Browsing George R. Brown School of Engineering by Author "Dash, Sanjeeb"
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JPEG Compression History Estimation for Color Images
Neelamani, Ramesh; de Queiroz, Ricardo; Fan, Zhigang; Dash, Sanjeeb; Baraniuk, Richard G. (2006)We routinely encounter digital color images that were previously JPEG-compressed. En route to the image's current representation, the previous JPEG compression's various settings—termed its JPEG compression history ... -
On Nearly Orthogonal Lattice Bases
Neelamani, Ramesh; Dash, Sanjeeb; Baraniuk, Richard G. (2005-07-01)We study "nearly orthogonal" lattice bases, or bases where the angle between any basis vector and the linear subspace spanned by the other basis vectors is greater than 60°. We show that a nearly orthogonal lattice ...