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检索条件"任意字段=Conference on Intelligent Robots and Computer Vision XXXII - Algorithms and Techniques"

共 372 条记录，以下是121-130 订阅

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Fuzzy logic control of an AGV

Fuzzy logic control of an AGV

引用

conference on intelligent robots and computer vision XVI - algorithms, techniques, Active vision, and Materials Handling

作者： Kelkar, N Samu, T Hall, EL Univ. of Cincinnati (United States)

ISBN: (纸本)0819426407

Automated Guided Vehicles (AGV's) have many potential applications in manufacturing, medicine, space and defense. The purpose of this paper is to describe exploratory research an the design of a modular autonomous mobile robot controller. The controller incorporates a fuzzy logic approach Ear steering and speed control, a neuro-fuzzy approach for ultrasound sensing (not discussed in this paper) and an overall expert system. The advantages of a modular system are related to portability and transportability, i.e. any vehicle can become autonomous with minimal modifications. A mobile robot test-bed has been constructed using a golf cart base. This cart has full speed control with guidance provided by a vision system and obstacle avoidance using ultrasonic sensors. The speed and steering fuzzy logic controller is supervised by a 486 computer through a multi-axis motion controller. The obstacle avoidance system is based on a micro-controller interfaced with six ultrasonic transducers. This micro-controller independently handles all timing and distance calculations and sends a steering angle correction back to the computer via the serial line. This design yields a portable independent system in which high speed computer communication is not necessary. vision guidance is accomplished with a CCD camera with a zoom lens. The data is collected by a vision tracking device that transmits. the X,Y coordinates of the lane marker to the control computer. Simulation and resting of these systems yielded promising results. This design, in its modularity, creates a portable autonomous fuzzy logic controller applicable to any mobile vehicle with only minor adaptations.

关键词： vision guidance ultrasonic sensing mobile robots intelligent machines three dimensional imaging fuzzy logic

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Remotely controlling of mobile robots using gesture captured by the Kinect and recognized by machine learning method

Remotely controlling of mobile robots using gesture captured...

引用

conference on intelligent robots and computer vision XXX - algorithms and techniques

作者： Hsu, Roy Chaoming Jian, Jhih-Wei Lin, Chih-Chuan Lai, Chien-Hung Liu, Cheng-Ting Dept Elect Engn 300 Syuefu Rd Chiayi 60004 Taiwan Dept Comp Sci Informat Engn Chiayi 60004 Taiwan

ISBN: (纸本)9780819494351

The main purpose of this paper is to use machine learning method and Kinect and its body sensation technology to design a simple, convenient, yet effective robot remote control system. In this study, a Kinect sensor is used to capture the human body skeleton with depth information, and a gesture training and identification method is designed using the back propagation neural network to remotely command a mobile robot for certain actions via the Bluetooth. The experimental results show that the designed mobile robots remote control system can achieve, on an average, more than 96% of accurate identification of 7 types of gestures and can effectively control a real e-puck robot for the designed commands.

关键词： Robot remote control Kinect sensor gesture recognition back propagation neural network

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The 21TH Annual intelligent Ground Vehicle Competition: Robotists for the Future

The 21TH Annual Intelligent Ground Vehicle Competition: Robo...

引用

conference on intelligent robots and computer vision XXXI - algorithms and techniques

作者： Theisen, Bernard L. US Army TARDEC Warren MI 48397 USA

ISBN: (纸本)9780819499424

The intelligent Ground Vehicle Competition (IGVC) is one of four, unmanned systems, student competitions that were founded by the Association for Unmanned Vehicle Systems International (AUVSI). The IGVC is a multidisciplinary exercise in product realization that challenges college engineering student teams to integrate advanced control theory, machine vision, vehicular electronics and mobile platform fundamentals to design and build an unmanned system. Teams from around the world focus on developing a suite of dual-use technologies to equip ground vehicles of the future with intelligent driving capabilities. Over the past 21 years, the competition has challenged undergraduate, graduate and Ph.D. students with real world applications in intelligent transportation systems, the military and manufacturing automation. To date, teams from over 80 universities and colleges have participated. This paper describes some of the applications of the technologies required by this competition and discusses the educational benefits. The primary goal of the IGVC is to advance engineering education in intelligent vehicles and related technologies. The employment and professional networking opportunities created for students and industrial sponsors through a series of technical events over the four-day competition are highlighted. Finally, an assessment of the competition based on participation is presented.

关键词： intelligent robots autonomous systems ground vehicles vehicle control engineering education IGVC.

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The Design and Results of an Algorithm for intelligent Ground Vehicles

The Design and Results of an Algorithm for Intelligent Groun...

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27th conference on intelligent robots and computer vision: algorithms and techniques

作者： Duncan, Matthew Milam, Justin Tote, Caleb Riggins, Robert N. Bluefield State Coll Bluefield WV USA

ISBN: (纸本)9780819479327

This paper addresses the design, design method, test platform, and test results of an algorithm used in autonomous navigation for intelligent vehicles. The Bluefield State College (BSC) team created this algorithm for its 2009 intelligent Ground Vehicle Competition (IGVC) robot called Anassa V. The BSC robotics team is comprised of undergraduate computer science, engineering technology, marketing students, and one robotics faculty advisor. The team has participated in IGVC since the year 2000. A major part of the design process that the BSC team uses each year for IGVC is a fully documented "Post-IGVC Analysis." Over the nine years since 2000, the lessons the students learned from these analyses have resulted in an ever-improving, highly successful autonomous algorithm. The algorithm employed in Anassa V is a culmination of past successes and new ideas, resulting in Anassa V earning several excellent IGVC 2009 performance awards, including third place overall. The paper will discuss all aspects of the design of this autonomous robotic system, beginning with the design process and ending with test results for both simulation and real environments.

关键词： Robot intelligent Ground Vehicle Sensor Integration vision System Mapping IGVC Path Planning

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IMAGE-CODING AND IMAGE ACTIVITY MEASUREMENT 12

IMAGE-CODING AND IMAGE ACTIVITY MEASUREMENT

引用

12th conference on intelligent robots and computer vision: algorithms and techniques

作者： KEISSARIAN, F IBRAHIM, MK DAEMI, MF UNIV NOTTINGHAM DEPT COMP SCIRECOGNIT ENGN GRPNOTTINGHAM NG7 2RDENGLAND

ISBN: (纸本)0819413208

In this paper, a novel image analysis technique is proposed, which may be performed prior to coding in order to decide what is the most significant information to encode. In the proposed system, the image to be coded is first partitioned into a large number of sub-blocks of N*N pixels. The blocks can then be stored into two major classes according to the level of the visual activity present. The classification is based on analyzing the local histogram within each sub-block. In this paper, we initially analyze the image blocks to separate uniform blocks from those that can be classified as non-uniform blocks. Adjacent uniform blocks with the same statistics are merged to form large blocks. These blocks can then be coded by their mean values. It is also shown that the non-uniform blocks may also be classified into three categories with different levels of activity.

关键词： Image compression Image quality Image analysis computer vision technology Machine vision Robot vision robots Image processing Statistical analysis Image transmission

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intelligent robots and computer vision IX: algorithms and techniques

Intelligent Robots and Computer Vision IX: Algorithms and Te...

引用

intelligent robots and computer vision IX: algorithms and techniques

This conference Proceedings contains 58 papers presented in 8 sessions dealing with: vision and robotics problems needing solutions;pattern recognition for computer vision;image processing;intelligent materials handling and vision;novel preprocessing algorithms and hardware;technology to support intelligent robots and automated systems;fuzzy logic in intelligent systems and computer vision;image segmentation techniques. The topics considered include the following, among others: learning procedure for the recognition of 3-D objects from 2-D images;flexible gray-level vision system based on multiple cell feature description and Hough transform;extraction of the foveal center and lesion boundary from fundus images;design and characterization of a space-variant CCD sensor;toward a general formula for analogical learning leading to more autonomous systems;image analysis using attributed fuzzy tournament matching algorithm;fuzzy logic for fault diagnosis;color segmentation using minimum description length (MDL) clustering;segmentation using range data and structured light;finding distinctive colored regions in images;multiresolution segmentation of forward-looking IP and SAR imagery using neural networks.

关键词： robots

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computer vision system for an autonomous mobile robot

Computer vision system for an autonomous mobile robot

引用

conference on intelligent robots and computer vision XIX: algorithms, techniques, and Active vision

作者： Liao, XQ Cao, J Cao, M Samu, T Hall, E Univ Cincinnati Ctr Robot Res Cincinnati OH 45221 USA

ISBN: (纸本)0819438626

The purpose of this paper is to compare three methods for three-dimensional measurements of line position used for the vision guidance to navigate an autonomous mobile robot. A model is first developed to map three dimensional ground points into image points to be developed using homogeneous coordinates. Then using the ground plane constraint, the inverse transformation that maps image points into three dimensional ground points is determined. And then the system identification problem is solved using a calibration device. Calibration data is used to determine the model parameters by minimizing the mean square error between model and calibration points. A novel simplification is then presented which provides surprisingly accurate results. This method is called the magic matrix approach and uses only the calibration data. A more standard variation of this approach is also considered. The significance of this work is that it shows that three methods that are based on three-dimensional measurements may be used for mobile robot navigation and that a simple method can achieve accuracy to a fraction of an inch which is sufficient in some applications.

关键词： autonomous mobile robot calibration navigation magic matrix

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Motion control design of the BEARCAT II mobile robot

Motion control design of the BEARCAT II mobile robot

引用

conference on intelligent robots and computer vision XVIII - algorithms, techniques, and Active vision

作者： Cao, M Liao, XQ Hall, E Univ Cincinnati Ctr Robot Res Cincinnati OH 45221 USA

ISBN: (纸本)0819434302

Motion control is one of the most critical factors in the design of a robot. The purpose of this paper is to describe the research for applying motion control principles for a mobile robot systems design, which is on going at the University of Cincinnati Robotics Center. The mobile robot was constructed during the 1998-1999 academic year, and called BEARCAT II. Its design has inherited many features of its predecessor, BEARCAT I, such as vision guidance, sonar detection and digital control. In addition, BEARCAT II achieved many innovative motion control features as rotating sonar, zero turning radius (ZTR), current control loop, and multi-level controller design (conventional control and fuzzy logic control). This paper will focus on the motion control design, development and programming for the vehicle steering control and rotating sonar systems. The systems have been constructed and tested at the 1999 International Ground Robotics Competition with the Bearcat II running an obstacle course for 153.5 feet and finishing fourth in the competition. The significance of this work is in the increased understanding of robot control and the potential application of autonomous guided vehicle technology for industry, defense and medicine. Keywords: Motion control, motion behavior, compensation, mobile robots.

关键词： Control systems Motion controllers Amplifiers computer programming Mobile robots Robotics Safety Vehicle control Control systems design Fuzzy logic

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WAVELET TRANSFORM IN-DEPTH RECOVERY 12

WAVELET TRANSFORM IN-DEPTH RECOVERY

引用

12th conference on intelligent robots and computer vision: algorithms and techniques

作者： HOR, MK CHEN, JYM CHEN, KS ACAD SINICA INST INFORMAT SCITAIPEI 115TAIWAN

ISBN: (纸本)0819413208

In this paper, a number of spatial/spatial-frequency image representations are reviewed. Wavelets have recently generated much interest, both in applied areas as well as in more theoretical ones. Wavelet transform relative to some basic wavelets provides a flexible time- frequency window which automatically narrows when observing high frequency phenomena and widens when studying low frequency environments. As a result, it is suitable for visual information representation. Applications in computer vision such as image compression and image enhancement are examined. method is presented, in which, a N X N subimage is divided into a lot of N X 7 or N X 9 narrow image regions perpendicular to local fringe direction, and then each region is segmented by a corresponding threshold curve. Because the threshold curves can follow fringe's extremum changes, it can avoid the effect of the inhomogeneous grey level distribution caused by diffraction halo and accurate segmen space, a projection operator is used in the spatial-variant deconvolution. Nevertheless, experimental results show that this approximation mechanism can generate the depth map of different images successfully.

关键词： Wavelets Wavelet transforms Cameras computer vision technology Machine vision Image processing Robot vision robots Deconvolution Space operations

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3D vision system for intelligent milking robot automation

3D vision system for intelligent milking robot automation

引用

conference on intelligent robots and computer vision XXXI - algorithms and techniques

作者： Akhloufi, M. A. Ctr Robot & Vis Ind Levis PQ G6V 6Z9 Canada

ISBN: (纸本)9780819499424

In a milking robot, the correct localization and positioning of milking teat cups is of very high importance. The milking robots technology has not changed since a decade and is based primarily on laser profiles for teats approximate positions estimation. This technology has reached its limit and does not allow optimal positioning of the milking cups. Also, in the presence of occlusions, the milking robot fails to milk the cow. These problems, have economic consequences for producers and animal health (e.g. development of mastitis). To overcome the limitations of current robots, we have developed a new system based on 3D vision, capable of efficiently positioning the milking cups. A prototype of an intelligent robot system based on 3D vision for real- time positioning of a milking robot has been built and tested under various conditions on a synthetic udder model (in static and moving scenarios). Experimental tests, were performed using 3D Time-Of-Flight (TOF) and RGBD cameras. The proposed algorithms permit the online segmentation of teats by combing 2D and 3D visual information. The obtained results permit the teat 3D position computation. This information is then sent to the milking robot for teat cups positioning. The vision system has a real-time performance and monitors the optimal positioning of the cups even in the presence of motion. The obtained results, with both TOF and RGBD cameras, show the good performance of the proposed system. The best performance was obtained with RGBD cameras. This latter technology will be used in future real life experimental tests.

关键词： 3D vision multimodal fusion intelligent systems RGBD TOF real-time robotics milking robot.

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