作者：
Abu-Nimeh, Faisal T.Salem, Fathi M.Circuits
Systems and Neural Networks Lab Dept. of Electrical and Computer Engineering Michigan State University East Lansing United States
Electromagnetic arrays can be precisely constructed on silicon CMOS technology as a platform for collective non-contact sensing and manipulation of magnetic or magnetized particles of micron to nano scale. Such platfo...
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This paper is concerned with stereo imaging for three-dimensional range estimation. The usual assumption for a two-camera system is that both cameras are stationary with respect to one another. In some imaging environ...
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ISBN:
(纸本)9781617389160
This paper is concerned with stereo imaging for three-dimensional range estimation. The usual assumption for a two-camera system is that both cameras are stationary with respect to one another. In some imaging environments, however, physical vibrations are unavoidable. If these vibrations induce small movements of the cameras relative to each other, then the accuracy of any range estimates based on binocular disparity will suffer. These problems are especially pronounced for mobile, large-baseline systems such as aerial vehicles. This paper describes an approach for reducing loss of accuracy by modeling vibrational camera motion using external sensors such as accelerometers, and then triggering image acquisition to coincide with known orientations of the cameras. Experiments using two different camera platforms are presented. The first is a simple beam that is center-mounted to a shaker to induce symmetric bending. For the second set of experiments, cameras were mounted near the wingtips of an unmanned aerial vehicle (UAV). In both cases, ranging accuracy was significantly improved when vibrational movements were incorporated into the system.
Random wandering is among the most frequently implemented mobile robotic behaviours. This paper presents a bio-inspired controller for mobile robots that generates deterministic wandering behaviour. Some results from ...
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Random wandering is among the most frequently implemented mobile robotic behaviours. This paper presents a bio-inspired controller for mobile robots that generates deterministic wandering behaviour. Some results from the controller are derived theoretically and tested through simulations for symmetric cases, when analytic solutions are available. A technique to deal with non closed form wandering trajectories is also presented in a simple case study application.
Currently RFID authentication systems rely only on matching tag ID with the one kept in database. Additionally, an alphanumerical password might be matched as extra security. However, tag ID and information inside can...
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ISBN:
(纸本)9781450302340
Currently RFID authentication systems rely only on matching tag ID with the one kept in database. Additionally, an alphanumerical password might be matched as extra security. However, tag ID and information inside can be compromised. Therefore, a more secure scheme is required in order to enhance safety of access control through RFID tags in particularly highly secure environments such as secure virtual meetings or authentication and access control to access high security locals. We wish to present attendance control system which is more like access control in general as an application of our novel security enhancement on RFID based access control systems. The security enhancement utilizes partial ParseKey+ multi-way authentication scheme. ParseKey+ scatters randomly divided sub-keys into uniformly distributed noise. Generated file is encrypted using AES256 and then it is written into RFID device. Each successful login changes the key and its trace kept in DB in addition to updating the device for future login. Copyright 2010 ACM.
Informally, a parallel Turing machine (PTM) proposed by Wiedermann is a set of identical usual sequential Turing machines (STM's) cooperating on two common tapes - storage tape and input tape. Moreover, STM's ...
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In this paper we deal with the problem of decentralized stabilization for linear and time-invariant plants in feedback control configurations that are subject to sparsity constraints. Recent theoretical advances in de...
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A parallel Turing machine (PTM) proposed by Wiedermann is a set of identical usual sequential Turing machines (STM's) cooperating on two common tapes - storage tape and input tape. On the other hand, due to the ad...
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In cognitive psychology, confirmation bias is defined as the tendency of people to verify hypotheses rather than refuting them. During unit testing software developers should aim to fail their code. However, due to co...
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This paper describes the control of an autonomous biped robot that combines the use of the torso and the ankle joints movements for its sagittal balance. The innovative characteristic of this controller is the combine...
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In this paper, we present a method to navigate a mobile robot using a webcam. This method determines the shortest path for the robot to transverse to its target location, while avoiding obstacles along the way. The en...
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ISBN:
(纸本)9789604741717
In this paper, we present a method to navigate a mobile robot using a webcam. This method determines the shortest path for the robot to transverse to its target location, while avoiding obstacles along the way. The environment is first captured as an image using a webcam. Image processing methods are then performed to identify the existence of obstacles within the environment. Using the Voronoi Diagrams VD(s) method, locations with obstacles are identified and the corresponding Voronoi cells are eliminated. From the remaining Voronoi cells, the shortest path to the goal is identified. The program is written in MATLAB with the Image Processing toolbox. The proposed method does not make use of any other type of sensor other than the webcam.
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