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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The proceedings contain 28 papers. The topics discussed include: building digital economy - the research councils programme and the vision;why the internet is so 'small'?;reactive management of quality of serv...
ISBN:
(纸本)3642112838
The proceedings contain 28 papers. The topics discussed include: building digital economy - the research councils programme and the vision;why the internet is so 'small'?;reactive management of quality of service in multimedia OBS networks based on GMPLS;enhancing Java RMI with asynchrony through reflection;SNR based digital estimation of security in wireless sensor networks;quantifying the TV white spaces spectrum opportunity for cognitive radio access;MIMO free-space optical communication employing subcarrier intensity modulation in atmospheric turbulence channels;RSVP-TE based impairments collection mechanism in DWDM network;MIMO-OFDM system's performance using LDPC codes for a mobile robot;hybrid M-QAM with adaptive modulation and selection combining in MIMO systems;and performance analysis of a joint space-time block codes and channel estimation scheme in DL-PUSC mode of mobile WiMAX.
In this paper, two global measures of image similarity are compared for use in topological localization of mobile robots. A catadioptric vision system was used as the sensor. Our localization system employs a discrete...
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ISBN:
(纸本)9781424416424
In this paper, two global measures of image similarity are compared for use in topological localization of mobile robots. A catadioptric vision system was used as the sensor. Our localization system employs a discrete Bayes filter. Experimental results with real images of an office environment indicate the robot can localize itself from the memorized training images even with the modification of the environment.
This paper presents a real-time multi-view stereo algorithm, which is based on local winner-take-all optimization. When computing the disparity maps for a given view, the algorithm performs 3 steps: cost volume genera...
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ISBN:
(纸本)9780769531533
This paper presents a real-time multi-view stereo algorithm, which is based on local winner-take-all optimization. When computing the disparity maps for a given view, the algorithm performs 3 steps: cost volume generation, cost volume merging, and disparity selection. The main focus of this paper is on the second step and a new cost volume merging method is proposed, which combines the adaptive weight and the Parzen window approaches. The proposed method can deal with noise and visibility problems effectively, even with poorly generated cost volumes as input. The experimental results demonstrate the validity of our presented approach.
Recent advancements in laser and visible light sensor technology allows for the collection of photorealistic 3D scans of large scale spaces. This enables the technology to be used in real world applications such as cr...
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ISBN:
(纸本)9780769531533
Recent advancements in laser and visible light sensor technology allows for the collection of photorealistic 3D scans of large scale spaces. This enables the technology to be used in real world applications such as crime scene investigation. The 3D models of the environment obtained with a 3D scanner capture visible surfaces but do not provide semantic information about salient features within the captured scene. Later processing must convert these raw scans into salient scene structure. This paper describes ongoing research into the generation of semantic data from the 3D scan of a crime scene to aid forensic specialists in crime scene investigation and analysis.
computervision based autonomous navigation scheme for pin-point landing of robotic spacecraft on asteroids is considered. Due to the long communication delay and complicated dynamic environment close to asteroids, tr...
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ISBN:
(纸本)9783540885160
computervision based autonomous navigation scheme for pin-point landing of robotic spacecraft on asteroids is considered. Due to the long communication delay and complicated dynamic environment close to asteroids, traditional spacecraft navigation and control using the deep space network (DSN) is not suitable for the precise and safe landing of robotic spacecraft on asteroids. It is necessary to develop new generation autonomous navigation algorithms for future asteroid landing missions. To meet this requirement, this paper presents computervision based autonomous relative navigation (VARN) algorithm. Firstly, architecture and function of VARN is introduced;secondly, feature detection and tracking algorithm is given out;then, VARN basing on Levenberg-Marquardt (LM) iteration is defined in detail. Finally, the validity of the proposed navigation scheme is confirmed by computer simulation.
Pivotal techniques of cotton-harvestrobots were summarized, including image segmentation, features generation, artificial classifiers and performances evaluation. Solutions based on machine vision and pattern recogni...
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ISBN:
(纸本)9780387772523
Pivotal techniques of cotton-harvestrobots were summarized, including image segmentation, features generation, artificial classifiers and performances evaluation. Solutions based on machine vision and pattern recognition were analyzed to distinguish ripe from under-ripe/over-ripe cottons, and rank cottons according to government grading standards.
vision navigation and location is a main function in the vision system of intelligent agricultural mobile robot, and the edge feature of images is an important feature for vision navigation and location. According to ...
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ISBN:
(纸本)9780387772523
vision navigation and location is a main function in the vision system of intelligent agricultural mobile robot, and the edge feature of images is an important feature for vision navigation and location. According to the characteristic of cropland scenery, a compactly supported dyadic antisymmetric wavelet with respect to origin is brought forward to detect edges of cropland image. A set of filters were given that can be used to construct the edge detecting wavelet. The edge features are provided by determining the local maxim of wavelet coefficient at dyadic scale of the image. After the computer simulation was carried out on the cropland image, the continuous and smooth edge image can be got. The edges of cropland scenery are extracted accurately. The experiment result reveals that the method is efficient and practicable.
The MEMS (Microelectromechanical Systems) technology is a new interesting research direction which aims to manufacture and assembly of micro-systems. The research of micro assembly robot has. significances of academy ...
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ISBN:
(纸本)9783540885160
The MEMS (Microelectromechanical Systems) technology is a new interesting research direction which aims to manufacture and assembly of micro-systems. The research of micro assembly robot has. significances of academy and commerce. In the paper the theory and related key technologies of micro-assembly robot based on computer microscope vision feedback were investigated To enlarge the manipulation area. a novel method of microscope focusing automatically was studied. The focusing process was carried out in cursory step and accurate one. The coarse focusing was based oil the image My histogram while the accurate one compared the width of image edges. Theory analysis and experiments showed that this algorithm enlarged the microscope focusing depth, with the advantages of simplicity and good real time performance.
The proceedings contain 113 papers. The topics discussed include: brain computer interface - comparison of neural networks classifiers;autoregressive features for a thought-to-speech converter;treatment of mitral valv...
ISBN:
(纸本)9789898111173
The proceedings contain 113 papers. The topics discussed include: brain computer interface - comparison of neural networks classifiers;autoregressive features for a thought-to-speech converter;treatment of mitral valve insufficiency by shape memory polymer based active annuloplasty;biomaterial for soft tissue replacements;preclinical testing of a new venous valve;multiparameter single locus integrated multilayer polymer microsensor system;novel controller for rebreather diving systems - true sensor signal validation and safe oxygen injection;probabilistic workpsace scan modes of a robot manipulator commanded by EEG signals;ICT and persons with disabilities - the solution or the problem?;multivariate, multiorgan and multiscale integration of information in biomedical signal processing;outthinking and enhancing biological brains;omnidirectional vision tacking system based on Kalman filtering and omnicamshift;and a reconfigurable system for movement rehabilitation and diagnostics with FES.
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