OPTICAL IMAGE STABILIZATION METHOD AND SYSTEM BASED ON LINE SCAN OPHTHALMOSCOPE IMAGING SYSTEM

Abstract

Disclosed are an image stabilization method and system based on a line scan ophthalmoscope imaging system. The image stabilization system comprises a primary ophthalmoscope (LSO) imaging system with internal optical closed-loop tracking and an integrated auxiliary imaging system controlled by an LSO, wherein the primary LSO imaging system is used for performing imaging itself and providing fundus positioning and navigation for the auxiliary imaging system, and for calculating fundus or eyeball movement information obtained from an LSO image and performing closed-loop optical tracking; the auxiliary imaging system makes light emitted by a point light source reach an orthogonal scanning mirror via a collimation system and then be focused on a dichroic mirror (DM); and a corresponding spatial position of the orthogonal scanning mirror is adjusted in real time by means of applying the fundus or eyeball movement information to the orthogonal scanning mirror, so as to acquire a tomographic image of a required fundus position or realize fundus single-point or array target hitting. By means of the present invention, a closed-loop fundus optical tracking system can be established in an LSO, and the closed-loop tracking system is used to control a line scan ophthalmoscope imaging system, thereby achieving the aim of high-speed, stable and accurate control.

IPC Classifications