Subpixel registration

Details Subpixel registration Subpixel registration

2008-04-29

2011-11-08

Patel, Kanjibhai (Department: 2624)

Image analysis

Image transformation or preprocessing

Changing the image coordinates

C345S613000

Reexamination Certificate

active

08055101

ABSTRACT:
Sub pixel image alignment includes mapping first pixels from a first image and second pixels from a second image to a coordinate system and applying one or more sub-pixel shifts to the mapped first pixels. For each sub-pixel shift, an overall energy is calculated and is based on a plurality of gradients that represent changes in a channel value among the shifted first pixels and the mapped second pixels. The sub-pixel alignment further includes determining the sub-pixel shift that provides the lowest overall energy.

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Katsaggelos, A.K. et al. (Aug. 11, 2006).Super resolution of images and video. Morgan & Claypool Publishers.

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