By Topic

Proceedings International Conference on Information Technology: Coding and Computing (Cat. No.PR00540)

27-29 March 2000

Filter Results

Displaying Results 1 - 25 of 87
  • Proceedings International Conference on Information Technology: Coding and Computing (Cat. No.PR00540)

    Publication Year: 2000
    Request permission for commercial reuse | PDF file iconPDF (410 KB)
    Freely Available from IEEE
  • Index of authors

    Publication Year: 2000, Page(s):527 - 530
    Request permission for commercial reuse | PDF file iconPDF (12 KB)
    Freely Available from IEEE
  • A wavelet-based technique for image similarity estimation

    Publication Year: 2000, Page(s):207 - 212
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (116 KB)

    In this paper we proposed a method to evaluate the similarity of images compressed by a given digital wavelet transform, which allows for comparing lossless or lossy-compressed images. Two features that describe the image structural content, edge point locations and edge density, are computed directly from multiscale data. Depending on the image type and the feature selections for processing, the ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Recursive depth estimation from a sequence of images

    Publication Year: 2000, Page(s):201 - 206
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (128 KB)

    This paper gives the theoretical framework for recursively estimating the depth and motion parameters from the image motion equation derived using the spherical projection. An extended Kalman filter is employed for estimation. Results have been found to be encouraging in some cases when applied on two case studies involving vase and cube respectively View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Global rate control scheme for MPEG-2 HDTV parallel encoding system

    Publication Year: 2000, Page(s):195 - 200
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (64 KB)

    This paper proposes a new rate control scheme for an MPEG-2 HDTV parallel encoding system consisting of multiple encoding units. In this rate control scheme, the target number of bits is allocated to each encoding unit every frame period using the complexity of the divided parts of an image. We evaluate this rate control scheme and verify that its image quality is as good or better than that of si... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • OctMesh-interactive mesh browsing over the Internet

    Publication Year: 2000, Page(s):104 - 108
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB)

    This paper proposes OctMesh, an interactive mesh browsing scheme over the Internet. In OctMesh, a large-scale mesh is encoded into one bit-stream, which is organized with respect to spatial locality and resolution. When the mesh is viewed over the Internet, by examining the user's viewpoint, the compressed mesh with desired locality and resolution is streamed to the client. OctMesh enables a large... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A hard real-time tasks model for the VBR video server

    Publication Year: 2000, Page(s):190 - 194
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (96 KB)

    At the design of the video server to service video data as real-time, we must consider network bandwidth, buffer space and disk bandwidth. As buffer space and disk bandwidth affect each other tightly, they should be considered at the same time. In this paper, we propose the hard real-time tasks' model for the streams on the video server. The stream on the server can be considered as the hard real-... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wireless multimedia communication through multichannel multipoint distribution service

    Publication Year: 2000, Page(s):98 - 103
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    The multichannel multipoint distribution service (MMDS) spectrum has been the focus for a variety of business ventures and technologies over the past twenty years and is anticipated to be the at the forefront for competitive multimedia services to the consumer in the near future. We review the architecture and technical challenges encountered in the design and deployment of a digital video broadca... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Tracing and proving ownership of digital objects

    Publication Year: 2000, Page(s):184 - 187
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    If C is a p-ary code of length n and a(1) and a(2) are two codewords, then a(3) is called a descendant of a(1) and a(2) if ai(3)∈{ai(1), ai (2)} for i=1,…, n. We are interested in codes C with the property that if a(1), a(2)∈C then a ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Designing hypermedia documentation for safety critical applications

    Publication Year: 2000, Page(s):247 - 252
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (44 KB)

    The paper discusses the requirements for authoring methodologies for large multimedia systems to be used for technical documentation in the domain of `safety critical' industries. In such industries the documentation used to support maintenance and repair may itself be safety critical, in that incorrect documentation can lead to incorrect maintenance procedures. Design issues for such systems incl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A unified derivation of operational matrices for integration in systems analysis

    Publication Year: 2000, Page(s):436 - 442
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB)

    Using the operational matrix of an orthogonal function to perform integration for solving, identifying and optimizing a linear dynamic system has several advantages: (1) the method is computer oriented, thus solving higher order differential equations becomes a matter of dimension increasing; (2) the solution is a multi-resolution type; (3) the answer is convergent, even the size of increment is v... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Object-relational database management system (ORDBMS) using frame model approach

    Publication Year: 2000, Page(s):375 - 379
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (48 KB)

    This paper describes a methodology and development approach to implement an object relational database management system (ORDBMS) with the frame model (Fong, 1997). The frame model method is a solution to extend relational database management systems (RDBMS) to handle complex data such as objects. Objects can be represented in a frame model schema as classes, constraints and methods. Schema transl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Projection-based multiuser receiver over frequency selective channels

    Publication Year: 2000, Page(s):92 - 97
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    In multiuser communication, the receiver's performance is degraded by multiuser interference (MUI) as well as multipath distortions. This paper aims at elimination of these side effects. By projecting the received data onto the orthogonal code space of interfering users, equivalent single user and MUI free data vectors are obtained. Since the projection matrix consists of orthonormal bases, the wh... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Transmitting datacubes over congested networks

    Publication Year: 2000, Page(s):360 - 365
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (148 KB)

    Online analytical processing is an emerging technique for the implementation of decision support applications that access remote datacubes over information highways. We propose a novel approach for sending datacubes over congested networks, so that, in order to preserve fast response time, some datacube tuples can be eventually lost but yet preserving a good approximation of the overall datacube. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Parallel real-time numerical computation: beyond speedup. III

    Publication Year: 2000, Page(s):428 - 435
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    For pt. II see Technical Report No. 99-423, Dept. of Comput. and Inf. Sci., Queen's University, Kingston, Ontario, May 1999. Parallel computers can do more than simply speed up sequential computations. They are capable of finding solutions that are far better in quality than those obtained by sequential computers. This fact is demonstrated by analyzing sequential and parallel solutions to numerica... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fast fractal image compression

    Publication Year: 2000, Page(s):54 - 59
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1832 KB)

    In this paper, we propose a method of regional search for fractal image compression and decompression. In this method, the search for fractal codes is carried out in a region of the image instead of over the whole image. Because the area surrounding a partitioned block has a high probability of being similar to the block, the use of regional search to find the fractal codes results in sharply redu... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimizing processing of query subscription in an WDM network environment

    Publication Year: 2000, Page(s):510 - 515
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    We examine query subscription processing in a wavelength division multiplexing (WDM) network environment. The users (clients) launch their queries through the Internet to an information center which consists of several servers. The information center then assigns proper servers to process the queries, and sends the query results back to the users. We first model the problem in terms of several opt... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Document skew detection using minimum-area bounding rectangle

    Publication Year: 2000, Page(s):253 - 258
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (292 KB)

    Detection of document skew is an important step in document image analysis. The paper presents a new method for calculation of document skew. The method forms large connected components by a smoothing algorithm and calculates the document skew by finding the orientation of the minimum-area bounding rectangle of one of several connected components. Connection of text to non-text in the smoothing st... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Overview of interference cancellation for CDMA wireless systems

    Publication Year: 2000, Page(s):86 - 91
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    The paper gives an overview of interference cancellation (IC) methods, in terms of implementation and performance, for third generation CDMA communications systems. The signal processing of each method is outlined and the advantages and challenges are discussed. An exemplary IC application at the mobile receiver and its performance are presented for the WCDMA system setup View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new approach for load balancing using differential load measurement

    Publication Year: 2000, Page(s):355 - 359
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (60 KB)

    In distributed systems uneven arrival of the tasks may overload few hosts keeping the rest of the hosts lightly loaded or even idle. This results in overall poor system performance in spite of the system capabilities. To utilize the capabilities of distributed systems load balancing can be used. Load balancing always comes with a lot of overheads. We propose an algorithm based on differential load... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Segmentation and validation of commercial documents logical structure

    Publication Year: 2000, Page(s):242 - 246
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (100 KB)

    The main objective of the work is to present an approach to extract and validate the logical structure from the images that compose a commercial document. The nearest neighbor rule algorithm was used for labeling the elements, and the Run Length Smoothing Algorithm (RLSA) was used to segment the image of a commercial document of the type letter, official letter or memo. The most common classes con... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • TASOM: the time adaptive self-organizing map

    Publication Year: 2000, Page(s):422 - 427
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    The time-decreasing learning rate and neighborhood function of the basic SOM (self-organizing map) algorithm reduce its capability to adapt weights for a varied environment. In dealing with non-stationary input distributions and changing environments, we propose a modified SOM algorithm called “time adaptive SOM”, or TASOM, that automatically adjusts the learning rate and neighborhood ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Application specific image compression for virtual conferencing

    Publication Year: 2000, Page(s):48 - 53
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (88 KB)

    Image compression has been an important research topic for many years. There are many kinds of compression techniques, but most of these do not fully take advantage of the characteristics of a target application. An example is virtual conferencing, one of the most popular applications in multimedia, which demands a huge network bandwidth. The paper presents an application-specific image compressio... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Intelligent heterogeneous multimedia and intelligent active visual DB and KB

    Publication Year: 2000, Page(s):470 - 476
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB)

    Intelligent multimedia provides a basis for designing active databases with agents, multimedia and intelligent objects. Intelligent multimedia techniques and paradigms are defined. Multimedia paradigms can be applied to customise with many facets for many application areas. The computing techniques, a language, the Morph Gentezen (1943) deductive system and its models are applied towards an active... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • How many pixels to watermark?

    Publication Year: 2000, Page(s):11 - 15
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    Watermark design and detection have been studied as two separate problems so far. However, we show that, if the watermarking algorithm is based on the watermark detection method, then significant gains can be achieved. With a watermark detector based on a sequential hypothesis test rather than a fixed sample size test, the number of watermark pixels can be reduced almost by a factor of two for sma... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.