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Articulated body motion capture by annealed particle filtering

by Jonathan Deutscher, Andrew Blake, Ian Reid - In IEEE Conf. on Computer Vision and Pattern Recognition , 2000
"... The main challenge in articulated body motion tracking is the large number of degrees of freedom (around 30) to be recovered. Search algorithms, either deterministic or stochastic, that search such a space without constraint, fall foul of exponential computational complexity. One approach is to intr ..."
Abstract - Cited by 494 (4 self) - Add to MetaCart
is to introduce constraints — either labelling using markers or colour coding, prior assumptions about motion trajectories or view restrictions. Another is to relax constraints arising from articulation, and track limbs as if their motions were independent. In contrast, here we aim for general tracking without

Bundle Adjustment -- A Modern Synthesis

by Bill Triggs, Philip McLauchlan, Richard Hartley, Andrew Fitzgibbon - VISION ALGORITHMS: THEORY AND PRACTICE, LNCS , 2000
"... This paper is a survey of the theory and methods of photogrammetric bundle adjustment, aimed at potential implementors in the computer vision community. Bundle adjustment is the problem of refining a visual reconstruction to produce jointly optimal structure and viewing parameter estimates. Topics c ..."
Abstract - Cited by 562 (13 self) - Add to MetaCart
This paper is a survey of the theory and methods of photogrammetric bundle adjustment, aimed at potential implementors in the computer vision community. Bundle adjustment is the problem of refining a visual reconstruction to produce jointly optimal structure and viewing parameter estimates. Topics

The English Noun Phrase in its Sentential Aspect

by Steven Paul Abney - PH.D. DISSERTATION MIT , 1987
"... This dissertation is a defense of the hypothesis that the noun phrase is headed by a functional element (i.e., "non-lexical" category) D, identified with the determiner. In this way, the structure of the noun phrase parallels that of the sentence, which is headed by Infl(ection), under ass ..."
Abstract - Cited by 532 (4 self) - Add to MetaCart
phrases. The problem of capturing this dual aspect of the Possing construction is heightened by current restrictive views of X-bar theory, which, in particular, rule out the obvious structure for Poss-ing, [ NP NP VP ing ], by virtue of its exocentricity. Consideration of languages in which nouns, even

Hybrid Automata: An Algorithmic Approach to the Specification and Verification of Hybrid Systems

by Rajeev Alur, Costas Courcoubetis, Thomas A. Henzinger, Pei-Hsin Ho , 1992
"... We introduce the framework of hybrid automata as a model and specification language for hybrid systems. Hybrid automata can be viewed as a generalization of timed automata, in which the behavior of variables is governed in each state by a set of differential equations. We show that many of the examp ..."
Abstract - Cited by 460 (20 self) - Add to MetaCart
We introduce the framework of hybrid automata as a model and specification language for hybrid systems. Hybrid automata can be viewed as a generalization of timed automata, in which the behavior of variables is governed in each state by a set of differential equations. We show that many

Shared memory consistency models: A tutorial

by Sarita V. Adve, Kourosh Gharachorloo - IEEE Computer , 1996
"... Parallel systems that support the shared memory abstraction are becoming widely accepted in many areas of computing. Writing correct and efficient programs for such systems requires a formal specification of memory semantics, called a memory consistency model. The most intuitive model—sequential con ..."
Abstract - Cited by 441 (10 self) - Add to MetaCart
—sequential consistency—greatly restricts the use of many performance optimizations commonly used by uniprocessor hardware and compiler designers, thereby reducing the benefit of using a multiprocessor. To alleviate this problem, many current multiprocessors support more relaxed consistency models. Unfortunately

Optimization of Conditional Value-At-Risk.

by R T Rockafellar , S Uryasev - The Journal of Risk, , 2000
"... Abstract In an intensifying international competition banks are forced to place increased emphasis on enterprise wide risk-/return management. Financial risks have to be limited and managed from a bank wide portfolio perspective. Risk management requirements have to be met from an internal as well ..."
Abstract - Cited by 426 (26 self) - Add to MetaCart
as from a regulatory point of view. Banks need to maximize their expected returns under these constraints. This leads to a generalized portfolio optimization problem under different capital restrictions. We pursue a two-step Risk-/Return Management Approach ("RRM-Approach")

Incremental interpretation at verbs: Restricting the domain of subsequent reference.

by Gerry T M Altmann , Yuki Kamide - Cognition, , 1999
"... Abstract Participants' eye movements were recorded as they inspected a semi-realistic visual scene showing a boy, a cake, and various distractor objects. Whilst viewing this scene, they heard sentences such as`the boy will move the cake' or`the boy will eat the cake'. The cake was th ..."
Abstract - Cited by 316 (3 self) - Add to MetaCart
Abstract Participants' eye movements were recorded as they inspected a semi-realistic visual scene showing a boy, a cake, and various distractor objects. Whilst viewing this scene, they heard sentences such as`the boy will move the cake' or`the boy will eat the cake'. The cake

A Mathematical View of Interior-point Methods for Convex Optimization

by James Renegar - IN CONVEX OPTIMIZATION, MPS/SIAM SERIES ON OPTIMIZATION, SIAM , 2001
"... These lecture notes aim at developing a thorough understanding of the core theory for interior-point methods. The overall theory continues to grow ata rapid rate but the core ideas have remained largely unchanged for several years, since Nesterov and Nemirovskii [1] published their path-breaking, br ..."
Abstract - Cited by 271 (2 self) - Add to MetaCart
-specialists and PhD students. Therein lies the justification for these lecture notes. We develop the theory in R^n although most of the theory can be developed in arbitrary real Hilbert spaces. The restriction to finite dimensions is primarily for accessibility. The notes were developed largely in conjunction with a

Answering Recursive Queries Using Views

by Oliver M. Duschka, Michael R. Genesereth - In PODS , 1997
"... We consider the problem of answering datalog queries using materialized views. The ability to answer queries using views is crucial in the context of information integration. Previous work on answering queries using views restricted queries to being conjunctive. We extend this work to general recurs ..."
Abstract - Cited by 205 (9 self) - Add to MetaCart
We consider the problem of answering datalog queries using materialized views. The ability to answer queries using views is crucial in the context of information integration. Previous work on answering queries using views restricted queries to being conjunctive. We extend this work to general

Unstructured lumigraph rendering

by Chris Buehler, Michael Bosse, Leonard Mcmillan, Steven Gortler, Michael Cohen - In Computer Graphics, SIGGRAPH 2001 Proceedings , 2001
"... We describe an image based rendering approach that generalizes many image based rendering algorithms currently in use including light field rendering and view-dependent texture mapping. In particular it allows for lumigraph style rendering from a set of input cameras that are not restricted to a pla ..."
Abstract - Cited by 291 (11 self) - Add to MetaCart
We describe an image based rendering approach that generalizes many image based rendering algorithms currently in use including light field rendering and view-dependent texture mapping. In particular it allows for lumigraph style rendering from a set of input cameras that are not restricted to a
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