Velocity accuracy enhancement and frame rate limitations in color Doppler optical coherence tomography


Journal Article

An improved velocity estimation algorithm is proposed. The algorithm locates the spectral peak within the detection bandwidth, and uses the power at frequencies distributed symmetrically around the peak to compute the centroid. While this algorithm provides very accurate estimates in the presence of a reflection, it fails when noise dominates signal. To compensate this drawback, a noise recognition algorithm is developed and traditional centroid estimates are used for noisy areas. Further, fundamental limits on velocity estimation precision obtainable in Color Doppler optical coherence tomography (CDOCT) are established as a function of image acquisition time.

Duke Authors

Cited Authors

  • Kulkarni, MD; Van Leeuwen, TG; Yazdanfar, S; Izatt, JA

Published Date

  • January 1, 1998

Published In

  • Conference on Lasers and Electro Optics Europe Technical Digest

Start / End Page

  • 125 - 127

Citation Source

  • Scopus