmented images are assembled to form a complete three-dimensional representation of the large object, resolving the contradiction between device size and coverage area.

The patent replaces the mechanical reading process of photostimulable phosphor plates with a digital imaging system. Instead of using PSP plates that require delayed reading and manual reconfiguration, the invention uses a digital imaging device that captures images instantaneously and processes them digitally through assembly operations. This substitution maintains high signal-to-noise ratio and sensitivity while achieving large area coverage through sequential imaging and digital assembly.

The patent employs a dynamic approach where a single detection device and single irradiation source are moved to multiple positions sequentially. The digital imaging device moves from a first position to a second position, then to a third position, capturing images at each location. This dynamic repositioning of limited components achieves three-dimensional reconstruction without requiring multiple heavy detection and irradiation means, thus reducing system mass while maintaining acceptable acquisition time.

The patent ensures continuity of useful action by systematically moving the detection device through predetermined positions (first, second, and third positions) and capturing images in sequence. The controller coordinates the movement and imaging operations continuously without unnecessary interruptions. This continuous operation minimizes acquisition time while using a limited number of detection and irradiation means, balancing system mass reduction with efficient time utilization.