Effects of the optical transfer function on velocity estimation with optical coherence tomography

摘要

Doppler optical coherence tomography (DOCT) is an extension of optical coherence tomography (OCT) for measuring blood flow dynamics simultaneously with the microscopic structures at high spatial and velocity resolution. In this paper, we analyze the effects of parameters of the DOCT system on the optical transfer function (OTF) which finally affects the accuracy of the velocity estimation. Experimental data are given to show the effects. The methods of overcoming the effects are also pointed out.