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Performance analysis of the cepstral technique for frequency-domain optical-coherence tomography.
| Content Provider | CiteSeerX |
|---|---|
| Author | Ch, S. Sekhar, Ra Unser, Michael |
| Abstract | Recently, we proposed a noniterative cepstral technique for exact signal recovery in frequency-domain optical-coherence tomography. In this paper, we address the influence of mea-surement noise on the performance of the method. We derive analytical expressions for the bias and variance of the tomo-gram under a small noise approximation, and show that our technique yields unbiased and consistent estimators, which have a variance that is proportional to that of the noise and inversely proportional to the data size. We present simulation results to confirm the theoretical derivations. We also derive approximate Cramér-Rao bounds (CRBs) on the achievable accuracy of reconstruction. Index Terms — frequency-domain optical-coherence to-mography (FDOCT), cepstrum, bias, variance, mean square error, Cramér-Rao bound. 1. |
| File Format | |
| Access Restriction | Open |
| Subject Keyword | Cepstral Technique Frequency-domain Optical-coherence Tomography Performance Analysis Index Term Frequency-domain Optical-coherence To-mography Frequency-domain Optical-coherence Tomography Noniterative Cepstral Technique Achievable Accuracy Small Noise Approximation Data Size Mean Square Error Consistent Estimator Theoretical Derivation Crame R-rao Bound Exact Signal Recovery Derive Analytical Expression Technique Yield Mea-surement Noise Present Simulation Result Approximate Crame R-rao Bound |
| Content Type | Text |
