TY  - BOOK
AU  - Aguiar,Edilson
ED  - SpringerLink (Online service)
TI  - Animation and Performance Capture Using Digitized Models
T2  - Cognitive Systems Monographs,
SN  - 9783642103162
AV  - T385 
U1  - 006.6 23
PY  - 2010///
CY  - Berlin, Heidelberg
PB  - Springer Berlin Heidelberg
KW  - Computer science
KW  - Computer vision
KW  - Computer graphics
KW  - Computer Science
KW  - Computer Graphics
KW  - Computer Imaging, Vision, Pattern Recognition and Graphics
KW  - Image Processing and Computer Vision
KW  - Computer Applications
N1  - I: Background and Basic Definitions -- Preliminary Techniques -- Interactive Shape Deformation and Editing Methods -- Recording Studio: Data Acquisition and Data Processing -- II: Natural Animation of Digitized Models -- Problem Statement and Preliminaries -- Poisson-Based Skeleton-Less Character Animation -- Laplacian-Based Skeleton-Less Character Animation -- III: Towards Performance Capture Using Deformable Mesh Tracking -- Problem Statement and Preliminaries -- Video-Based Tracking of Scanned Humans -- Feature Tracking for Mesh-Based Performance Capture -- Video-Based Performance Capture -- High-Quality 3D Videos -- IV: Processing Mesh Animations -- Problem Statement and Preliminaries -- Reconstructing Fully-Rigged Characters -- Designing Non-photorealistic Animation Collages -- Conclusions
N2  - The realistic generation of virtual doubles of real-world actors has been the focus of computer graphics research for many years. However, some problems still remain unsolved: it is still time-consuming to generate character animations using the traditional skeleton-based pipeline, passive performance capture of human actors wearing arbitrary everyday apparel is still challenging, and until now, there is only a limited amount of techniques for processing and modifying mesh animations, in contrast to the huge amount of skeleton-based techniques. In this work, we propose algorithmic solutions to each of these problems. First, two efficient mesh-based alternatives to simplify the overall character animation process are proposed. Although abandoning the concept of a kinematic skeleton, both techniques can be directly integrated in the traditional pipeline, generating animations with realistic body deformations. Thereafter, three passive performance capture methods are presented which employ a deformable model as underlying scene representation. The techniques are able to jointly reconstruct spatio-temporally coherent time-varying geometry, motion, and textural surface appearance of subjects wearing loose and everyday apparel. Moreover, the acquired high-quality reconstructions enable us to render realistic 3D Videos. At the end, two novel algorithms for processing mesh animations are described. The first one enables the fully-automatic conversion of a mesh animation into a skeletonbased animation and the second one automatically converts a mesh animation into an animation collage, a new artistic style for rendering animations. The methods described in this book can be regarded as solutions to specific problems or important building blocks for a larger application. As a whole, they form a powerful system to accurately capture, manipulate and realistically render real-world human performances, exceeding the capabilities of many related capture techniques. By this means, we are able to correctly capture the motion, the time-varying details and the texture information of a real human performing, and transform it into a fully-rigged character animation, that can be directly used by an animator, or use it to realistically display the actor from arbitrary viewpoints
UR  - http://148.231.10.114:2048/login?url=http://link.springer.com/book/10.1007/978-3-642-10316-2
ER  -