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TIT
2002
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13 years 4 months ago
Lagrangian empirical design of variable-rate vector quantizers: consistency and convergence rates
Abstract--The Lagrangian formulation of variable-rate vector quantization is known to yield useful necessary conditions for quantizer optimality and generalized Lloyd algorithms fo...
Tamás Linder
DCC
2008
IEEE
14 years 4 months ago
An Estimation-Theoretic Interpretation of Video Rate Distortion Optimization with Lagrangian Formulation
Rate distortion optimization with Lagrangian formulation is widely used in video encoder control and has proved effective in achieving a good trade-off between coding efficiency a...
Zhen Li, Alexis Michael Tourapis
ECCV
2000
Springer
14 years 6 months ago
New Algorithms for Controlling Active Contours Shape and Topology
In recent years, the eld of active-contour based image segmentation have seen the emergence of two competing approaches. The rst and oldest approach represents active contours in ...
Hervé Delingette, Johan Montagnat