Slides - Geometric Algorithms for Modeling, Motion, and Animation

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Mesh Reconstruc,on => Collision • Reconstruc,on process is not robust, and is sensi,ve to noise and high order features • Reconstruc,on process is slow (few seconds) • Error in reconstructed result can be amplified by subsequent collision checking • The final result is YES/NO answer, which is sensi,ve to noise.
Our Solu,on • Return to the basic defini,on of collision-‐free – Two objects are collision-‐free if they are separable by a con,nuous surface and is in-‐collision when such surface does not exist.
Page 1 and 2: Real-‐Time Mo,on Planning and H
Page 4 and 5: Sample-‐based Planners • Coll
Page 6 and 7: Prior work on collision checking
Page 8 and 9: Mo9on Planning for Physical Robots
Page 10 and 11: Mo9on Planning for Physical Robots
Page 12 and 13: Robot Sensors: Data Collec,on Camer
Page 14 and 15: Demonstra,on of Point Cloud Data In
Page 16 and 17: Kinect Sensors http://graphics.stan
Page 18 and 19: Handling Noisy Point Cloud Data •
Page 20 and 21: Errors in Point Clouds Position err
Page 22 and 23: Handling Point Cloud Collision: Two
Page 26 and 27: Classifica,on-‐based Collision
Page 28 and 29: Standard SVM Robust Classifica,on R
Page 30 and 31: Probabilis,c Collision between Two
Page 32 and 33: Results: Small Noise Deep Collision
Page 34 and 35: PR2 Robot Sensor Results Deep Colli
Page 36 and 37: Benefit • Speed is comparable to
Page 38 and 39: Mobile Manipulators: Onboard Comput
Page 40 and 41: Real-‐,me Mo,on Planning • Co
Page 42 and 43: Current GPU Architectures Host Grid
Page 44 and 45: GPGPU: GPUs for non-‐graphics a
Page 46 and 47: Probabilis,c Roadmap Method • Use
Page 48 and 49: Our GPU-‐based Pipeline
Page 50 and 51: Parallel Sampling • Real parallel
Page 52 and 53: BoBlenecks • High number of colli
Page 54 and 55: • Construct BVH on GPU BVH Constr
Page 56 and 57: GPU-‐based Parallel Algorithms
Page 58 and 59: GPU Memory Model • Shared memory
Page 60 and 61: Our Solu,ons • Parallel Collision
Page 62 and 63: Query Clustering • Find clusters
Page 64 and 65: Parallel Collision Query with Workl
Page 66 and 67: Core 1 Task 0 Task i External Task
Page 68 and 69: K-‐nearest neighbor computa,on
Page 70 and 71: Graph Search • Currently perform
Page 73 and 74: Timing Results: Collision Checking
Page 75 and 76:
Overall Performance • Our paralle
Page 77 and 78:
Preliminary Results • Scale well
Page 79 and 80:
Applica,ons to PR2 Model • DOF 12
Page 81:
Results: PR2 Model
Page 84 and 85:
• Funding agencies - ARO - NSF Ac
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Slides - Geometric Algorithms for Modeling, Motion, and Animation

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