FFT2D {AIUQ} | R Documentation |
2D Fourier transformation and calculate wave number
Description
Perform 2D fast Fourier transformation on SS_T matrix, record frame size for each frame, total number of frames, and sequence of lag times. Calculate and record circular wave number for complete q ring.
Usage
FFT2D(intensity_list, pxsz, mindt)
Arguments
intensity_list |
intensity profile, SS_T matrix |
pxsz |
size of one pixel in unit of micron |
mindt |
minimum lag time |
Value
A list object containing transformed intensity profile in reciprocal space and corresponding parameters.
Author(s)
Yue He [aut], Xubo Liu [aut], Mengyang Gu [aut, cre]
References
Gu, M., He, Y., Liu, X., & Luo, Y. (2023). Ab initio uncertainty quantification in scattering analysis of microscopy. arXiv preprint arXiv:2309.02468.
Gu, M., Luo, Y., He, Y., Helgeson, M. E., & Valentine, M. T. (2021). Uncertainty quantification and estimation in differential dynamic microscopy. Physical Review E, 104(3), 034610.
Cerbino, R., & Trappe, V. (2008). Differential dynamic microscopy: probing wave vector dependent dynamics with a microscope. Physical review letters, 100(18), 188102.