Differential phase correlation

Details Differential phase correlation Differential phase correlation

2007-03-05

2010-12-07

Strege, John B (Department: 2624)

Image analysis

Applications

Motion or velocity measuring

C348S154000, C348S155000

Reexamination Certificate

active

07848541

ABSTRACT:
Acceleration of a set of three frames of video with N movers may be determined by generating an inverse Fourier transformation of a differential phase correlation matrix of the three frames. The resultant acceleration estimate may be integrated with the velocity and offset estimates for the second frame so as to provide an offset estimate for the third frame. The third frame may then be co-registered with a reference frame. This process may be repeated for subsequent frames so that subsequent frames may also be registered to the reference frame so that video jitter that was caused by platform shake may be reduced or eliminated.

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