Results 161 to 170 of about 2,469,619 (202)

Hybrid architecture for understanding motion sequences

Neurocomputing, 1993
Abstract The aim of the research introduced in this paper is the development of a hybrid vision system architecture based on a unified neural network platform and a query-based database that shares their noise-tolerant, learning and interactive properties.
Alexandra Psarrou, Hilary Buxton
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HSfM: Hybrid Structure-from-Motion

2017 IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 2017
Structure-from-Motion (SfM) methods can be broadly categorized as incremental or global according to their ways to estimate initial camera poses. While incremental system has advanced in robustness and accuracy, the efficiency remains its key challenge.
Hainan Cui, Xiang Gao 0009, Shuhan Shen, Zhanyi Hu   +3 more
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A Voronoi-based hybrid motion planner

Proceedings 2001 IEEE/RSJ International Conference on Intelligent Robots and Systems. Expanding the Societal Role of Robotics in the the Next Millennium (Cat. No.01CH37180), 2002
We present a hybrid path planning algorithm for rigid and articulated bodies translating and rotating in a 3D workspace. Our approach generates a Voronoi roadmap in the workspace and combines it with "bridges" computed by a randomized path planner with Voronoi-biased sampling.
Mark Foskey, Maxim Garber, Ming C. Lin, Dinesh Manocha   +3 more
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A hybrid approach for complete motion planning

2007 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2007
We present an efficient algorithm for complete motion planning that combines approximate cell decomposition (ACD) with probabilistic roadmaps (PRM). Our approach uses ACD to subdivide the configuration space into cells and computes localized roadmaps by generating samples within these cells.
Liangjun Zhang, Young J. Kim, Dinesh Manocha   +2 more
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Segmentation of hybrid motions via hybrid quadratic surface analysis

Tenth IEEE International Conference on Computer Vision (ICCV'05) Volume 1, 2005
In this paper, we investigate the mathematical problem underlying segmentation of hybrid motions: given a series of tracked feature correspondences between two (perspective) images, we seek to segment and estimate multiple motions, possibly of different types (e.g., affine, epipolar, and homography).
Shankar R. Rao, Allen Y. Yang, Andrew Wagner, Yi Ma 0001   +3 more
openaire   +1 more source

A hybrid motion cueing algorithm

Control Engineering Practice, 2020
Abstract Current closed-loop, optimization-based motion cueing algorithms (MCAs) use a driver model to predict a future driving dynamics reference. These models are often inaccurate and/or computationally expensive because future driving behaviour is unknown. In some cases, the vehicle’s trajectory is known in advance.
Felix Ellensohn, Maximilian Spannagl, Samir Agabekov, Joost Venrooij, Markus Schwienbacher, Daniel Rixen   +5 more
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Lifting motion simulation using a hybrid approach

Ergonomics, 2015
In this study, a hybrid dynamic model for lifting motion simulation is presented. The human body is represented by a two-dimensional (2D) five-segment model. The lifting motions are predicted by solving a nonlinear optimisation problem, the objective function of which is defined based on a minimal-effort performance criterion.
Xingda Qu, Chun-Hsien Chen
exaly   +3 more sources

Thermocapillary motion of hybrid drops

Physics of Fluids, 2008
Hybrid drops are composed of two or more immiscible phases. They occur in various natural and technological processes and environments, e.g., the atmosphere, liquid membranes, and liquid bilayers and direct-contact heat and phase separation processes. In this work we have studied the dynamics of an axisymmetric hybrid drop in an infinite viscous domain.
Rosenfeld, L., Lavrenteva, O. M., Nir, A.   +2 more
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Hybrid Hierarchical Motion Planning

AIAA Guidance, Navigation and Control Conference and Exhibit, 2008
In this paper, the problem of motion planning of an autonomous agent in an uncertain environment is solved in a hierarchical fashion. At the higher level of the hierarchy, the state-space of the agent is reduced to a set of “landmarks” through the use of suitably defined control policies at the lower level, called “options”, which results in a semi ...
Suman Chakravorty, Roshmik Saha
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Hybrid control: A constrained motion perspective

Journal of Robotic Systems, 1991
AbstractControl of manipulators during execution of tasks that require the end‐effector to come into contact with objects in its work environment represents an important class of control problem. Hybrid control, a concept which defines the architecture of a class of control laws has been proposed as a method with which to solve this control problem ...
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