Three-dimensional alpha shapes
ACM Transactions on Graphics (TOG)
Creation and rendering of realistic trees
SIGGRAPH '95 Proceedings of the 22nd annual conference on Computer graphics and interactive techniques
Particle Systems—a Technique for Modeling a Class of Fuzzy Objects
ACM Transactions on Graphics (TOG)
The use of positional information in the modeling of plants
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Interactive Modeling of Plants
IEEE Computer Graphics and Applications
Volumetric reconstruction and interactive rendering of trees from photographs
ACM SIGGRAPH 2004 Papers
Skeletal Parameter Estimation from Optical Motion Capture Data
CVPR '05 Proceedings of the 2005 IEEE Computer Society Conference on Computer Vision and Pattern Recognition (CVPR'05) - Volume 2 - Volume 02
Automatic determination of facial muscle activations from sparse motion capture marker data
ACM SIGGRAPH 2005 Papers
From motion capture data to character animation
Proceedings of the ACM symposium on Virtual reality software and technology
Hierarchical retargetting of 2D motion fields to the animation of 3D plant models
Proceedings of the 2006 ACM SIGGRAPH/Eurographics symposium on Computer animation
ACM SIGGRAPH 2007 papers
Approximate image-based tree-modeling using particle flows
ACM SIGGRAPH 2007 papers
Knowledge and heuristic-based modeling of laser-scanned trees
ACM Transactions on Graphics (TOG)
Facial performance synthesis using deformation-driven polynomial displacement maps
ACM SIGGRAPH Asia 2008 papers
Self-organizing tree models for image synthesis
ACM SIGGRAPH 2009 papers
Real-time automatic kinematic model building for optical motion capture using a Markov random field
HCI'07 Proceedings of the 2007 IEEE international conference on Human-computer interaction
Example-Based Human Motion Denoising
IEEE Transactions on Visualization and Computer Graphics
Automatic reconstruction of tree skeletal structures from point clouds
ACM SIGGRAPH Asia 2010 papers
Motion capture for a natural tree in the wind
MIG'10 Proceedings of the Third international conference on Motion in games
Texture-lobes for tree modelling
ACM SIGGRAPH 2011 papers
Modeling and generating moving trees from video
Proceedings of the 2011 SIGGRAPH Asia Conference
Modeling trees with a space colonization algorithm
NPH'07 Proceedings of the Third Eurographics conference on Natural Phenomena
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Recovering tree shape frommotion capture data is a first step toward efficient and accurate animation of trees in wind usingmotion capture data. Existing algorithms for generating models of tree branching structures for image synthesis in computer graphics are not adapted to the unique data set provided by motion capture. We present a method for tree shape reconstruction using particle flow on input data obtained from a passive optical motion capture system. Initial branch tip positions are estimated from averaged and smoothed motion capture data. Branch tips, as particles, are also generated within a bounding space defined by a stack of bounding boxes or a convex hull. The particle flow, starting at branch tips within the bounding volume under forces, creates tree branches. The forces are composed of gravity, internal force, and external force. The resulting shapes are realistic and similar to the original tree crown shape. Several tunable parameters provide control over branch shape and arrangement.