A uniform, raytracing-based imaging model for rigid and fiber-optic endoscopy

Area of Science:

• Medical Imaging
• Optical Engineering
• Computer Vision

Background:

• Endoscopes are crucial for medical diagnosis and therapy.
• Wide-angle endoscopes produce image aberrations like chromatic aberration and geometric distortion.
• These aberrations impede essential image processing and analysis.

Purpose of the Study:

• To develop a unified image model for both rigid and fiber-optic endoscopes.
• To enable objective evaluation of image processing algorithms.
• To provide physically correct ground truth data for endoscope imaging.

Main Methods:

• A uniform ray-tracing based image model was developed.
• The model accounts for the optical characteristics of endoscopes.
• The model generates ground truth data for image analysis.

Main Results:

• The proposed model accurately simulates endoscope image formation.
• It provides a basis for assessing image processing algorithm performance.
• The model is applicable to both rigid and fiber-optic endoscopes.

Conclusions:

• A novel ray-tracing model addresses endoscope image aberrations.
• This model facilitates the objective assessment of image processing techniques.
• It improves the reliability of image analysis in medical endoscopy.