The extension of H.264/AVC hybrid video coding towards scalable video coding (SVC) using motion-compensated temporal filtering (MCTF) is presented. Utilizing the lifting approach to implement MCTF, the motion compensation features of H.264/AVC can be re-used for the MCTF prediction step and extended in a straightforward way for the MCTF update step. The MCTF extension of H.264/AVC is also incor...

Motion and velocity are essential parameters for an Unmanned Aerial Vehicle (UAV) during critical maneuvers such as landing or take-off. In this paper, we present a hybrid stereoscopic rig made of a fisheye and a perspective cameras for motion estimation. The rotation and translation are estimated by a decoupling. The fisheye view contributes to determine the orientation and the attitude while ...

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. The Voronoi roadmap is computed from a discrete approximation to the generalized Voronoi diagram (GVD) of the workspace...

The focus of studies in the field of passive walking has often been on straight walking, while less attention has been paid to the field of turning motions. In this paper, the passive motions of a finite width rimless wheel as the simplest 3D model of passive biped walkers was investigated with a focus on turning motions. For this purpose, the hybrid model of the system consisting of continuous...

<p>The Whale Optimization Algorithm (WOA) has the characteristics of simple implementation and few adjustment parameters, which is remarkable in optimization algorithm. However, there are shortcomings such as premature convergence, slow convergence later period, low search accuracy. For these shortcomings, a novel Brownian motion-based hybrid whale algorithm (HWOA) proposed. The strategy ...

In this article, we discuss the usage of action cameras in research. First, elaborate on idea camera providing a first-person perspective, possibly giving access to research participant’s subjectivity, and critically. Our discussion these issues is based data that was produced two different settings where were distributed groups students; one setting an outdoor museum other classroom. Second, e...

Discrete transitions, or instantaneous switchings between system configurations, constitute the defining attribute of a hybrid, or switching, system behavior. These transitions have been traditionally viewed as nondynamic. In recent years, however, a realization has started to form that such a simplification does not unambiguously support some basic phenomena exhibited by hybrid systems, such a...