| Date post: | 17-Dec-2015 |
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Vision based AnimationVision based AnimationThe Inverse of an Inverse ProblemThe Inverse of an Inverse Problem
Henning BiermannChris BreglerAaron HertzmannLorie LoebKathy PullenDanny Yang
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The Standard Vision PipelineThe Standard Vision Pipeline
Image / Video
Recognition
Modeling
Capture
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Vision for Graphics / AnimationVision for Graphics / Animation
Image / Video
Image / Video
Synthesis
Modeling
Capture
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Vision for Graphics / AnimationVision for Graphics / Animation
Image / Video
Expressive Animations
Modeling
Capture
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The Standard AnalogyThe Standard Analogy
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The Graphics ProblemThe Graphics Problem
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The Vision ProblemThe Vision Problem
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Vision Based AnimationVision Based Animation
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Vision for GraphicsVision for Graphics
Image / Video
Image / Video
Synthesis
Modeling
Capture
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Vision for GraphicsVision for Graphics
Image / Video
Image / Video
Synthesis
RicherModeling
Capture
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Vision for AnimationVision for Animation
Image / Video
Image / Video
KinematicsDynamics
Synthesis
Capture
RicherModeling
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Models: 2 IssuesModels: 2 Issues
• Explicit / Implicit tradeoff:
Hand Coded Learned
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Models: 2 IssuesModels: 2 Issues
• Explicit / Implicit tradeoff:
Hand Coded Learned
MX Y
Analytically derived Fit Black-Box
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Models: 2 IssuesModels: 2 Issues
• Explicit / Implicit tradeoff:
• Model / Data tradeoff:
Pure Model Pure Data
Analytical Learned
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Models: 2 IssuesModels: 2 Issues
• Explicit / Implicit tradeoff:
• Model / Data tradeoff:
Pure Model Pure Data
Analytical Learned
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Case #1: Models of Kinematics Case #1: Models of Kinematics
- Approximate Kinematic Chains.
- Fine-tune Kinematic Chains.
- Acquisition of Nonrigid Models.
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Approximate Kinematic Chains Approximate Kinematic Chains
- Enough for Animation ?
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Case #1: Models of Kinematics Case #1: Models of Kinematics
- Approximate Kinematic Chains.
- Fine-tune Kinematic Chains.
- Acquisition of Nonrigid Models.
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Fine-Tune KinematicsFine-Tune Kinematics
Anna Rabinowicz
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Fine-Tune KinematicsFine-Tune Kinematics
Kathy Pullen
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Case #1: Models of Kinematics Case #1: Models of Kinematics
- Approximate Kinematic Chains.
- Fine-tune Kinematic Chains.
- Acquisition of Nonrigid Models.
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Acquisition of Nonrigid 3D Kinematics Acquisition of Nonrigid 3D Kinematics
With Gene Alexander, Henning Biermann, Aaron Hertzmann, Lorenzo Torresani, Danny Yang
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Solution for Non-rigid Tracking / ReconstructionSolution for Non-rigid Tracking / Reconstruction
- Prior Model:
2D: PCA-based (Cootes et al 95) 3D: Blanz+Vetter-99
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3D Model Acquisition3D Model Acquisition
- Multi-view input: Pighin et al 98
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Solution for Rigid 3D AcquisitionSolution for Rigid 3D Acquisition
Structure from Motion:
- Tomasi-Kanade-92
Factorization
3D Pose3D rigid Object
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Acquisition without prior model ?Acquisition without prior model ?
• No Model available ?
• Model too generic/specific ?
• Stock-Footage only in 2D ?
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Solution based on Factorization Solution based on Factorization
- We want 3 things:- 3D non-rigid shape model- for each frame:
- 3D Pose- non-rigid configuration (deformation)
-> Tomasi-Kanade-92:
W = P S
Rank 3
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Solution based on Factorization Solution based on Factorization
- We want 3 things:- 3D non-rigid shape model- for each frame:
- 3D Pose- non-rigid configuration (deformation)
-> PCA-based representations:
W = P non-rigid S
Rank K
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Factoring twice Factoring twice
-
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Nonrigid 3D Kinematics from point tracks Nonrigid 3D Kinematics from point tracks
-
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Nonrigid 3D Kinematics from dense flow Nonrigid 3D Kinematics from dense flow
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Nonrigid 3D Kinematics from dense flow Nonrigid 3D Kinematics from dense flow
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Nonrigid 3D Kinematics from dense flow Nonrigid 3D Kinematics from dense flow
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Motion Capture
Modeling
Synthesis
Nonrigid 3D Kinematics from dense flow Nonrigid 3D Kinematics from dense flow
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Case #2: Models of Dynamics Case #2: Models of Dynamics
Pure Model Pure Data
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Case #2: Models of Dynamics Case #2: Models of Dynamics
Pure Model Pure Data
Learning Controller Mocap. Library
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Case #2: Models of Dynamics Case #2: Models of Dynamics
Pure Model Pure Data
Parametric Non-Parametric
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Case #2: Models of Dynamics Case #2: Models of Dynamics
Pure Model Pure Data
Kernel-Based Densities
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Case #2: Models of Dynamics Case #2: Models of Dynamics
Kathy Pullen
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Case #2: Models of Dynamics Case #2: Models of Dynamics
“Motion Texture”
Sampling /Matching
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Case #2: Models of Dynamics Case #2: Models of Dynamics
P(Li | Lj)
Sampling / Matching:
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Synthesizing Synthesizing Subtleties + VariationsSubtleties + Variations
Kathy Pullen
Motion Capture
Modeling
Synthesis
2/14/00
Synthesizing Synthesizing Subtleties + VariationsSubtleties + Variations
Kathy Pullen
Motion Capture
Modeling
Synthesis
2/14/00
Synthesizing Synthesizing Subtleties + VariationsSubtleties + Variations
Kathy Pullen
Motion Capture
Modeling
Synthesis
2/14/00
Synthesizing Synthesizing Subtleties + VariationsSubtleties + Variations
Kathy Pullen
Motion Capture
Modeling
Synthesis
2/14/00
Synthesizing Synthesizing Subtleties + VariationsSubtleties + Variations
Kathy Pullen
Motion Capture
Modeling
Synthesis
2/14/00
Vision Based AnimationVision Based Animation
Animations
KinematicsDynamics
RicherModeling
2/14/00
Human Movement ResearchHuman Movement Research
Computer Science:Vision / Graphics
Bio-Mechanics:Motion Models/Analysis
Art:Animation / Dance
Medicine/ Neurology:Movement Disorders
2/14/00
Model
Data
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Model
Data
Expressive AnimationExpressive Animation
2/14/00
Human Movement ResearchHuman Movement Research
Computer Science:Vision / Graphics
Bio-Mechanics:Motion Models/Analysis
Art:Animation / Dance
Medicine/ Neurology:Movement Disorders
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Project Mariposa: Animation PrinciplesProject Mariposa: Animation Principles
Lorie Loeb
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Project Mariposa: Animation PrinciplesProject Mariposa: Animation Principles
Lorie Loeb
Realism is out
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Project Mariposa: Animation PrinciplesProject Mariposa: Animation Principles
Lorie Loeb
Realism is out
Expressiveness is in
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Model
Data
Expressive AnimationExpressive Animation
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Model
Data
Controversy: Motion-Capture based AnimationControversy: Motion-Capture based Animation
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Model
Data
Controversy: Motion-Capture based AnimationControversy: Motion-Capture based Animation
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Model
Data
Controversy: Motion-Capture based AnimationControversy: Motion-Capture based Animation
2/14/00
Model
Data
Controversy: Motion-Capture based AnimationControversy: Motion-Capture based Animation
2/14/00
Synthesis by AnalysisSynthesis by Analysis
Animations
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Enough for Animation ?Enough for Animation ?
Expressive Animations
Video/Mocap
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Expressive AnimationExpressive Animation
Expressive Output
CartoonCapture
![Technical Datasheet - Veracious Inc · Inverse Characteristics Curve [Over Current IDMT]: Very Inverse Long Inverse Standard Inverse Extremely Inverse α C 0.02 1 2 1 0.14 13.5 80](https://static.documents.pub/doc/80x56/60dab49f5dabad678957ab65/technical-datasheet-veracious-inc-inverse-characteristics-curve-over-current.jpg)
