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

7-10 Oct. 2001

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  • Proceedings 2001 International Conference On Image Processing [front matter]

    Publication Year: 2001, Page(s):i - lxx
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    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»

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  • 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»

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  • 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»

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  • 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»

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  • 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»

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  • Author index

    Publication Year: 2001, Page(s):1111 - 1127
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    Freely Available from IEEE
  • A real-valued block filter bank with perfect-reconstruction property

    Publication Year: 2001, Page(s):186 - 189 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (224 KB) | HTML iconHTML

    This paper discusses the perfect reconstruction (PR) condition of a maximally decimated block filter bank, which uses cyclic convolutions instead of linear convolutions used in the usual filter banks. This type of filter bank is particularly useful for subband coding for image data. It is observed that the PR condition of the block filter bank is less restrictive than that of the usual FIR filter ... View full abstract»

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  • Multistatic passive radar imaging using the smoothed pseudo Wigner-Ville distribution

    Publication Year: 2001, Page(s):604 - 607 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    We investigate passive radar imaging of aircraft using reflected TV signals. We apply a smoothed pseudo Wigner-Ville distribution (SPWVD) based SAR imaging algorithm to two different scenarios. In the first simulation, a multistatic VHF-band dataset generated by fast Illinois solver code (FISC) is used. In the second simulation, a more realistic simulated passive radar dataset is used. A set of in... View full abstract»

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  • Texture classification by means of HMM modeling of AM-FM features

    Publication Year: 2001, Page(s):182 - 185 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    This paper studies the classification problem of non-rotated and rotated textures digitized from the Phil Brodatz Album. The proposed texture analysis technique is based on AM-FM characterization followed by HMM modeling. The detection of AM-FM features was performed via a Gabor filter bank presented in a multiresolution way. To solve the problem of texture rotation, a technique was applied to cor... View full abstract»

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  • MPEG-7 camera

    Publication Year: 2001, Page(s):600 - 603 vol.3
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    An MPEG-7 camera extends the capabilities of conventional cameras by analyzing its scene in order to generate a content-based description according to the recently approved MPEG-7 standard. This gives to the camera a large variety of current and potential applications, such as surveillance, augmented reality, and virtual display. This paper provides an overview of what is meant by an MPEG-7 camera... View full abstract»

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  • Detection of phases in sugar crystallization using wavelets

    Publication Year: 2001, Page(s):178 - 181 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    This paper presents an approach to the automatic supervision of the sugar crystallization process based on image-processing techniques. The detection of the different phases of the process is carried out by generating patterns from a wavelet decomposition of the microscopic images taken from the process View full abstract»

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  • Non-sequential video structuring based on video object linking: an efficient tool for video browsing and indexing

    Publication Year: 2001, Page(s):410 - 413 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB) | HTML iconHTML

    An efficient system for unsupervised structuring of stereoscopic sequences is presented. It generates links between similar VOPs (video object planes) of different shots. Particularly after shot cut detection, for each shot, a fast, unsupervised VOP detection and tracking algorithm is applied. Then for each of the foreground VOPs of a frame, a feature vector is constructed using low level features... View full abstract»

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  • Category-based image retrieval

    Publication Year: 2001, Page(s):596 - 599 vol.3
    Cited by:  Papers (5)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    This work presents a novel approach to content-based image retrieval in categorical multimedia databases. The images are indexed using a combination of text and content descriptors. The categories are viewed as semantic clusters of images and are used to confine the search space. Keywords are used to identify candidate categories. Content-based retrieval is performed in these categories using mult... View full abstract»

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  • MCGE: multi-candidate based group evolution in stereo matching

    Publication Year: 2001, Page(s):927 - 930 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB) | HTML iconHTML

    This paper addresses the subject of stereo matching between the corners of two perspectives. Similarity-based matching is prone to errors, and the existing algorithms reject outliers but never correct them. Frequently, in fact, the correct correspondence is not found at the single point with the largest similarity; but it lies among a few points with large value. So we propose a new algorithm, whi... View full abstract»

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  • A new edge-directed image expansion scheme

    Publication Year: 2001, Page(s):899 - 902 vol.3
    Cited by:  Papers (18)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (488 KB) | HTML iconHTML

    A new interpolation-based scheme for image expansion is introduced. In the proposed method, the fidelity and sharpness of edges in the expanded image is emphasized. This is achieved by applying edge-directed interpolation and edge sharpening operations. Compared with other methods, our method provides natural and sharp expanded images with light computational cost View full abstract»

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  • New operators for optimized orientation estimation

    Publication Year: 2001, Page(s):744 - 747 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    This paper focuses on directional textures. It provides a new framework for the design of convolution masks dedicated to orientation estimation. We propose a new technique based on the combination of two complementary operators: a gradient-based operator which is adapted to sloped regions and a valleyness detector which fits the crests and valleys. On each operator, a double optimization procedure... View full abstract»

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  • Textured polygonal model assisted facial model estimation from image sequence

    Publication Year: 2001, Page(s):106 - 109 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB) | HTML iconHTML

    A 3D textured polygonal facial model estimation algorithm is presented. The algorithm takes facial model estimation, texture mapping, and head pose estimation as complementary processes, which cooperate to adapt the facial model from a generic facial model to a user-accustomed one through image sequences. The proposed scheme is performed with a single camera without calibration and requires only a... View full abstract»

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  • A wavelet approach to double-sided document image pair processing

    Publication Year: 2001, Page(s):174 - 177 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    We present a novel method for processing double-sided historical handwritten documents using wavelets. The method is specially designed to remove interfering strokes from the reverse side due to ink seeping through pages after long periods of storage. The proposed method works by first matching both sides of a document page such that the interfering strokes are mapped with the originating strokes ... View full abstract»

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  • A system for reliable dissolve detection in videos

    Publication Year: 2001, Page(s):406 - 409 vol.3
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    Automatic shot boundary detection has been an active research area for nearly a decade and has led to high performance detection algorithms for hard cuts, fades and wipes. Reliable dissolve detection, however, is still an unsolved problem. We present the first robust and reliable dissolve detection system. A detection rate of 75% was achieved while reducing the false alarm rate to an acceptable le... View full abstract»

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  • Enhanced JPEG compression of documents

    Publication Year: 2001, Page(s):494 - 497 vol.3
    Cited by:  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB) | HTML iconHTML

    The JPEG standard was designed for compression of photographic digital images, but it also works well on digitized documents with only a limited number of shades of gray. For documents in which compression and legibility are more important than preserving all of the intermediate values, preprocessing the images to reduce their dynamic range can enhance JPEG compression, as it selectively discards ... View full abstract»

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  • Real time trinocular stereo for tele-immersion

    Publication Year: 2001, Page(s):959 - 962 vol.3
    Cited by:  Papers (12)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB) | HTML iconHTML

    Tele-immersion is a technology that augments your space with real-time 3D projections of remote spaces thus facilitating the interaction of people from different places in virtually the same environment. Tele-immersion combines 3D scene recovery from computer vision, and rendering and interaction from computer graphics. We describe the real-time 3D scene acquisition using a new algorithm for trino... View full abstract»

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  • 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»

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  • Integrating color and spatial features for content-based video retrieval

    Publication Year: 2001, Page(s):592 - 595 vol.3
    Cited by:  Papers (5)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB) | HTML iconHTML

    We present a novel scheme for content-based video retrieval by exploring the spatio-temporal information. A shot with significant content changes can be segmented into several subshots that are of coherent content, and a shot similarity measure for video retrieval can be computed from the similarity between corresponding subshots. To characterize the temporal content variations in one shot, we dev... View full abstract»

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  • An adaptive object-based reconstruction of intermediate views from stereoscopic images

    Publication Year: 2001, Page(s):923 - 926 vol.3
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    An intermediate view reconstruction is required in many applications. In this contribution, an adaptive object-based algorithm for intermediate view reconstruction of stereoscopic images is proposed. The disparity fields between the left-eye and the right-eye images are first estimated and then post-processed for recovering the disparity values in occluded areas. After that, the intermediate view ... View full abstract»

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