Fast Computation of a Laplacian Pyramid in a Parallel Computing Environment
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United States of America Patent
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May 26, 2016
app pub date -
Nov 20, 2014
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Nov 20, 2014
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Abstract
A computer-implemented method for calculating a Laplacian pyramid in an image processing system comprising a parallel computing platform includes constructing a first layer of a Gaussian pyramid based on an original image. A plurality of Laplacian pyramid layers are constructed using a plurality of device kernels executing on a graphical processing device included in the parallel computing platform. Each respective Laplacian pyramid layer is constructed by a process which includes using one or more first device kernels to calculate a Gaussian pyramid layer based on a immediately preceding Gaussian pyramid layer and using one or more second device kernels to calculate the respective Laplacian pyramid layer based on the immediately preceding Gaussian pyramid layer in parallel with calculation of the Gaussian pyramid layer.
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