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ICIP
2000
IEEE
15 years 9 months ago
Trellis-Based R-D Optimal Quantization in H.263+
Abstract—We describe a trellis-based algorithm which enables R-D optimum quantization decisions in the H.263+ video coding standard. The algorithm allows the quantization decisio...
Max H. Luttrell, Jiangtao Wen, John D. Villasenor
ICIP
2000
IEEE
15 years 9 months ago
Modelling Profiles with a Mixture of Gaussians
Point Distribution Models are useful tools for modelling the variability of particular classes of shapes. A common approach is to apply a Principle Component Analysis to the data,...
James Orwell, Darrel Greenhill, Jonathan D. Rymel,...
ISCAS
1999
IEEE
90views Hardware» more  ISCAS 1999»
15 years 8 months ago
Stability of two-dimensional discrete systems
Abstract-- Two-dimensional (2-D) discrete systems with periodic coefficients are considered for stability. These systems are called periodically shift variant (PSV) digital filters...
Tamal Bose, Guo-Fang Xu
ISWC
1999
IEEE
15 years 8 months ago
The WristCam as Input Device
We show how images of a user's hand from a video camera attached to the underside of the wrist can be processed to yield finger movement information. Discrete (and discreet) ...
Andrew Vardy, John A. Robinson, Li-Te Cheng
SCALESPACE
1999
Springer
15 years 8 months ago
A Geometric Functional for Derivatives Approximation
We develop on estimation method, for the derivative field of an image based on Bayesian approach which is formulated in a geometric way. The Maximum probability configuration of ...
Nir A. Sochen, Robert M. Haralick, Yehoshua Y. Zee...
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