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Titolo:
A coordinate-invariant approach to multiresolution motion analysis
Autore:
Lee, J; Shin, SY;
Indirizzi:
Carnegie Mellon Univ, Inst Robot, Pittsburgh, PA 15213 USA Carnegie MellonUniv Pittsburgh PA USA 15213 ot, Pittsburgh, PA 15213 USA Korea Adv Inst Sci & Technol, Dept Elect Engn & Comp Sci, Yusong Gu, Taejon 305701, South Korea Korea Adv Inst Sci & Technol Taejon South Korea 305701 5701, South Korea
Titolo Testata:
GRAPHICAL MODELS
fascicolo: 2, volume: 63, anno: 2001,
pagine: 87 - 105
SICI:
1524-0703(200103)63:2<87:ACATMM>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
INTERPOLATION; QUATERNIONS;
Keywords:
multiresolution analysis; coordinate-invariance; hierarchical techniques; motion editing; motion signal processing;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Engineering, Computing & Technology
Citazioni:
27
Recensione:
Indirizzi per estratti:
Indirizzo: Lee, J Carnegie Mellon Univ, Inst Robot, 5000 Forbes Ave, Pittsburgh, PA 15213 USA Carnegie Mellon Univ 5000 Forbes Ave Pittsburgh PA USA 15213 13 USA
Citazione:
J. Lee e S.Y. Shin, "A coordinate-invariant approach to multiresolution motion analysis", GRAPH MODEL, 63(2), 2001, pp. 87-105

Abstract

Multiresolution motion analysis has gained considerable research interest as a unified framework to facilitate a variety of motion editing tasks. Within this framework, motion data are represented as a collection of coefficients that form a coarse-to-fine hierarchy. The coefficients at the coarsestlevel describe the global pattern of a motion signal, while those at fine levels provide details at successively finer resolutions. Due to the inherent nonlinearity of the orientation space, the challenge is to generalize multiresolution representations for motion data that contain orientations as well as positions. Our goal is to develop a multiresolution analysis methodthat guarantees coordinate-invariance without singularity. To do so, we employ two novel ideas: hierarchical displacement mapping and motion filtering. Hierarchical displacement mapping provides an elegant formulation to describe positions and orientations in a coherent manner. Motion filtering enables us to separate motion details level-by-level to build a multiresolution representation in a coordinate-invariant way. Our representation facilitates multiresolution motion editing through level-wise coefficient manipulation that uniformly addresses issues raised by motion modification, blending, and stitching. (C) 2001 Academic Press.

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Documento generato il 18/01/20 alle ore 13:09:01