A morphable model for the synthesis of 3D faces

A Survey of Computer Vision-Based Human Motion Capture

The bottle-neck in most cloth simulation systems is that time steps must be small to avoid numerical instability. This paper describes a cloth simulation system that can stably take large time steps. The simulation system couples a new technique for enforcing constraints on individual cloth particles with an implicit integration method. The simulator models cloth as a triangular mesh, with internal cloth forces derived using a simple continuum formulation that supports modeling operations such as local anisotropic stretch or compression; a unified treatment of damping forces is included as well. The implicit integration method generates a large, unbanded sparse linear system at each time step which is solved using a modified conjugate gradient method that simultaneously enforces particles’ constraints. The constraints are always maintained exactly, independent of the number of conjugate gradient iterations, which is typically small. The resulting simulation system is significantly faster than previous accounts of cloth simulation systems in the literature.

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Large steps in cloth simulation

Recent developments in human motion analysis

Last Child in the Woods: Saving Our Children From Nature-Deficit Disorder

Algorithms and methods are presented for animating the hands of a synthetic actor. The algorithms allow the land to move and grasp objects; they also compute deformations of the hand as it moves. The mapping of surfaces onto the skeleton is based on the concept of joint-dependent local deformation (JLD) operators, which are specific local deformation operators depending on the nature of the joints. The major problem in the hand covering process is the calculation of the coordinate bases. The key to the method was to find a model for calculating the bases which was sophisticated enough for the simulation of complex motions. Several examples are shown and the user interface introduced into the human factory system is also described

Joint-dependent local deformations for hand animation and object grasping

Research into the methods and techniques used in simulating crowds has developed extensively within the last few years, particularly in the areas of video games and film. Despite recent impressive results when simulating and rendering thousands of individuals, many challenges still exist in this area. The comparison of simulation with reality, the realistic appearance of virtual humans and their behavior, group structure and their motion, and collision avoidance are just some examples of these challenges. For most of the applications of crowds, it is now a requirement to have real-time simulations which is an additional challenge, particularly when crowds are very large. Crowd Simulation analyses these challenges in depth and suggests many possible solutions. Daniel Thalmann and Soraia Musse share their experiences and expertise in the application of: Population modeling Virtual human animation Behavioral models for crowds The connection between virtual and real crowds Path planning and navigation Visual attention models Geometric and populated semantic environments Crowd rendering The second edition presents techniques and methods developed since the authors first covered the simulation of crowds in 2007. Crowd Simulation includes in-depth discussions on the techniques of path planning, including a new hybrid approach between navigation graphs and potential-based methods. The importance of gaze attention individuals appearing conscious of their environment and of others is introduced, and a free-of-collision method for crowds is also discussed.

Crowd Simulation

An overview of biomechanical modeling of human soft tissue using nonlinear theoretical mechanics and incremental finite element methods, useful for computer simulation of the human musculoskeletal system.

Biomechanical Models for Soft Tissue Simulation

Concepts in networked virtual environments a taxonomy of networked virtual environments the VLNET system virtual human representation facial and gestural communication networking virtual human data standards for NVES and virtual humans applications and experiments.

Avatars in Networked Virtual Environments

This cloth-modeling and animation system aims to support virtual actors who can dress and undress themselves. It now creates autonomous clothes, independent of the synthetic human wearing them.

Daniel Thalmann

Papers

Joint-dependent local deformations for hand animation and object grasping

Crowd Simulation

Biomechanical Models for Soft Tissue Simulation

Avatars in Networked Virtual Environments

An evolving system for simulating clothes on virtual actors : CG in textiles and apparel