planning robot trajectory is a complex task that plays a significant role in design and application of robots in task space. the problem is formulated as a trajectory optimization problem which is fundamentally a constrained nonlinear optimization problem. open-loop optimal control method is proposed as an approach for trajectory optimization of cable parallel manipulator for a given two-end-po...

Planning robot trajectory is a complex task that plays a significant role in design and application of robots in task space. The problem is formulated as a trajectory optimization problem which is fundamentally a constrained nonlinear optimization problem. Open-loop optimal control method is proposed as an approach for trajectory optimization of cable parallel manipulator for a given two-end-po...

A series of experiments investigated the extent to which the spatial orientation of a signal line affects discrimination of its trajectory from the random trajectories of background noise lines. The orientation of the signal line was either parallel (iso-) or orthogonal (ortho-) to its motion direction and it was identical in all respects to the noise (orientation, length and speed) except for ...

Multibody motion segmentation is important in many computer vision tasks. This paper presents a novel spectral clustering approach to motion segmentation based on motion trajectory. We introduce a new affinity matrix based on the motion trajectory and map the feature points into a low dimensional subspace. The feature points are clustered in this subspace using a graph spectral approach. By com...

In this paper, we focus on the extraction problem of the target motion trajectory and make deep research. For Euclidean distance of SIFT feature matching algorithm is not adaptively adjustable, a improved SIFT feature matching algorithm based on multi-objective optimization is proposed. The optimization model is established to reduce mismatch rate, which consider Euclidean distance between corr...

Multiple multirotor Micro Aerial Vehicles (MAVs) sharing the same airspace require a reliable and robust collision avoidance technique. In this paper we address the problem of multi-MAV reactive collision avoidance. A model-based controller is employed to achieve simultaneously reference trajectory tracking and collision avoidance. Moreover, we also account for the uncertainty of the state esti...

A novel scheme for depth extraction is achieved using a multiple view ring camera system. The ring camera method captures a series of images of scene from a set of camera locations arranged in a circular ring. Tracking of scene features through this sequence realizes circular feature trajectories. The recovery of depth can be obtained with this method by determining the diameter of the circular...

In this paper, a design of modularized dual-joint servo controller on-chip for a space manipulator system is presented. All sensor information collection within the joints are obtained with FPGA hardware logic elements, and the joint space trajectory planning and position control are realized by Nios II soft-core processor, which is embedded in FPGA. Moreover, a dualredundant CAN bus Interface ...

in this paper, the range doppler algorithm (rda) for synthetic aperture radar moving on a ballistic trajectory is presented. the 3-dimension acceleration and non-uniform trajectory cause decreases in efficiency of conventional imaging algorithms. in this paper, the analytical expression for the 2-d signal spectrum for ballistic trajectory using taylor series expansion and series reversion is de...