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 thesis, 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 the thesis 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 realworld human performances, exceeding the capabilities of many related capture techniques. By this means, we are able to correctly capture the motion, the timevarying 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.

lgrsnf/R:\062020\springer2\10.1007%2F978-90-481-3341-3.pdf

nexusstc/Infinite Regress Arguments/16416a7eb45e10007e733ec807589eec.pdf

scihub/10.1007/978-90-481-3341-3.pdf

zlib/Computers/Computer Science/Claude Gratton (auth.)/Infinite Regress Arguments_5922850.pdf

Gratton, Claude

Springer Science + Business Media BV

Argumentation library -- v. 17, Dordrecht, New York, Netherlands, 2010

Argumentation library, New York, Feb. 2010

Argumentation library, Dordrecht, 2009

Springer Nature, Dordrecht, 2010

Netherlands, Netherlands

2009, 2010

sm41117495

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Includes bibliographical references (p. 203-207) and index.

Infinite regress arguments are part of a philosopher's tool kit of argumentation. But how sharp or strong is this tool? How effectively is it used? The typical presentation of infinite regress arguments throughout history is so succinct and has so many gaps that it is often unclear how an infinite regress is derived, and why an infinite regress is logically problematic, and as a result, it is often difficult to evaluate infinite regress arguments. These consequences of our customary way of using this tool indicate that there is a need for a theory to re-orient our practice.
My general approach to contribute to such a theory, consists of collecting and evaluating as many infinite regress arguments as possible, comparing and contrasting many of the formal and non-formal properties, looking for recurring patterns, and identifying the properties that appeared essential to those patterns. Two very general questions guided this work: (1) How are infinite regresses generated in infinite regress arguments? (2) How do infinite regresses logically function as premises in an argument? In answering these questions I clarify the notion of an infinite regress; identify different logical forms of infinite regresses; describe different kinds of infinite regress arguments; distinguish the rhetoric from the logic in infinite regress arguments; and suggest ways of improving our discussion and our practice of constructing and evaluating these arguments.

Front Matter....Pages i-xii
What is an Infinite Regress Argument?....Pages 1-56
The Formal and Nonformal Logic of Infinite Concatenating Regresses....Pages 57-100
Viciousness....Pages 101-130
Circular Definitions, Circular Explanations, and Infinite Regresses....Pages 131-146
Infinite Regresses and Recurring Questions....Pages 147-157
Infinite Regresses of Recurring Problems and Responses....Pages 159-192
Back Matter....Pages 193-211

Argumentation Library
Erscheinungsdatum: 04.02.2010

2020-08-30