Image analysis – Image transformation or preprocessing – Correlation
Patent
1998-12-15
2000-08-22
Lee, Thomas D.
Image analysis
Image transformation or preprocessing
Correlation
382107, 356 28, G06K 15316, G06K 900, G01P 336
Patent
active
061084581
ABSTRACT:
A method of image correlation includes providing one or more image arrays of pixel values wherein each pixel value is associated with one of a number of pixels. Pixel values in the image array which are beyond a pixel threshold value are selected and a correlation process is performed on the selected pixel values. The correlation process is preferably performed according to an error correlation function. The sparse array correlation process provides several orders of magnitude in increased processing speed over known correlation processing techniques and is useful for Particle Image Velocimetry analysis.
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Chen Wenpeng
Lee Thomas D.
Massachusetts Institute of Technology
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