Outer Solar System by Viorel Badescu & Kris Zacny

Author:Viorel Badescu & Kris Zacny
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Each voxel grid is converted into the spectral domain using a 3D discrete Fourier transform (DFT) and one is aligned to the other along the depth axis using sub-pixel image shifting (vehicle depth is well known using pressure sensor data).

Each shifted voxel grid has the inverse Fourier transform applied to its depth axis to result in a stack of 2D DFT images. The Fourier-Mellin transform is used to calculate cross correlation of each slice of the stack. The cross correlation for each stack is summed together to obtain cross correlation of the voxel grid pairs.

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