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The objective of this paper is to develop a localization system for cooperative multiple mobile robots, in which each robot is assumed to observe a set of known landmarks and equipped with an omnidirectional camera. If only a limited number of landmarks are available, it suffers from law accuracy. In this paper, it is assumed that a robot can detect other robots by using the omnidirectional camera...
This paper discusses a perceptual system for intelligent robots. Robots should be able to perceive environments flexibly enough to realize intelligent behavior. We focus on a perceptual system based on the perceiving-acting cycle discussed in ecological psychology. The perceptual system we have proposed consists of a retinal model and a spiking-neural network realizing the perceiving-acting cycle...
3D pose determination and nonlinear image registration of traffic sign plays an important role in visual guidance of intelligent transportation system. The ellipse parameter matrix of the borderline of a circular traffic sign is firstly optimally estimated. Then, by means of its eigen decomposition, the 3D pose of traffic sign is computed and, in turn, the 3D coordinates of all points on the traffic...
This paper presents the tracking and estimation of indoor UAVs using multi-camera visual feedback. The proposed vision algorithm enhances the performance of the vision system by making up for a weakness of low cost camera such as poor resolution and large noise. For the pose estimation of multiple vehicles, data association algorithm using the geometric relation between cameras is employed in this...
We present a method to estimate the position and the orientation of a hand from a captured image for applications which need to manipulate instinctively and freely using a hand. We use a hand as a tool instead of an input device such as a mouse or a marker, and we use only a web camera instead of multiple-camera or an infrared camera, in order to improve mobility and usability. We focused on four...
We propose a distributed algorithm for estimating the poses (positions and orientations) of multiple autonomous vehicles in GPS denied scenarios when pairs of vehicles can measure each other's relative pose in their local coordinates. Currently, navigation of an autonomous vehicle in GPS denied scenarios is achieved by integrating relative pose measurements between successive time instants that are...
This paper introduces a non-temporal multiple silhouettes in Hidden Markov Model (HMM) for offering view independent human posture recognition. The multiple silhouettes are used to reduce the ambiguity problem of posture recognition. A simple feature extraction of the 2D shape contour based histogram is used for image encoding and K-Means algorithm is applied for clustering and code-wording of eight...
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