Color multiplexing method to capture front and side images with a capsule endoscope

Area of Science:

• Medical Imaging
• Optical Engineering
• Biomedical Devices

Background:

• Capsule endoscopy (CE) is a minimally invasive diagnostic tool.
• Current CE devices often have limited fields of view or require multiple components.
• Simultaneous capture of multiple views can improve diagnostic accuracy.

Purpose of the Study:

• To develop a capsule endoscope capable of simultaneously recording front and side images.
• To utilize color multiplexing technology for enhanced imaging in a compact design.
• To evaluate the imaging performance and feasibility of the proposed device.

Main Methods:

• Design of a capsule endoscope incorporating an X-cube prism and a single lens.
• Integration of color filters and polarizers for multiplexing image capture.
• Ray-tracing simulations to assess field of view, resolution, and image quality.
• Development of a color multiplexing capsule endoscope (CMCE).

Main Results:

• The CMCE successfully captures simultaneous front and side view profiles.
• The device achieves a wide field of view (up to 210 degrees).
• High resolution (180 lp/mm) and excellent image quality were confirmed through simulation.
• The CMCE maintains a small overall length (13.323 mm).

Conclusions:

• The proposed color multiplexing capsule endoscope offers simultaneous multi-view imaging.
• The CMCE demonstrates high image quality and a broad field of view in a miniaturized form factor.
• This technology has the potential to significantly advance diagnostic capabilities in capsule endoscopy.