Robot programming by demonstration (RPD): supporting the induction by human interaction
Machine Learning - Special issue on robot learning
A survey of computer vision-based human motion capture
Computer Vision and Image Understanding - Modeling people toward vision-based underatanding of a person's shape, appearance, and movement
View-Invariant Representation and Recognition of Actions
International Journal of Computer Vision
On Using Functions to Describe the Shape
Journal of Mathematical Imaging and Vision
ECCV '98 Proceedings of the 5th European Conference on Computer Vision-Volume I - Volume I
Tracking non-rigid, moving objects based on color cluster flow
CVPR '97 Proceedings of the 1997 Conference on Computer Vision and Pattern Recognition (CVPR '97)
Motion synthesis from annotations
ACM SIGGRAPH 2003 Papers
IEEE Transactions on Pattern Analysis and Machine Intelligence
Human Motion: Modeling and Recognition of Actions and Interactions
3DPVT '04 Proceedings of the 3D Data Processing, Visualization, and Transmission, 2nd International Symposium
Recognizing Hand Gesture using Fourier Descriptors
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 3 - Volume 03
Activity Recognition Based on Multiple Motion Trajectories
ICPR '04 Proceedings of the Pattern Recognition, 17th International Conference on (ICPR'04) Volume 4 - Volume 04
Extraction and Temporal Segmentation of Multiple Motion Trajectories in Human Motion
CVPRW '04 Proceedings of the 2004 Conference on Computer Vision and Pattern Recognition Workshop (CVPRW'04) Volume 7 - Volume 07
View Invariance for Human Action Recognition
International Journal of Computer Vision
A new shape descriptor defined on the radon transform
Computer Vision and Image Understanding
Recognizing Assembly Tasks Through Human Demonstration
International Journal of Robotics Research
Optimized polygonal approximation by dominant point deletion
Pattern Recognition
Combining minutiae descriptors for fingerprint matching
Pattern Recognition
Articulated motion reconstruction from feature points
Pattern Recognition
Vision-based human motion analysis: An overview
Computer Vision and Image Understanding
Trajectory Optimization using Reinforcement Learning for Map Exploration
International Journal of Robotics Research
Robust symbolic representation for shape recognition and retrieval
Pattern Recognition
Shape matching and modeling using skeletal context
Pattern Recognition
Activity based surveillance video content modelling
Pattern Recognition
On Signature Invariants for Effective Motion Trajectory Recognition
International Journal of Robotics Research
Two-Character Motion Analysis and Synthesis
IEEE Transactions on Visualization and Computer Graphics
Fuzzy-GA-based trajectory planner for robot manipulators sharing a common workspace
IEEE Transactions on Robotics
On Learning, Representing, and Generalizing a Task in a Humanoid Robot
IEEE Transactions on Systems, Man, and Cybernetics, Part B: Cybernetics
Skill modeling through symbolic reconstruction of operator's trajectories
IEEE Transactions on Systems, Man, and Cybernetics, Part A: Systems and Humans
Wavelet descriptor of planar curves: theory and applications
IEEE Transactions on Image Processing
Invariant matching and identification of curves using B-splines curve representation
IEEE Transactions on Image Processing
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Free form motion trajectories prove to be an informative and compact motion clue in sketching long-term, spatiotemporal motions. Hence, motion trajectories have been used for characterizing human behaviors/activities, robot actions and other objects' movements. However, it is observed that most of the previous studies merely use motion trajectories straightforwardly in the raw data form, which is inflexible as they rely largely on the absolute positions. To solve this problem, we propose to achieve effective motion trajectory descriptions by developing a systematic trajectory description mechanism. To this end, a flexible motion trajectory signature descriptor has been proposed in our previous work, which can offer generalized descriptions to the raw trajectory data thanks to its rich description invariants. Moreover, for an effective descriptor, it is sometimes desired to have mutual description functions, i.e. describing and un-describing capability to support some applications like robot learning. Hence, opposite to describing a motion trajectory using the signature, this paper focuses on the un-describing problem, that is, reproducing a trajectory instance from a given signature description. The moving frame technique is used in formulating the trajectory reproduction method. A nonlinear signature matching-based metric is also developed to measure the quality of the reproductions. Experiments are conducted to verify the effectiveness of the trajectory reproduction. It is shown that the trajectory signature is flexible and easy to implement in both the description and reproduction of trajectory instances.