Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford
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1 Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford
2 Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford tl;dr; Yes
3 Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford
4 Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford tl;dr; It depends
5 Dynamic and Uncertain Environment Robot System Design
6 Dynamic and Uncertain Environment Robot System Design
7 Dynamic and Uncertain Environment Robot System Design Real-Time Perception meets Reactive Motion Generation
8 World Model Object Tracker Camera Arm Tracker Joint Sensors Motion Optimizer Robot State Acceleration Policies World Interaction Robot Torques Inverse Dynamics Controller Kappler et al. Real-Time Perception meets Reactive Motion Generation. RA-L + ICRA 18. Finalist 2018 Amazon Best Systems Paper
9 One time step in the system
10 One time step in the system Raw Sensory Data 30Hz-1kHz
11 One time step in the system Raw Sensory Data Processed Sensory Data 30Hz-1kHz 15-30Hz
12 One time step in the system Raw Sensory Data Processed Sensory Data Local and optimised policies 30Hz-1kHz 15-30Hz 30kHz 5-10Hz
13 One time step in the system Raw Sensory Data Processed Sensory Data Local and optimised policies Fused Policy 30Hz-1kHz 15-30Hz 30kHz 5-10Hz 30 khz
14 One time step in the system Raw Sensory Data Processed Sensory Data Local and optimised policies Fused Policy 30Hz-1kHz 15-30Hz 30kHz 5-10Hz 30 khz Robot Controlled at 1kHz
15 System-Level Evaluation
16 System-Level Evaluation Sense-Plan-Act
17 System-Level Evaluation Sense-Plan-Act Feedback Control
18 System-Level Evaluation Sense-Plan-Act Feedback Control Full System
19 System-Level Evaluation Static Pick and Place Dynamic Pick and Place Dynamic Grasping Dynamic Pointing
20 System-Level Evaluation Static Pick and Place Dynamic Pick and Place Dynamic Grasping Dynamic Pointing
21
22
23 Is Motion Planning Overrated? Jeannette Bohg - Interactive Perception and Robot Learning Lab - Stanford tl;dr; It depends
24
25 Environment Complexity
26 Success of Feedback Control Environment Complexity
27 Success of Feedback Control Environment Complexity
28 Success of Feedback Control Real-Time Perception meets Reactive Motion Generation. Kappler et al. ICRA 18 + RAL. Environment Complexity
29 Success of Feedback Control Real-Time Perception meets Reactive Motion Generation. Kappler et al. ICRA 18 + RAL. QT-Opt: Scalable Deep Reinforcement Learning for Vision-Based Robotic Manipulation. Kalashnikov et al. To appear at CORL 18. Environment Complexity
30 Success of Feedback Control Real-Time Perception meets Reactive Motion Generation. Kappler et al. ICRA 18 + RAL. Motion Planning QT-Opt: Scalable Deep Reinforcement Learning for Vision-Based Robotic Manipulation. Kalashnikov et al. To appear at CORL 18. Environment Complexity
31 Success of Feedback Control Real-Time Perception meets Reactive Motion Generation. Kappler et al. ICRA 18 + RAL. Reactive Motion Planning QT-Opt: Scalable Deep Reinforcement Learning for Vision-Based Robotic Manipulation. Kalashnikov et al. To appear at CORL 18. Environment Complexity
32 Take-Home from Systems Paper
33 Take-Home from Systems Paper Higher complexity - More planning
34 Take-Home from Systems Paper Higher complexity - More planning More uncertainty and dynamics - Online Re-Planning
35 Controlling through contact Finger Object Goal
36 Controlling through contact
37 Controlling through contact
38 Controlling through contact
39 Controlling through contact
40 Controlling through contact
41 Controlling through contact Better Models Better Feedback
42 Predictive Model
43 Predictive Model Model
44 Predictive Model Sensory Observations Model
45 Predictive Model Sensory Observations Model Action
46 Predictive Model Sensory Observations Model Action
47 Predictive Model Sensory Observations Model Predicted Effect Action
48 Predictive Model Sensory Observations Model Predicted Effect Action Model-Predictive Control
49 Predicting physical effect Goal
50 Predicting physical effect Goal
51 Predicting physical effect Goal
52 Keep Predicting Goal
53 Keep Predicting Goal
54 Our Hypothesis
55 Our Hypothesis Physics Models
56 Our Hypothesis Physics Models +
57 Our Hypothesis Physics Models + Learning
58 Our Hypothesis Physics Models + Learning = Generalization
59 Hybrid Model Sensory Observations Learned Model Parameters Physics-based Model Predicted Effect Action
60 Hybrid Model Sensory Observations End-to-End Loss on Effect Learned Model Parameters Physics-based Model Predicted Effect Action
61 Hybrid Model Extrapolation Sensory Observations End-to-End Loss on Effect Learned Model Parameters Physics-based Model Predicted Effect Action
62 Testing Hypothesis on a Case Study More than a Million Ways to Be Pushed. A High-Fidelity Experimental Dataset of Planar Pushing. Yu et al. IROS 2016.
63 Testing Hypothesis on a Case Study More than a Million Ways to Be Pushed. A High-Fidelity Experimental Dataset of Planar Pushing. Yu et al. IROS 2016.
64 Testing Hypothesis on a Case Study More than a Million Ways to Be Pushed. A High-Fidelity Experimental Dataset of Planar Pushing. Yu et al. IROS 2016.
65 Analytic Model x x x x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
66 Analytic Model x x x x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
67 Analytic Model x x x 1. Stage x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
68 Analytic Model x x x 1. Stage x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
69 Analytic Model x x x 1. Stage x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
70 Analytic Model 2. Stage x x x 1. Stage x K. M. Lynch, H. Maekawa, and K. Tanie, Manipulation and active sensing by pushing using tactile feedback, in Proc. IEEE/RSJ Int. Conf. Intelligent Robots and Systems, vol. 1, Jul 1992, pp
71 Compared Architectures Neural Network only Sensory Observations Learned Model Predicted Effect Action
72 Compared Architectures Neural Network only Hybrid Model Sensory Observations Sensory Observations Learned Model Learned Model Predicted Effect Action Action Parameters Physicsbased Model Predicted Effect
73 Compared Architectures Neural Network only Hybrid Model Error Model Sensory Observations Sensory Observations Learned Model Sensory Observations Learned Model Learned Error Learned Model Predicted Effect Action Action Parameters Model Predicted Effect Action Parameters Physicsbased Physicsbased Model Predicted Effect +
74 Compared Architectures Raw Sensory Observations Neural Network only Hybrid Model Error Model Sensory Observations Sensory Observations Learned Model Sensory Observations Learned Model Learned Error Learned Model Predicted Effect Action Action Parameters Model Predicted Effect Action Parameters Physicsbased Physicsbased Model Predicted Effect +
75 Compared Architectures Raw Sensory Observations Neural Network only Hybrid Model Error Model Sensory Observations Sensory Observations Learned Model Sensory Observations Learned Model Learned Error Learned Model Predicted Effect Action Action Parameters Model Predicted Effect Action Parameters Physicsbased Physicsbased Model Predicted Effect + Training: End-to-End Loss: Error between Predicted and Ground Truth Effect
76 Testing Data Efficiency
77 Testing Data Efficiency
78 Testing Data Efficiency
79 Testing Data Efficiency
80 Testing Generalization Alina Kloss et al, Combining learned and analytical models for predicting action effects, Submitted Pre-print on arxiv.
81 Testing Generalization New Pushing Angles & Contact Points Training Testing Interpolation Alina Kloss et al, Combining learned and analytical models for predicting action effects, Submitted Pre-print on arxiv.
82 Testing Generalization New Pushing Angles New Push Velocities & Contact Points Training Testing Training Testing Interpolation Extrapolation Alina Kloss et al, Combining learned and analytical models for predicting action effects, Submitted Pre-print on arxiv.
83 Testing Generalization New Pushing Angles & Contact Points New Push Velocities New Object Shapes Training Testing Training Testing Training Testing Interpolation Extrapolation Alina Kloss et al, Combining learned and analytical models for predicting action effects, Submitted Pre-print on arxiv.
84 Generalization to new push velocities Training Testing
85 Generalization to new push velocities Training Testing Extrapolation
86 Generalization to new push velocities Training Testing Extrapolation
87 Generalization to new push velocities Training Testing
88 Generalization to new push velocities Training Testing Extrapolation
89 Generalization to new push velocities Training Testing
90 Generalization to new push velocities Training Testing Extrapolation
91 Generalization to new push velocities Training Testing
92 Generalization to new push velocities Training Testing Extrapolation
93 Don t throw away structure
94 Learn to extract given state representation from raw data
95 A Concrete Suggestion Sensory Observations End-to-End Loss on Effect Learned Model Parameters Physics-based Model Predicted Effect Action
96 Interpretability
97 Interpretability Real and Predicted Box Position after 200 identical pushes Representation interpretable
98 Compensation for Errors in Analytical Model Wrong Friction Parameters of Analytical Model
99 Future Direction Sequence of Sensory Observation Learned Model Parameters Physics-based Model Predicted Effect Action
100 Future Direction Sequence of Sensory Observation Learned Model Parameters Physics-based Model Predicted Effect Action Multistep Prediction
101 Future Direction Sequence of Sensory Observation Backpropagation w. r. t. control Learned Model Parameters Physics-based Model Predicted Effect Action Multistep Prediction
102 Models will never be perfect
103 Differentiable Recursive Filtering Jonschkowski et al. RSS 18 Haarnoja et al. NIPS 16 Karkus et al. arxiv 18 Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
104 Learning Heteroscedastic Noise On Learning Heteroscedastic Noise Models within Differentiable Filtering. Kloss and Bohg. Submitted to ICLR 19. Picture adapted from: Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
105 Learning Heteroscedastic Noise Observation Noise On Learning Heteroscedastic Noise Models within Differentiable Filtering. Kloss and Bohg. Submitted to ICLR 19. Picture adapted from: Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
106 Learning Heteroscedastic Noise Observation Noise Process Noise On Learning Heteroscedastic Noise Models within Differentiable Filtering. Kloss and Bohg. Submitted to ICLR 19. Picture adapted from: Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
107 Learning Heteroscedastic Noise Observation Noise Process Noise On Learning Heteroscedastic Noise Models within Differentiable Filtering. Kloss and Bohg. Submitted to ICLR 19. Picture adapted from: Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
108 Learning Heteroscedastic Noise Observation Noise Process Noise On Learning Heteroscedastic Noise Models within Differentiable Filtering. Kloss and Bohg. Submitted to ICLR 19. Picture adapted from: Differentiable Particle Filters: End-to-End Learning with Algorithmic Priors. Jonschkowski et al. RSS 18
109 Four Non-Linear Filters
110 Four Non-Linear Filters Extended Kalman Filter
111 Four Non-Linear Filters Extended Kalman Filter Unscented Kalman Filter (UKF)
112 Four Non-Linear Filters Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF
113 Four Non-Linear Filters Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
114 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
115 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
116 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
117 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
118 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
119 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
120 Four Non-Linear Filters Process Model Observation Model Extended Kalman Filter Unscented Kalman Filter (UKF) Monte-Carlo UKF Particle Filter
121 Loss Function
122 Loss Function Ground Truth State Sequence
123 Loss Function Ground Truth State Sequence Sequence of State Estimates (Mean and Covariance)
124 Loss Function Ground Truth State Sequence Sequence of State Estimates (Mean and Covariance) Network Weights
125 Loss Function Negative log-likelihood of true state given believe Ground Truth State Sequence Sequence of State Estimates (Mean and Covariance) Network Weights
126 Loss Function Negative log-likelihood of true state given believe Estimation Error Ground Truth State Sequence Sequence of State Estimates (Mean and Covariance) Network Weights
127 Loss Function Negative log-likelihood of true state given believe Estimation Error Regularization Ground Truth State Sequence Sequence of State Estimates (Mean and Covariance) Network Weights
128 Two Application Kitti Visual Odometry Task Planar Pushing Task
129 Visual Odometry Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
130 Visual Odometry Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
131 Visual Odometry Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
132 Visual Odometry Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
133 Visual Odometry Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
134 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
135 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
136 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
137 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
138 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
139 Planar Pushing Badly-Tuned Noise Well-Tuned Noise Learned Constant Observation Noise Learned Hsc. Process Noise Learned Constant Noises Mixed
140 Take Home
141 Take Home Differentiable EKF most accurate and robust to inaccurate noise models
142 Take Home Differentiable EKF most accurate and robust to inaccurate noise models Particle filter gains most from heteroscedastic noise model.
143 Take Home Differentiable EKF most accurate and robust to inaccurate noise models Particle filter gains most from heteroscedastic noise model. UKF works best for more complex dynamics models.
144 Take Home Differentiable EKF most accurate and robust to inaccurate noise models Particle filter gains most from heteroscedastic noise model. UKF works best for more complex dynamics models.
145 Take Home Differentiable EKF most accurate and robust to inaccurate noise models Particle filter gains most from heteroscedastic noise model. UKF works best for more complex dynamics models. Uncertainty bounds for long-term predictions.
146 Conclusions
147 Conclusions Environment Complexity
148 Conclusions Success of Feedback Control Environment Complexity
149 Conclusions Success of Feedback Control Environment Complexity
150 Conclusions Success of Feedback Control Motion Planning Environment Complexity
151 Conclusions Success of Feedback Control Reactive Motion Planning Environment Complexity
152 Conclusions Success of Feedback Control Reactive Motion Planning Better Predictive Models Better Feedback O P Environment Complexity
153 Thank you for your Attention! Stanford MPI, USC iprl.stanford.edu
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