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ICIP
2004
IEEE
14 years 9 months ago
Wavelet-based contourlet transform and its application to image coding
In this paper, we first propose a new family of geometrical image transforms that decompose images both radially and angularly. Our construction comprises two stages of filter ban...
Ramin Eslami, Hayder Radha
KDD
2006
ACM
120views Data Mining» more  KDD 2006»
14 years 8 months ago
Hierarchical topic segmentation of websites
In this paper, we consider the problem of identifying and segmenting topically cohesive regions in the URL tree of a large website. Each page of the website is assumed to have a t...
Ravi Kumar, Kunal Punera, Andrew Tomkins
PODS
2005
ACM
115views Database» more  PODS 2005»
14 years 8 months ago
A divide-and-merge methodology for clustering
We present a divide-and-merge methodology for clustering a set of objects that combines a top-down "divide" phase with a bottom-up "merge" phase. In contrast, ...
David Cheng, Santosh Vempala, Ravi Kannan, Grant W...
3DPVT
2006
IEEE
257views Visualization» more  3DPVT 2006»
14 years 1 months ago
3D from Line Segments in Two Poorly-Textured, Uncalibrated Images
This paper addresses the problem of camera selfcalibration, bundle adjustment and 3D reconstruction from line segments in two images of poorly-textured indoor scenes. First, we ge...
Herbert Bay, Andreas Ess, Alexander Neubeck, Luc J...
ICMCS
2006
IEEE
157views Multimedia» more  ICMCS 2006»
14 years 1 months ago
RD-Optimization for MPEG-2 to H.264 Transcoding
1 In this paper, we introduce and evaluate a low complexity macroblock partition mode decision algorithm for interframe prediction in MPEG-2 to H.264 transcoder. The proposed tools...
Gerardo Fernández-Escribano, Hari Kalva, Pe...