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Scheme Design for Communication between Network Port and Serial Port based on ARM

Scheme Design for Communication between Network Port and Ser...

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2012 3rd international conference on Information technology for Manufacturing systems(ITMS 2012)

作者： Zhen Xiaoqiong YAO Zhendong WANG Wenbin Chengdu University of Information Technology CMA Key laboratory of Atmospheric Sounding Operation Department Ertan Hydropower plant Panzhihua Sichuan China

The data transmission scheme between a transmission control protocol/internet protocol(TCP/IP) network port and a serial port based on an ARM embedded system is introduced in the paper. The data transmission between a personal computer(PC) and remote equipment through an internet is realized. The structure of a hardware platform is simply introduced, the cutting and transplant of operating system, the communication program design of the network port and the serial port and the cross compiling between the two ports are introduced in detail. The AT91SAM9261 chip of ATMEL Corporation is employed as the embedded board of a kernel processor. The Redhat9 Linux operating system is employed as a software development platform, an ARM-Linux operating system is employed as a program operation platform and the kernel version is Linux-2.6.2. The C program is used and an ARM-Linux-GNU tool chain is used for the cross compiling. The experimental result proves that the real-time, parallel full duplex data transmission between the network port and the serial port is realized by the scheme provided in the paper.

关键词： ARM network port TCP/IP serial port internet remote control

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Description Logic based Icons Semantics:An Ontology for Icons

Description Logic Based Icons Semantics:An Ontology for Icon...

引用

2012 IEEE 11th international conference on signal Processing(ICSP 2012)

作者： Nathalie Cindy KUICHEU Ning WANG Gile Narcisse FANZOU TCHUISSANG Franois SIEWE De XU School of Computer and Information Technology Beijing Jiaotong University Software Technology Research Laboratory Faculty of TechnologyDe Montfort UniversityUnited Kingdom

Iconic communication is paramount today in order to assist people with disability (e.g. illiteracy) enjoying, as much as everybody else, the advances in information and communication technologies (e.g. internet). Previous works tend to generalize iconic communication by translating iconic sentences into XML documents. Theses approaches are limited owing to the fact that an icon can hide several metaphors. In fact, the semantics of an icon is not the linguistic equivalent associated to the image, but is a set of attributes which can be used to describe the given icon. Second, an XML schema is not a knowledge representation, but just a message format. Therefore, to manage the knowledge hidden behind iconic sentences, a semantic model for icons needs to be formally defined. This paper extends previous icon models by first, introducing a description logics-based definition of icons semantics, and second, based on those formal definitions and the Web Ontology Language (OWL) , we create an Ontology for Icons named IcOnto (read "eye can too"). We further use IcOnto to model some properties of the African Traditional Medicine (ATM), for illustration.

关键词： Iconic systems, OWL Ontology, Description Logics, African Traditional Medicine.

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The Characteristics of Spread Spectrum CDMA based systems and China Market Impacts

The Characteristics of Spread Spectrum CDMA Based Systems an...

引用

international conference on Wireless Communications, Networking and Mobile Computing (WiCom)

作者： Tristan Daladier Engouang Liu Yun School of Electronic and Information Engineering Beijing Jiaotong University Beijing China

ISBN: (纸本)9781612846842

The new generations of mobile technologies and the services, they aim to offer have been a subject of debate in the wireless world for the past two decades. Because the only factor to meet the world standard development's requirement is all about using the information technology [1], the developments in the mobile industries have shown a very important advancement as the mobile data consumption enables not only to improve the capacity in the coverage of mobile network, but also to increase the capabilities of mobile applications. Accessing and transmitting high definitions data such as high-speed data, voice signal, video, multimedia and internet is now possible with spread spectrum code division multiple access based techniques[2]. With the mobile technologies becoming a part of our daily life in recent years, the actual wireless network structure has changed because of the huge demand of data traffic, and different multiple access schemes arising likely three being adopted as international standard for digital communication by the third generation partnership project (3GPP). In order to support the digital communication among the still growing community and from wherever their geographical location is, these three standards have been well implemented and spread all over with an unpredictable speed in China. For about a decade now in China, three major carriers China Mobile, China Unicom and China Telecom are providing respectively the TD- SCDMA, W-CDMA and CDMA 2000, with an important impact that influenced the China market, experiencing an unprecedented growth and success lately in terms of the increasing demand in wireless technology consumption with hardware and software. Meanwhile the Chinese TD-SCDMA has influenced considerably to globally reduce the system license cost proposed by patent holders. In this paper, we present a comprehensive review of spread spectrum CDMA scheme based system with a focus on key techniques of capacity and capabilities. We expound

关键词： Multiaccess communication Mobile communication Base stations Wireless communication Mobile computing Bandwidth Interference

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Retrieval of images using mean-shift and Gaussian mixtures based on weighted color histograms

Retrieval of images using mean-shift and Gaussian mixtures b...

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7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Bouker, Mohamed Ali Hervet, Eric Computer Science Department University of Moncton Moncton NB Canada

ISBN: (纸本)9780769546353

The topic of this paper is Content-based image Retrieval (CBIR) based on colors as a content image descriptor. The tool we developed to that purpose modelizes the colors of an image as a set of 2D Gaussian distributions based on weighted color histograms. Then, given a reference image proposed by a user, the system can automatically classify the image and provide the user with the most similar images to the reference image in its category. Experiments with Corel-1000 dataset demonstrate that our method outperforms the known implementations. © 2011 IEEE.

关键词： Color

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Scan based lossless image compression scheme

Scan based lossless image compression scheme

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7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Ouni, Tarek Ktari, Jalel Lassoued, Arij Abid, Mohamed CES-Laboratory National Ingineering School of Sfax Sfax Tunisia

ISBN: (纸本)9780769546353

In this paper we propose a new lossless image compression method. The suggested method relies on novel selective scan process that aims to scan the image in the direction where minimal pixel intensity change is recorded. Such scan process would reduce high frequency data, in order to provide a smooth and high correlated mono-dimensional signal easy to compress. This scan process is followed by an adapted coding scheme based on DPCM and Huffman algorithms. The experimental results show a significant compression improvement of the suggested method as compared to two common lossless coders in the same class. © 2011 IEEE.

关键词： image compression

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A spectral dissimilarity constrained nonnegative matrix factorization based cancer screening algorithm from hyperspectral fluorescence images

A spectral dissimilarity constrained nonnegative matrix fact...

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international conference on Computerized Healthcare ICCH

作者： Bo Du Liangpei Zhang Dacheng Tao Nan Wang Tao Chen School of Computer Science LISEMARS Wuhan University Wuhan China Centre for Quantum Computation and Intelligent Systems University of Technology Sydney Australia Institute of Geophysics and Geomatics China University of Geosciences Wuhan China

ISBN: (纸本)9781467351287

Bioluminescence from living body can help screen cancers without penetrating the inside of living body. Hyperspectral imaging technique is a novel way to obtain physical meaningful signatures, providing very fine spectral resolution, that can be very used in distinguishing different kinds of materials, and have been widely used in remote sensing field. Fluorescence imaging has proved effective in monitoring probable cancer cells. Recent work has made great progress on the hyperspectral fluorescence imaging techniques, which makes the elaborate spectral observation of cancer areas possible. So how to propose the proper hyperspectral image processing methods to handle the hyperspectral medical images is of practical importance. Cancer cells would be distinguishable with normal ones when the living body is injected with fluorescence, which helps organs inside the living body emit lights, and then the signals can be catched by the passive imaging sensor. Spectral unmixing technique in hyperspectral remote sensing has been introduced to detect the probable cancer areas. However, since the cancer areas are small and the normal areas and the cancer ares may not pure pixels so that the predefined endmembers would not available. In this case, the classic blind signals separation methods are applicable. Considering the spectral dissimilarity between cancer and normal cells, a novel spectral dissimilarity constrained based NMF method is proposed in this paper for cancer screening from fluorescence hyperspectral images. Experiments evaluate the performance of variable NMF based method and our proposed spectral dissimilarity based NMF methods: 1) The NMF methods do perform well in detect the cancer areas inside the living body; 2) The spectral dissimilarity constrained NMF present more accurate cancer areas; 3) The spectral dissimilarity constraint presents better performance in different SNR and different purities of the mixing endmembers.

关键词： Hyperspectral imaging Cancer Imaging Fluorescence signal to noise ratio Materials

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A new PSO based kernel clustering method for image segmentation

A new PSO based kernel clustering method for image segmentat...

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7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Slimene, Alya Zagrouba, Ezzeddine University of Tunis El Manar 2 Rue Abou Rayhane Bayrouni 2080 Ariana Tunisia

ISBN: (纸本)9780769546353

In this paper a novel kernel clustering method is proposed. The application of the proposed clustering algorithm to the problem of unsupervised classification and image segmentation task is investigated. The proposed method provides a new scheme for classifying objects of one data set without any prior knowledge on the number of naturally occurring regions in the data or an assumption on clusters shapes. It's based on the use of Particle Swarm Optimization (PSO) algorithm and the use of core set concept which is commonly used to resolve the Minimum Enclosing Ball (MEB) problem. The performance of the proposed method has been compared with a few state of the art kernel clustering methods over a test of artificial data and the Berkeley image segmentation dataset. © 2011 IEEE.

关键词： image segmentation

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Evaluating the impact of the development of innovative products: A Multi-Agent systems based methodology

Evaluating the impact of the development of innovative produ...

引用

7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Toledo, F. Boly, V. Camargo, M. Monticolo, D. Laboratoire ERPI Institut National Polytechnique de Lorraine Nancy France

ISBN: (纸本)9780769546353

This article highlights the need to assess the impact of the innovation over its environment in general sense, as a factor determining its future success. This impact has to be evaluated, not only taking into account the vendor-customer relationship, but studying the entire network of actors of the innovation's environment. First, a comprehensive analysis of the meaning of the term impact is made, its implications and the ways of measured it are exposed as well. The relevance of the Multi-Agent systems (MAS) to represent and formalize the network of actors and its dynamic (dependency and interaction) is evaluated. Then, a new impact assessment methodology based in multi-agent systems is proposed and illustrated through an example. © 2011 IEEE.

关键词： Multi agent systems

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Detection of a region of interest in the images based on Zipf laws

Detection of a region of interest in the images based on Zip...

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7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Meriem, Hamoud Farida, Merouani Hayet Equipe SRF Université BadjiMokhtar Annaba Algeria

ISBN: (纸本)9780769546353

Models of power laws such as Zipf's law and inverse Zipf can be applied to images. For this, we define patterns and coding that reduce the number of different patterns to characterize the complexity of the structural contents of the image. It allows to envisage applications of these models such as the detection of a region of interest in an image, different codings can be used to define the patterns, the image is segmented into sub-images and is performed by a classification of sub-images according to the properties of the laws associated powers. The result of this classification is used to detect a region of interest in the image. To improve the results given by Zipf's law or inverse Zipf individually, we used simultaneous the methods of Zipf and inverse Zipf and two different encodings, the general rank and 9 classes. Regions of interest obtained with these methods correspond to those who are recognized by a human observer. © 2011 IEEE.

关键词： image segmentation

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Classification of low level visual texture features based on the Hermite transform

Classification of low level visual texture features based on...

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7th international conference on signal image technology and internet-based systems, SITIS 2011

作者： Estudillo-Romero, Alfonso Escalante-Ramirez, Boris Universidad Nacional Autonoma de Mexico Fac. de Ingenieria Ciudad Universitaria C.P. 04510 Mexico D.F. Mexico

ISBN: (纸本)9780769546353

A biological inspired image analysis technique to extract visual texture features is presented. The Hermite transform describes locally basic image features in terms of Gaussian derivatives. Multiresolution combined with several derivative orders of analysis provides detection of patterns that characterize every texture class. Maximum energy direction analysis and steering of the transformation coefficients increase the method robustness against the texture orientation. Texture features are computed by extracting statistical information from the orientation-invariant visual features and arranged into a compact vector. The PCA technique is used to select the most significant linear combinations of the vector elements to reduce vector dimensionality. We evaluate the correct classification rate for several kinds of texture features with real textures sets and the effects of the number of principal components on the classification performance. © 2011 IEEE.

关键词： image classification

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