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Motion Parameterization with Inverse Blending [chapter]

Yazhou Huang, Marcelo Kallmann
2010 Lecture Notes in Computer Science  
Motion blending is a popular motion synthesis technique which interpolates similar motion examples according to blending weighs parameterizing high-level characteristics of interest.  ...  Our several experimental results demonstrate that the proposed optimization approach is simple to implement and effectively achieves realistic results with precise motion control.  ...  Action Parameterization with Inverse Blending Parameterized Character Locomotion with Inverse Blending This section demonstrates our inverse blending framework for generating parameterized walking motions  ... 
doi:10.1007/978-3-642-16958-8_23 fatcat:xavmvnumkbhyxj23o47ncghstm

Interactive Motion Modeling and Parameterization by Direct Demonstration [chapter]

Carlo Camporesi, Yazhou Huang, Marcelo Kallmann
2010 Lecture Notes in Computer Science  
to well represent the variations of interest for a given motion being modeled; and (3) we also present an inverse blending optimization technique which solves the problem of precisely parameterizing a  ...  In order to improve this situation, we propose a framework based on the direct demonstration and parameterization of motions.  ...  Our inverse blending technique can handle any generic parameterizations as long as suitable motion clusters can be provided.  ... 
doi:10.1007/978-3-642-15892-6_9 fatcat:a3yog3khnvelxdw4kyh54eqnka

An Analysis of Motion Blending Techniques [chapter]

Andrew Feng, Yazhou Huang, Marcelo Kallmann, Ari Shapiro
2012 Lecture Notes in Computer Science  
The main idea is to blend similar motion examples according to blending weights, in order to synthesize new motions parameterizing high level characteristics of interest.  ...  We present in this paper an in-depth analysis and comparison of four motion blending techniques: Barycentric interpolation, Radial Basis Function, K-Nearest Neighbors and Inverse Blending optimization.  ...  Each motion M i being blended is represented as a sequence of poses with a discrete time (or frame) parameterization t.  ... 
doi:10.1007/978-3-642-34710-8_22 fatcat:m6dg7lwqyrbxta5f2amx6436u4

Interactive Animation of 4D Performance Capture

Dan Casas, Margara Tejera, Jean-Yves Guillemaut, Adrian Hilton
2013 IEEE Transactions on Visualization and Computer Graphics  
A real-time mesh sequence blending approach is introduced, which combines the realistic deformation of previous nonlinear solutions with efficient online computation.  ...  High-level movement controls such as speed and direction are achieved by blending multiple mesh sequences of related motions.  ...  capture together with inverse dynamic and kinematic solvers for secondary motion.  ... 
doi:10.1109/tvcg.2012.314 pmid:23492379 fatcat:heeutvcgyvhbbkctg4jfwnwkmi

Motion synthesis with decoupled parameterization

Dongwook Ha, JungHyun Han
2008 The Visual Computer  
At each frame time, a parameterized motion space produces a source frame, and the target frame is synthesized by splicing the upper body of one source frame with the lower body of the other.  ...  The techniques sample the parameter space using example motions, and interpolate them to compute the blend weights corresponding to the given parameters.  ...  The inverse of the parameterization function is then to be computed, but computing the inverse is an ill-posed problem [12] .  ... 
doi:10.1007/s00371-008-0239-7 fatcat:htysjgkeefaopi52y3wuge37wq

Interval-Based Motion Blending for Hand Grasping [article]

Matt Brisbin, Bedrich Benes
2007 Computer Graphics and Visual Computing  
For motion to appear realistic and believable proper motion blending methods must be used in respect to the goal or task at hand.  ...  Our goal is to retain the physical characteristics of motion capture data while using non-destructive blending in a goal-based scenario.  ...  Section 3 discusses the methodology will use implement the motion blending of hand grasping scenarios. Lastly, Section 4 will conclude with an overview of our method.  ... 
doi:10.2312/localchapterevents/tpcg/tpcg07/201-205 dblp:conf/tpcg/BrisbinB07 fatcat:z5xebi7g2fhrbh4tyysnu2nqua

Immersive Interfaces for Building Parameterized Motion Databases [chapter]

Yazhou Huang, Carlo Camporesi, Marcelo Kallmann
2012 Lecture Notes in Computer Science  
We present new interface tools for the interactive motion modeling and construction of parameterized motion databases for virtual agents.  ...  The tools provide different forms of visual exploration of database coverage, providing an intuitive way to model and refine motions by direct demonstration.  ...  The coverage refers to how well each motion cluster is parametrized using inverse blending [4] from the discrete examples in order to satisfy specified spatial constraints.  ... 
doi:10.1007/978-3-642-33197-8_50 fatcat:wvf44ginffathnu4vzswyvnlaq

Hierarchical Motion Controllers for Real-Time Autonomous Virtual Humans [chapter]

Marcelo Kallmann, Stacy Marsella
2005 Lecture Notes in Computer Science  
The hierarchical organization implies that leaf controllers are motion generators while the other nodes are connectors, performing operations such as interpolation, blending, and precise scheduling of  ...  We also describe how the system can correctly handle the synchronization of gestures with speech in order to achieve believable conversational characters.  ...  On the other hand, some motions such as deictics/pointing can usually be synthesized with different Inverse Kinematics techniques [11] [12] .  ... 
doi:10.1007/11550617_22 fatcat:f2pl7xcprbabjjgvmqi2qi4k6a

Interactive Demonstration of Pointing Gestures for Virtual Trainers [chapter]

Yazhou Huang, Marcelo Kallmann
2009 Lecture Notes in Computer Science  
The proposed system integrates motion segmentation, clustering and interactive motion blending in order to enable a seamless interface for programming motions by demonstration.  ...  In order to improve this situation this paper proposes a framework based on the direct demonstration of motions via a simplified and easy to wear set of motion capture sensors.  ...  We employ parameterized motion blending techniques [5] in order to achieve realistic results which can be adapted and parameterized, and we also take into account on-line motion demonstrations for the  ... 
doi:10.1007/978-3-642-02577-8_20 fatcat:lm663u4v7ff5vo4kssrgwkznoe

An example-based motion synthesis technique for locomotion and object manipulation

Andrew W. Feng, Yuyu Xu, Ari Shapiro
2012 Proceedings of the ACM SIGGRAPH Symposium on Interactive 3D Graphics and Games - I3D '12  
Hand Motion The motion blending with inverse kinematics enables the character to point his hand at a precise location in space.  ...  Motion Blending. Motion blending provides a simple yet powerful method to generate realistic human motions by parameterizing existing motion data.  ... 
doi:10.1145/2159616.2159632 dblp:conf/si3d/FengXS12 fatcat:ufvmpdv65nae3mv3dg3w46mkvq

Motion synthesis and editing in low-dimensional spaces

Hyun Joon Shin, Jehee Lee
2006 Computer Animation and Virtual Worlds  
parameterized, and interpolated in both spatial and temporal domains.  ...  The data-driven keyframing capability of our system was demonstrated with two sets of motion data: walk-and-pick and boxing.  ...  The graph of 3D sample nodes provides us with capability to solve an inverse kinematics problem by blending existing example data.  ... 
doi:10.1002/cav.125 fatcat:fwuazksynjcdvpyvyfaomchiaq

Automated extraction and parameterization of motions in large data sets

Lucas Kovar, Michael Gleicher
2004 ACM Transactions on Graphics  
This paper provides automated methods for identifying logically similar motions in a data set and using them to build a continuous and intuitively parameterized space of motions.  ...  Once a set of related motions has been extracted, we automatically register them and apply blending techniques to create a continuous space of motions.  ...  Acknowledgements: This work was made possible through motion data donations from House of Moves and Demian Gordon and financial support from NSF grants CCR-9984506 and CCR-0204372.  ... 
doi:10.1145/1015706.1015760 fatcat:wvbt7yat35hdxlvef4hrwct53u

Automated extraction and parameterization of motions in large data sets

Lucas Kovar, Michael Gleicher
2004 ACM SIGGRAPH 2004 Papers on - SIGGRAPH '04  
This paper provides automated methods for identifying logically similar motions in a data set and using them to build a continuous and intuitively parameterized space of motions.  ...  Once a set of related motions has been extracted, we automatically register them and apply blending techniques to create a continuous space of motions.  ...  Acknowledgements: This work was made possible through motion data donations from House of Moves and Demian Gordon and financial support from NSF grants CCR-9984506 and CCR-0204372.  ... 
doi:10.1145/1186562.1015760 fatcat:4h5lmngxsnbhfiynxzswj5fehe

On-line locomotion generation based on motion blending

Sang Il Park, Hyun Joon Shin, Sung Yong Shin
2002 Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation - SCA '02  
Finally, we show how to adapt the blended motion to the target character and the environment in an on-line, real-time manner.  ...  However, the previous methods can hardly generate the convincing locomotion of a character following a curved path with a desired speed and style.  ...  Provided with a vector of parameters, we blend the parameterized example motions to generate the corresponding motion at each frame.  ... 
doi:10.1145/545278.545279 fatcat:to7hszuthvezldrjdcn2gwgeee

On-line locomotion generation based on motion blending

Sang Il Park, Hyun Joon Shin, Sung Yong Shin
2002 Proceedings of the 2002 ACM SIGGRAPH/Eurographics symposium on Computer animation - SCA '02  
Finally, we show how to adapt the blended motion to the target character and the environment in an on-line, real-time manner.  ...  However, the previous methods can hardly generate the convincing locomotion of a character following a curved path with a desired speed and style.  ...  Provided with a vector of parameters, we blend the parameterized example motions to generate the corresponding motion at each frame.  ... 
doi:10.1145/545261.545279 dblp:conf/sca/ParkSS02 fatcat:xgf2hkijfjdxzkg7fz4oupfw2m
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