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2011 International Conference on Computational and Information Sciences

21-23 Oct. 2011

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Displaying Results 1 - 25 of 319
  • [Front cover]

    Publication Year: 2011, Page(s): C1
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  • [Title page i]

    Publication Year: 2011, Page(s): i
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  • [Title page iii]

    Publication Year: 2011, Page(s): iii
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  • [Copyright notice]

    Publication Year: 2011, Page(s): iv
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  • Table of contents

    Publication Year: 2011, Page(s):v - xxiv
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  • Preface

    Publication Year: 2011, Page(s): xxv
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  • Conference Committees

    Publication Year: 2011, Page(s):xxvi - xxvii
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  • Reviewers

    Publication Year: 2011, Page(s): xxviii
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  • Progressive Wavelet Coding of Images Using Linear Indexing Technique

    Publication Year: 2011, Page(s):3 - 6
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB) | HTML iconHTML

    Progressive Wavelet Coding of Images (PWC) is a simple and efficient image coding algorithm. It allows for progressive image encoding that is scalable both in resolution and bit rate. But its reordering and un-reordering algorithms are very complex and computation speed is limited, so this paper proposes a more efficient linear indexing technique that can be used to improve the reordering and un-r... View full abstract»

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  • A Novel Hardware Acceleration Implementation for Parallel Finite-Difference Time-Domain Simulation

    Publication Year: 2011, Page(s):7 - 10
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (161 KB) | HTML iconHTML

    This article introduces a novel hardware acceleration technique based on Vector Arithmetic Logic Unit (VALU) built in a regular CPU for parallel Finite-Difference Time-Domain(FDTD) simulation with Convolutional Perfect Matched Layer(CPML) absorbing boundary condition (ABC), and gives an implementation on PC. The speedup ratio is 2.85. The experimental results show that this kind of acceleration te... View full abstract»

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  • The Comparison of Protein Secondary Structure Based on the Graphical Representation

    Publication Year: 2011, Page(s):11 - 14
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (179 KB) | HTML iconHTML

    Protein structure comparison has become the important contents of life science. This paper gives the protein secondary structure of a new kind of 2 - D graphical representation, which put the protein secondary structure into the plane point columns. Fitting curve is obtained by distribution characteristics of point columns. And using the frequency of á- helix, â-sheet and no rules curl... View full abstract»

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  • Improvement on Image Decomposition Based on Morphological Component Analysis

    Publication Year: 2011, Page(s):15 - 17
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (399 KB) | HTML iconHTML

    This paper proposes a new method for image decomposition based on MCA. The basic idea presented in this paper is the use of non sub sampled contour let transform to represent structure parts, and the double density wavelet transform for the texture parts, then the Besov semi-norm is added for restricting structure parts. Finally, the block-coordinate-relaxation method is used to solve the new mode... View full abstract»

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  • Accelerating Biological Sequence Alignment Algorithm on GPU with CUDA

    Publication Year: 2011, Page(s):18 - 21
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (168 KB) | HTML iconHTML

    In this paper, we have used Compute Unified Device Architecture (CUDA) GPU to accelerate pair wise sequence alignment using the Smith-Waterman (SW) algorithm. Smith-Waterman(SW) is by far the best algorithm for its accuracy in similarity scoring. But the executing time of this algorithm is too long in sequence alignment. So we describe a multi-threaded parallel design and implementation of the Smi... View full abstract»

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  • An Enhancement Algorithm for Video Surveillance Image Based on Multi-scale Retinex

    Publication Year: 2011, Page(s):22 - 25
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (222 KB) | HTML iconHTML

    Aiming at the similarity of adjacent frame image's background and light in video surveillance, it legitimately uses of the information between frames and builds an enhancement algorithm for video surveillance image based on multi-scale Retinex. This algorithm uses different scales and parameters Gauss low pass filter to filter each frame image, takes Minimum operation for filter results, extracts ... View full abstract»

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  • Two-Level-Granularity Manifold Learning Algorithm for Video Visualization

    Publication Year: 2011, Page(s):26 - 29
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (233 KB) | HTML iconHTML

    Visualization of high-dimensional video data is an important problem in computer vision and machine learning. It not only needs to find the low-dimensional intrinsic laws of video set, but also explores the low-dimensional geometric distribution of all frames from videos. This paper presents a new technique called "Two-level-granularity Manifold Learning (TML)" that visualizes high-dimensional vid... View full abstract»

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  • The Research and Implementation on Edge Detection Algorithms of Ochotona Curzoniae's Image Based on Grayscale Morphology

    Publication Year: 2011, Page(s):30 - 33
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB) | HTML iconHTML

    Ochotona curzoniae is one of the main creature calamities in Qinghai-Tibet Plateau. With the development of advanced biological recognition technologies, a new scientific method is provided for the Ochotona curzoniae's research using the automatic identification system of the Ochotona curzoniae. Image processing is one of the important procedures in the automatic identification system of the Ochot... View full abstract»

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  • Fingerprint Image Enhancement Based on Morphological Filter

    Publication Year: 2011, Page(s):34 - 37
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5238 KB) | HTML iconHTML

    Fingerprint image enhancement is a essential preprocessing step to ensure good performance in Automatic Fingerprint Identification System (AFIS). In this paper, we proposed a new fingerprint enhancement algorithm based on morphological filter. This algorithm first employs the idea of median filtering based on the Mehtre method to obtain a reliable ridge orientation field. And then it designes a mo... View full abstract»

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  • Shape Context Based Video Texture Synthesis from Still Images

    Publication Year: 2011, Page(s):38 - 42
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (462 KB) | HTML iconHTML

    A video texture provides a continuous varying stream of images. In this paper, we introduce a new algorithm that allows the user to easily produce a visually plausible video texture from a small collection of still images. In order to approximate the original temporal order of the scene, we apply a shape context based order recovery algorithm to the still images. The frame sequence is subsequently... View full abstract»

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  • A Novel Filter Banks and Application in Image Compression

    Publication Year: 2011, Page(s):43 - 46
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB) | HTML iconHTML

    Based on the wavelets theory, a nonlinear optimization model is established to design a class of new filter banks which are known as quasi-orthogonal filter banks. They have mathematical properties such as finite impulse response, symmetry, linear phase, regularity and so on. The proposition that the quasi-orthogonal filter banks have only odd order regularity is proofed. Peak signal-to-noise rati... View full abstract»

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  • Memory Access Characterization of Scientific Applications on GPU and Its Implication on Low Power Optimization

    Publication Year: 2011, Page(s):47 - 52
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (221 KB) | HTML iconHTML

    Following current IC design technology trend, modern GPUs integrate more and more processing cores, and the speed gap between processor and memory system becomes even larger. As the number of cores continually increases, the available bandwidth per core decreases correspondingly. Therefore, memory access performance has been one of the most critical bottlenecks for better performance. This paper a... View full abstract»

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  • A Robust Audio Sonic Watermarking Algorithm Oriented Air Channel

    Publication Year: 2011, Page(s):53 - 57
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (199 KB) | HTML iconHTML

    A robust audio sonic watermarking algorithm oriented air channel has been proposed. The algorithm is based on DCT transform, using Barker code as synchronization code sequence. Coefficients of low frequency were chosen to be modified for completing embedding. This algorithm can effectively resist various attacks and interference with air channel, Also it can effectively against cropping MP3 compre... View full abstract»

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  • Analysis of Efficient Band Matrix Storage

    Publication Year: 2011, Page(s):58 - 61
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (155 KB) | HTML iconHTML

    On the basis of in-depth analysis of the band matrix of the nature, this paper summarizes three storage rules-given by rows, by columns and by diagonals, and a one-dimensional array of compressed storage mapping function. View full abstract»

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  • Pretreatment on Initial Value of Image Restoration Models with Different Boundary Conditions

    Publication Year: 2011, Page(s):62 - 65
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (197 KB) | HTML iconHTML

    In this paper we present a simple but very effective pretreatment on the initial value applied to two kinds of time dependent image restoration model. Two kinds of images and two kinds of boundary conditions (BCs) are used for our numerical experiments. Numerical results demonstrate that the little change accelerates the convergence and gets a better restoration effect. View full abstract»

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  • ALIRS: A High Scalability and High Cache Hit Ratio Replacement Algorithm

    Publication Year: 2011, Page(s):66 - 70
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (175 KB) | HTML iconHTML

    Nowadays, many systems face to the problem of sharp increase in user data. In order to get efficient access to data, they need a cache system that adopts a replacement algorithm which has both high cache hit ratio and high scalability. However, the mainstream replacement algorithms, which are just like a seesaw between high scalability and high cache hit ratio, cannot get both of the two features ... View full abstract»

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  • A New Image Interpolation Algorithm Based on Pulse-Coupled Neural Networks

    Publication Year: 2011, Page(s):71 - 74
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (398 KB) | HTML iconHTML

    To reduce the edge saw tooth and blur of image during the digital image interpolation, a new image interpolation method base on Pulse-Coupled Neural Networks (PCNN) is proposed. Firstly, the clusters and the propagation paths of pulse are obtained by using the synchronous pulse burst property of PCNN. Different interpolation methods are used in the inner of clusters and at the intervals of cluster... View full abstract»

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