IEEE Trans Pattern Anal Mach Intell - Model-Based 3D Hand Pose Estimation from Monocular Video.

Tópicos

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Resumo

A novel model-based approach to 3D hand tracking from monocular video is presented. The 3D hand pose, the hand texture, and the illuminant are dynamically estimated through minimization of an objective function. Derived from an inverse problem formulation, the objective function enables explicit use of temporal texture continuity and shading information while handling important self-occlusions and time-varying illumination. The minimization is done efficiently using a quasi-Newton method, for which we provide a rigorous derivation of the objective function gradient. Particular attention is given to terms related to the change of visibility near self-occlusion boundaries that are neglected in existing formulations. To this end, we introduce new occlusion forces and show that using all gradient terms greatly improves the performance of the method. Qualitative and quantitative experimental results demonstrate the potential of the approach.

Resumo Limpo

novel modelbas approach d hand track monocular video present d hand pose hand textur illumin dynam estim minim object function deriv invers problem formul object function enabl explicit use tempor textur continu shade inform handl import selfocclus timevari illumin minim done effici use quasinewton method provid rigor deriv object function gradient particular attent given term relat chang visibl near selfocclus boundari neglect exist formul end introduc new occlus forc show use gradient term great improv perform method qualit quantit experiment result demonstr potenti approach

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