Patent ID: 9613417
Date: 2017-04-04
CPC Classifications: G06T,H04N

Claim:
1. A method for calibrating a plenoptic imaging system, the plenoptic imaging system including a microlens array and a detector array, the plenoptic imaging system subdividing the detector array into superpixels, the method comprising a processor executing the steps of: accessing a plenoptic image captured by the detector array of the plenoptic imaging system; for a row of superpixels in the plenoptic image, selecting a one-dimensional slice through the row, the selected slice having a one-dimensional Fourier transform with a stronger fundamental component compared to other one-dimensional slices through the row; and determining a pitch of the row of superpixels based on a frequency of the fundamental component of the selected slice, and determining a rotation of the row of superpixels based on a rotation of the plenoptic image relative to the selected slice, wherein the determined pitch is a pitch of the microlens array in terms of pixel size on the detector array and the determined rotation is a rotation of the microlens array relative to the detector array.