Multi-camera optical tracking and fringe pattern analysis for eye surface profilometry in ocular proton therapy.

ABSTRACT:

Background and purpose

An optical tracking system for high-precision measurement of eye position and orientation during proton irradiation of intraocular tumors was designed. The system performed three-dimensional (3D) topography of the anterior eye segment using fringe pattern analysis based on Fourier Transform Method (FTM).

Materials and methods

The system consisted of four optical cameras and two projectors. The design and modifications to the FTM pipeline were optimized for the realization of a reliable measurement system. Of note, phase-to-physical coordinate mapping was achieved through the combination of stereo triangulation and fringe pattern analysis. A comprehensive pre-clinical validation was carried out. Then, the system was set to acquire the eye surface of pat

SUBMITTER: Via R 

PROVIDER: S-EPMC10679530 | biostudies-literature | 2023 Oct

REPOSITORIES: biostudies-literature