Proceedings 2001 International Conference on Image Processing (Cat. No.01CH37205)

7-10 Oct. 2001

Go

Filter Results

Displaying Results 1 - 25 of 283
  • Proceedings 2001 International Conference On Image Processing [front matter]

    Publication Year: 2001, Page(s):i - lxx
    Request permission for commercial reuse | PDF file iconPDF (4876 KB)
    Freely Available from IEEE
  • Memory hierarchy exploration for low power architectures in embedded multimedia applications

    Publication Year: 2001, Page(s):326 - 329 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB) | HTML iconHTML

    Multimedia applications are characterized by an increased number of data transfer and storage operations due to real time requirements. Appropriate transformations can be applied at the algorithmic level to improve crucial implementation characteristics. The effect of the data-reuse transformations on power consumption, area and performance of multimedia applications realized on embedded cores is ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Error-resilient mobile video by edge adapted multiscale transforms

    Publication Year: 2001
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (73 KB) | HTML iconHTML

    Summary form only given, as follows. Mobile video systems face particularly challenging problems due to the hostile nature of the mobile radio channel and the very low bit-rate available. For the fading channel, the Shannon separation principle does not hold, and hence source and channel coding should be considered jointly. This talk reviews some advances in our work on joint optimization of video... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Performance comparison of MPEG-4 scalable and non-scalable video streaming

    Publication Year: 2001
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (31 KB)

    Summary form only given, as follows. We first show that 3G wireless multimedia systems adopting scalable video encoding can achieve higher overall network utilization. Moreover, the problems of both packet loss and player rebuffering can degrade wireless streaming performance if the streaming video is non-scalable due to fading/retransmission and multi-user sharing. We demonstrate that these probl... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Wireless video-do standards matter?

    Publication Year: 2001
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (40 KB)

    Summary form only given, as follows. It is usually assumed that standards are an essential prerequisite for the exchange of various types of data, not least video. For as long as codecs have necessarily been implemented in dedicated hardware this has been true. Now, however, the ground-rules are changing rapidly. General-purpose processors are becoming more powerful but less power hungry. Java is ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Visualization and navigation in image database applications based on MPEG-7 descriptors

    Publication Year: 2001
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (31 KB)

    Summary form only given, as follows. The MPEG-7 standard is currently being developed to specify standardized interfaces that help users or agents to identify, filter, browse and efficiently retrieve audio-visual material. The purpose of the presentation is to provide an overview of the scope and potential of the MPEG-7 standard, with particular emphasis on no-text descriptors for visual content. ... View full abstract»

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

    Publication Year: 2001, Page(s):1111 - 1127
    Request permission for commercial reuse | PDF file iconPDF (1604 KB)
    Freely Available from IEEE
  • Generalised interpolation of segmented images using shape-independent orthogonal transforms

    Publication Year: 2001, Page(s):888 - 890 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    We develop a new method for object-oriented interpolation of images. It is an important tool in image processing, since using interpolation we can considerably decrease amount of data, necessary for image reconstruction. Application of this interpolation enables one to downsample object separately. The selected object can be processed at the different sampling level. This approach allows for examp... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Eye state tracking for face cloning

    Publication Year: 2001, Page(s):270 - 273 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This article presents an efficient approach to eye movement estimation by combining color and energy based image analysis algorithms. The movement is first analyzed and then described in terms of action units. A temporal state diagram is used to control the behavior of the analysis over time so that the movements of the eye can be synthesized from the former description, after translating them int... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Artifact reduction in sinc interpolation using adaptive filtering

    Publication Year: 2001, Page(s):884 - 887 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB) | HTML iconHTML

    We propose a new method for artifact reduction of upsampled multidimensional signals. These artifacts are evident near edges and they are due to the spectral narrowing associated with upsampling. The method is based on first upsampling the signal with conventional optimal sinc interpolation and then applying a local filter that reduces the high frequencies associated with the ringing artifacts alo... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Learning shape categories by clustering shock trees

    Publication Year: 2001, Page(s):672 - 675 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This paper investigates whether meaningful shape categories can be identified in an unsupervised way by clustering shock-trees. We commence by computing weighted and unweighted edit distances between shock-trees extracted from the Hamilton-Jacobi skeleton of 2D binary shapes. Next we use an EM-like algorithm to locate pairwise clusters in the pattern of edit-distances. We show that when the tree e... View full abstract»

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

    Publication Year: 2001, Page(s):266 - 269 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    We describe a system that automatically detects and recognizes human head gestures such as nodding and shaking in complex background conditions using a cheap Web camera under uncontrolled conditions. The images of the head, captured at 20 frames per second, are very noisy and are of a low resolution. The invariant moments of each image captured is extracted and is fed into a recognition system tha... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Image segmentation based on statistically principled clustering

    Publication Year: 2001, Page(s):66 - 69 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    A statistically principled approach to 1-dimensional clustering was introduced by Pauwels abd Frederix (2000). In this approach clustering is achieved by finding the smoothest density that is statistically compatible with the observed data. In the current contribution we propose two solutions for the optimisation problem that is at the heart of this algorithm. The first solution is based on spline... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Information extraction method without original image using turbo code

    Publication Year: 2001, Page(s):880 - 883 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This paper proposes a meaningful information extraction method using a channel code as a specific means for protecting copyright ownership without using the original image. The proposed scheme utilizes a bit-oriented turbo code as channel code and is required by a central authority for copyright protection from fake information. In simulation, we identify that the proposed system is very robust to... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A unified framework for wavelet transforms based on the lifting scheme

    Publication Year: 2001, Page(s):792 - 795 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB) | HTML iconHTML

    In the context of image coding, a number of reversible integer-to-integer wavelet transforms were previously proposed and compared with respect to their lossy compression performance, lossless compression performance, and computational complexity. Among the transforms, some of them were found to perform particularly well. In this paper, we propose a unified framework for several efficient transfor... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fast computation of morphological area pattern spectra

    Publication Year: 2001, Page(s):668 - 671 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB) | HTML iconHTML

    An area based counterpart of the binary structural opening spectra is developed. It is shown that these area opening and closing spectra can be computed using an adaptation of Tarjan's (1975) union-find algorithm. These spectra provide rotation, translation, and scale invariant pattern vectors for texture analysis View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Image spatial transformation in DCT domain

    Publication Year: 2001, Page(s):836 - 839 vol.3
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB) | HTML iconHTML

    In this paper, we report work on generalizing spatial relationships between the DCTs of any block and its sub-blocks, which paves the way for image processing in the JPEG compressed domain. The results reveal that DCT coefficients of any block can be directly obtained from the DCT coefficients of its sub-blocks and the inter-block relationship remains to be linear. Due to the fact that the corresp... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Minimum discrimination information clustering: modeling and quantization with Gauss mixtures

    Publication Year: 2001, Page(s):14 - 17 vol.3
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    Gauss mixtures have gained popularity in statistics and statistical signal processing applications for a variety of reasons, including their ability to approximate well a large class of interesting densities and the availability of algorithms such as EM for constructing the models based on observed data. We here consider a different motivation and framework based on the information theoretic view ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Minutiae data synthesis for fingerprint identification applications

    Publication Year: 2001, Page(s):262 - 265 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    In this paper, we address the false rejection problem due to the small solid state sensor area available for fingerprint image capture. We propose a minutiae data synthesis approach to circumvent this problem. The main advantages of this approach over the existing image mosaicing approach include low memory storage requirements and low computational complexity. Moreover, the possible matching sear... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Imaging applications of stochastic minimal graphs

    Publication Year: 2001, Page(s):573 - 576 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB) | HTML iconHTML

    This paper presents an overview of some of the theory and application of stochastic minimal graphs in the context of entropy estimation for imaging applications. Stochastic graphs which span a set of extracted image features can be constructed to yield consistent estimators of Jensen's entropy difference for between pairs of images. Unlike traditional plug-in entropy estimates based on density est... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Optimization of the joint coding/decoding structure

    Publication Year: 2001, Page(s):470 - 473 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    This paper considers the estimation scenario where an original image has undergone blurring, noise corruption and compression. The authors consider these unwanted effects jointly in the estimation formalism they propose. The contribution of the paper aims to address the joint coding/decoding formulation, involving a priori assumptions on the solution and knowledge of the imaging systems to account... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A flexible polygon representation of multiple overlapping regions of interest for wavelet-based image coding

    Publication Year: 2001, Page(s):808 - 811 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB) | HTML iconHTML

    Image transmission over low-bandwidth channels can be speeded up if the image coding mechanism supports regions of interest (RoIs). By such a scheme, image parts not belonging to RoIs can be encoded at a lower bitrate. This paper describes a flexible dynamic RoI scheme which supports the definition of arbitrarily-shaped RoIs before the start of the transmission process and the refinement of a part... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Object segmentation in stereo image using cooperative line field in stochastic diffusion

    Publication Year: 2001, Page(s):62 - 65 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    In the usual object segmentation, the main procedure is first motion estimation and then motion clustering to segment a few regions. This paper proposes a new approach to perform the segmentation using MAP-based motion estimation and the cooperative line field model. In this approach, the motion clustering or region classification are not performed to the segmentation, but the line field generates... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A fast affine projection algorithm for 2D filtering and linear prediction

    Publication Year: 2001, Page(s):876 - 879 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB) | HTML iconHTML

    A two-dimensional (2D) fast affine projection algorithm (FAPA) is presented for 2D adaptive filtering and linear prediction. The derivation of the proposed algorithm is based on the spatial shift invariant properties that 2D discrete time signals possess. The proposed algorithm has low computational complexity, comparable to that of the 2D LMS algorithm. The convergence speed and tracking ability ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Inference of directional spatial relationship between points: a probabilistic approach

    Publication Year: 2001, Page(s):704 - 707 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB) | HTML iconHTML

    This paper develops an evaluation of the position probability of a point C which is known to be in a direction β with respect to a point B, itself in the direction α with respect to another point A. The obtained results can be used in the problem of inference of directional relationships in the case of spatial reasoning View full abstract»

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