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3rd international conference on Multimodal Interfaces, ICMI 2000

作者： Sun, Wei Huang, Xin-Yuan Qi, Dong-Xu CAD Research Center North China University of Technology Beijing100041 China

ISBN: (纸本)3540411801

Nowadays, image-base modeling is one of hotspots in the study of computer graphics. Along with the requirement of putting the VR technology into real-life environment being enhanced, the immersion of the scene becomes more and more important. Allow for the complexity of the scenes, we have employed the approaches based on Digital image Transformation to obtain stereoscopic image. In this paper, the stereoscopic image generation algorithm based on the Stereo vision and Digital image Transformation is given. At same time, image and video processing examples are presented to discuss the algorithm’s feasibility and practicability. © Springer-Verlag Berlin Heidelberg 2000.

关键词： Stereo vision

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Human-robot interface based on speech understanding assisted by vision 3rd

Human-robot interface based on speech understanding assisted...

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3rd international conference on Multimodal Interfaces (ICMI 2000)

作者： Chong, SH Kuno, Y Shimada, N Shirai, Y Osaka Univ Dept Comp Controlled Mech Syst Osaka Japan Saitama Univ Dept Informat & Comp Sci Urawa Saitama Japan

ISBN: (纸本)3540411801

Speech recognition provides a natural and familiar interface for human beings to pass on information. For this, it is likely to be used as the human interface in service robots. However, in order for the robot to move in accordance to what the user tells it, there is a need to look at information other than those obtained from speech input. First, we look at the widely discussed problem in natural language processing of abbreviated communication of common context between parties. In addition to this, another problem exists for a robot, and that is the lack of information linking symbols in a robot's world to things in a real world. Here, we propose a method of using image processing to make up for the information lacking in language processing that makes it insufficient to carry out the action. And when image processing fails, the robot will ask the user directly and use his/her answer to help it in achieving its task. We confirm our theories by performing experiments on both simulation and real robot and test their reliability.

关键词： human-robot interface speech understanding vision-based interface service robot face recognition

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Stereoscopic vision for a humanoid robot using genetic programming

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EvoWorkshops 2000: 2nd European Workshop on Evolutionary Computation in image Analysis and Signal processing, EvoIASP 2000, 1st European Workshop on Evolutionary Computation in Systems, Control and Drives in Industry, Evo-SCONDI 2000, 2nd European Workshop on Evolutionary Telecommunications, EvoTel 2000, 1st European Workshop on Evolutionary Scheduling and Timetabling, EvoStim 2000, 3rd European Workshop on Evolutionary Robotics, EvoRob 2000 and 1st European Workshop on Evolutionary Aeronautics, EvoFlight 2000 held in conjunction with European conference on Genetic Programming, EuroGP 2000 and 3rd international conference on Evolvable Systems, ICES 2000

作者： Graae, Christopher T. M. Nordin, Peter Nordahl, Mats Complex Systems Group Institute of Physical Theory Chalmers University of Technology GöteborgS-412 96 Sweden

ISBN: (纸本)3540673539

In this paper we introduce a new approach to adaptive stereoscopic vision. We use genetic programming, where the input to the individuals is raw pixel data from stereo image-pairs acquired by two CCD cameras. The output from the individuals is the disparity map, which is transformed to a 3D map of the captured scene using triangulation. The used genetic engine evolves machine-coded individuals, and can thereby reach high Performance on weak computer architectures. The evolved individuals have an average disparity-error of 1.5 pixels, which is equivalent to an uncertainty of about 10% of the true distance. This work is motivated by applications to the control of autonomous humanoid robots - The Humanoid Project at Chalmers. © Springer-Verlag Berlin Heidelberg 2000.

关键词： Genetic programming

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EvoWorkshops 2000: 2nd European Workshop on Evolutionary Computation in image Analysis and Signal processing, EvoIASP 2000, 1st European Workshop on Evolutionary Computation in Systems, Control and Drives in Industry, Evo-SCONDI 2000, 2nd European Workshop on Evolutionary Telecommunications, EvoTel 2000, 1st European Workshop on Evolutionary Scheduling and Timetabling, EvoStim 2000, 3rd European Workshop on Evolutionary Robotics, EvoRob 2000 and 1st European Workshop on Evolutionary Aeronautics, EvoFlight 2000 held in conjunction with European conference on Genetic Programming, EuroGP 2000 and 3rd international conference on Evolvable Systems, ICES 2000

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ISBN: (纸本)3540673539

The proceedings contain 37 papers. The special focus in this conference is on EvoIASP Talks and EvoIASP Posters. The topics include: Special purpose image convolution with evolvable hardware;stereoscopic vision for a humanoid robot using genetic programming;a faster genetic clustering algorithm;scene interpretation using semantic nets and evolutionary computation;evolutionary wavelet bases in signal spaces;the ultra high tech approach;sound localization for a humanoid robot by means of genetic programming;on the scalability of genetic algorithms to very large-scale feature selection;combining evolutionary, connectionist, and fuzzy classification algorithms for shape analysis;experimental determination of drosophila embryonic coordinates by genetic algorithms, the simplex method, and their hybrid;a genetic algorithm with local search for solving job shop problems;distributed learning control of traffic signals;time series prediction by growing lateral delay neural networks;trajectory controller network and its design automation through evolutionary computing;evolutionary computation and nonlinear programming in multi-model-robust control design and benchmarking cost-assignment schemes for multi-objective evolutionary algorithms.

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Automating 3D echocardiographic image analysis 3rd

Automating 3D echocardiographic image analysis

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3rd international conference on Medical image Computing and computer-Assisted Intervention, MICCAI 2000

作者： Sanchez-Ortiz, Gerardo I. Declerck, Jérôme Mulet-Parada, Miguel Alison Noble, J. Medical Vision Laboratory Department of Engineering Science University of Oxford Parks Road OxfordOX1 3PJ United Kingdom

ISBN: (纸本)3540411895

3D echocardiography is a recent cardiac imaging method actively developed for quantitative analysis of heart function. A major barrier for its use as a quantitative tool in routine clinical practice is the absence of accurate and robust segmentation and tracking methods necessary to make the analysis fully automatic. In this article we present a fully-automated 3D echocardiographic image processing protocol for assessment of left ventricular (LV) function. We combine global image information provided by a novel multi-scale fuzzy-clustering segmentation algorithm, with local boundaries obtained with phase-based acoustic feature detection. We fit and track the LV surface using a 4D continuous transformation. To our knowledge this is the first report of a completely automated method. The protocol is viable for clinical practice. We exhibit and compare qualitative and quantitative results on three 3D image sequences that have been processed manually, in semi-automatic manner, and in fully automated fashion. Volume curves are derived and the ejection fractions errors with respect to manual segmentation are shown to be below 5%. © Springer-Verlag Berlin Heidelberg 2000.

关键词： Echocardiography

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vision-based traffic surveillance system on the Internet 3

Vision-based traffic surveillance system on the Internet

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3rd international conference on Computational Intelligence and Multimedia Applications, ICCIMA 1999

作者： Park, Se Hyun Jung, Keechul Hea, Jun Koo Kim, Hang Joon Department of Computer Engineering Kyungpook National University Taegu Korea Republic of

ISBN: (纸本)0769503004

Many research projects are currently in progress on the application of machine vision to traffic surveillance systems. We present a vision based traffic surveillance system on the Internet. Our system consists of FPAs (Field processing Agents) and TSM (Traffic Surveillance Manager). The FPAs and TSM both communicate with each other on the Internet. The FPA is a Web server which serves real time video data, vehicle velocity and vehicle density when the TSM requests them. An FPA consists of a communication module and an image processing module. The image processing module in the FPA performs traffic parameter estimation. Traffic parameters are estimated by just processing groups of image pixels without any understanding of the image. Although this has an accuracy limitation, it can be used in applications requiring an approximate vehicle density and vehicle velocity. © 1999 IEEE.

关键词： Security systems

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3rd international conference on Visual Information Systems, VISUAL 1999

作者： Mokhtarian, Farzin Abbasi, Sadegh Centre for Vision Speech and Signal Processing Department of Electronic and Electrical Engineering University of Surrey Guildford SurreyGU2 5XH United Kingdom

ISBN: (纸本)3540660798

The application of Curvature Scale Space representation in shape similarity retrieval under affine transformation is addressed in this paper. The maxima of Curvature Scale Space (CSS) image have already been used to represent 2-D shapes in different applications. The representation has shown robustness under the similarity transformations. Scaling, orientation changes, translation and even noise can be easily handled by the representation and its associated matching algorithm. In this paper, we also consider non-uniform scaling and examine the performance of the representation under affine transformations. It is observed that the performance of the method is promising even under severe deformations caused by the transformation. The method is evaluated objectively through a very large classified database and its performance is compared with the performance of two well-known methods, namely Fourier descriptors and moment invariants. © Springer-Verlag Berlin Heidelberg 1999.

关键词： Affine transforms

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Iamascope: A musical application for image processing

Iamascope: A musical application for image processing

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3rd IEEE international conference on Automatic Face and Gesture Recognition

作者： Fels, S Mase, K ATR MI&C Res Labs Kyoto 61902 Japan

ISBN: (纸本)0818683449

The Iamascope is an interactive, electronic kaleidoscope. The Iamascope combines computer video, graphics, vision, and audio technology for performers to create striking imagery and sound with this aesthetically uplifting interactive device. In the installation, the user takes the place of a colourful piece of floating glass inside the kaleidoscope, and simultaneously views a kaleidoscopic image of themselves on a huge screen in real time. By applying image processing to the kaleidoscopic image, users' body movements also directly control music in a beautiful dance of symmetry with the image. The image processing uses simple intensity differences over time which are calculated in real-time. The responsive nature of the whole system allows users to have an intimate, engaging, satisfying, multimedia experience.

关键词： image processing

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Real-time obstacle detection on a massively parallel linear architecture

Real-time obstacle detection on a massively parallel linear ...

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IEEE international conference on Algorithms and Architectures for Parallel processing (ICAP)

作者： M. Bertozzi A. Broggi A. Fascioli Dipartimento di Ingegneria dell'Informazione Universita di Parma Parma Italy

This paper presents a real-time solution to the problem of obstacle detection in automotive applications using image processing techniques. To speed-up the processing a massively parallel engine has been used and the algorithms tuned to match the specific features of the computing architecture. The system acquires pairs of stereo images, checks for correspondences, and remaps the resulting image in a new domain to ease the following processing steps. The whole processing is performed on PAPRICA-3, a massively parallel system whose processing elements are disposed on a linear array; the proposed system can reach video rate performance.

关键词： Road vehicles Cameras computer architecture computer vision Vehicle detection Space vehicles Vehicle safety Layout Automotive applications image processing

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Crater wear measurement using computer vision and automatic focusing

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JOURNAL OF MATERIALS processing TECHNOLOGY 1996年第4期58卷 362-367页

作者： Yang, MY Kwon, OD SAMSUNG ELECT SEOULSOUTH KOREA

In this paper we present a technique to measure the crater wear using image processing and automatic focusing. The new contour detection algorithm, which can adapt in a noisy image, is suggested. It is suitable for eliminating high frequency noises without blurring and with lower processing time. An automatic focusing technique is applied to measure a crater wear depth with a one-dimensional search algorithm for finding the best focus. This method is implemented in the tool microscope driven by a servo motor. The results show that the contour and the depth of crater wear can be measured reliably.

关键词： crater wear contour detection autofocusing

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