Cancellation of coherent artifacts in optical coherence tomography imaging - opticsinfobase.org -Optical Coherence Tomography News

Cancellation of coherent artifacts in optical coherence tomography imaging

opticsinfobase.org Oct 1 2001

Coherent artifacts in optical coherence tomography (OCT) images can severely degrade image quality by introducing false targets if no targets are present at the artifact locations. Coherent artifacts can also add constructively or destructively to the targets that are present at the artifact locations. This constructive or destructive interference will result in cancellation of the true targets or in display of incorrect echo amplitudes of the targets. We introduce the use of a nonlinear deconvolution algorithm, CLEAN, to cancel coherent artifacts in OCT images of extracted human teeth. The results show that CLEAN can reduce the coherent artifacts to the ...
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