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. 2010 Nov 4;1(5):1309–1319. doi: 10.1364/BOE.1.001309

Table 1. Computation time for one A-line (μs) and display frame rate (fps) of a 512 × 512 pixels image based on different processing methods.

Processing method Hardware dispersion compensation Numerical dispersion compensation
Processing time (μs) Frame rate (fps) Processing time (μs) Frame rate (fps)
Linear interpolation + FFT 6.64 296 10.9 179
Cubic spline interpolation + FFT 330 5.9 429 4.5
NDFT 1470 1.3 1635 1.2
NFFT 11.1 175 18.6 95