1. Graphics processing unit based dispersion encoded full-range frequency domain OCT

    Graphics processing unit based dispersion encoded full-range frequency domain OCT

    Standard FD-OCT systems suffer from a limited useful depth range due to the inherent complex conjugate artifacts and continuous fall-off in sensitivity with distance from the zero delay. The techniques of dispersion encoded full range (DEFR) frequency-domain optical coherence tomography (FD-OCT) and its enhanced version fast DEFR use the dispersion mismatch between sample and reference arm to double the imaging depth range by iteratively suppressing complex conjugate artifacts. Previously the computational complexity of DEFR prevented its application to fields where real-time visualization or large volumetric datasets are needed. A graphics processing unit (GPU) with hundreds of processing cores provides highly ...

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