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Showing 1 to 3 of 3 for “"Discrete cosine transforms"”.
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Fourier-based optical analysis of a membrane mirror spatial light modulator
… conversion. The computational model, based on discrete cosine transforms, is lightweight enough to be run on standard desktop computers, and flexible enough to allow engineering simulations of arbitrary pixel phase profiles, including empirical datasets. We apply these models to case studies of …
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Analysis of one-dimensional transforms in coding motion compensation prediction residuals for video applications
… and compressed by applying two-dimensional transforms such as the two-dimensional discrete cosine transform (2D-DCT). Previous work has found that the use of direction-adaptive one-dimensional discrete cosine transforms (1D-DCTs) in coding motion compensation residuals can provide …
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Character extraction from ancient Chinese stele using discrete cosine transform
<p>"The discrete cosine transform (DCT) was applied to locate Chinese characters in ink rubbings of ancient Chinese steles (stone slabs with inscribed characters) in order to extract the characters by creating a bounding box in the image reconstructed by the inverse DCT. This work is a …