Registration of retinal sequences from new video-ophthalmoscopic camera.

ABSTRACT:

Background

Analysis of fast temporal changes on retinas has become an important part of diagnostic video-ophthalmology. It enables investigation of the hemodynamic processes in retinal tissue, e.g. blood-vessel diameter changes as a result of blood-pressure variation, spontaneous venous pulsation influenced by intracranial-intraocular pressure difference, blood-volume changes as a result of changes in light reflection from retinal tissue, and blood flow using laser speckle contrast imaging. For such applications, image registration of the recorded sequence must be performed.

Methods

Here we use a new non-mydriatic video-ophthalmoscope for simple and fast acquisition of low SNR retinal sequences. We introduce a novel, two-step approach for fast image registration. The phase c

SUBMITTER: Kolar R 

PROVIDER: S-EPMC4875736 | biostudies-literature | 2016 May

REPOSITORIES: biostudies-literature