In this paper, we present a 3D surface imaging technique to re-engineer traditional endoscopy into a quantitatively capable instrument. In our design concept, we demonstrate that, by utilizing two fiber bundle channels and structured light based 3D reconstruction principle, we can obtain the 3D information on a GI tract surface in all most real time fashion. The two fiber bundles are used for pattern light projection and image capture. The implied significance of our design and experiment includes: (a) It is possible to convert the traditional 2D video based endoscope into a 3D endoscope through minimum modifications; and (b) The proposed 3D endoscope allows clinicians to obtain the actual size information on any target of interest during the procedures.
Capsule endoscopy (CE) uses a miniature on-board camera in a pill for imaging gastrointestinal (GI) tract. It has provided a non-invasive and non-ionization way for gastroenterologists to diagnose GI tract diseases. However, CE has major drawbacks such as ineffective forward-looking field of view (FOV), abundant data, and lengthy viewing and interpreting time, significantly lowering the chance of finding a GI disease through the video screening process. We present a concept of utilizing full spherical field of view imaging for easy visualization. Built on camera pose tracking and 3D algorithms under spherical viewing field of view (FOV), through immersive display or VR, the technology is shown to allow clinicians to visualize interested pathological structures at finger tips on a VR device. Initial test results on phantoms show that our design is feasible.