Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)

10-13 Sept. 2000

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  • Proceedings 2000 International Conference on Image Processing (Cat. No.00CH37101)

    Publication Year: 2000
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    Freely Available from IEEE
  • SPOT satellite data analysis for bathymetric mapping

    Publication Year: 2000, Page(s):464 - 467 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (439 KB)

    This paper presents the determination of bathymetric maps from the analysis of multispectral SPOT images. To this end, we have developed a multispectral segmentation method based on a hierarchical Markovian modeling including the unsupervised estimation of the model parameters. In each segmented region, an adaptive bathymetric inversion model is then applied in order to recover the water depth (ma... View full abstract»

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  • Copyright labeling of printed images

    Publication Year: 2000, Page(s):702 - 705 vol.3
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (369 KB)

    Digital watermarking is a labeling technique for digital images which embeds a code into the digital data so the data is marked. Watermarking techniques previously developed deal with on-line digital data and have been developed to withstand digital attacks such as image processing, compression and geometric transformations. We deal with printed images rather than on-line data. An important issue ... View full abstract»

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  • Author index

    Publication Year: 2000, Page(s):A_1 - A_18
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    Freely Available from IEEE
  • Reduction of blocking artifacts by adaptive DCT coefficient estimation in block-based video coding

    Publication Year: 2000, Page(s):969 - 972 vol.3
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (360 KB)

    We propose an adaptive post-processing method for reducing blocking artifacts in block-based video coding. This method is based on DCT coefficient estimation by quadratic programming method for each block. For the blocks including detected edges, we define an objective function on the basis of preservation of the edges and continuity of the pixel values at the block boundaries. For the other block... View full abstract»

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  • Hybrid sender and receiver driven rate control in multicast layered video transmission

    Publication Year: 2000, Page(s):532 - 535 vol.3
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (344 KB)

    Layered coding is often proposed as a solution for rate-based congestion control of video transmission in heterogeneous environments. The problem addressed more specifically here is the design of a responsive mechanism for rate allocation in each layer, that would guarantee the best bandwidth usage for all the receivers. One key features, in contrast with existing solutions, are an optimization of... View full abstract»

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  • Temporal segmentation of video using frame and histogram-space

    Publication Year: 2000, Page(s):941 - 944 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (404 KB)

    Two algorithms are presented for the detection of gradual transitions in video sequences. The first is a dissolve detection algorithm utilizing certain properties of a dissolve's trajectory in image-space. The second is an algorithm to detect a wide variety of wipes based on the image histogram characteristics during such transitions. Both algorithms operate in the compressed domain, requiring onl... View full abstract»

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  • Optimizing MPEG-4 coding performance by taking post-processing into account

    Publication Year: 2000, Page(s):965 - 968 vol.3
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (408 KB)

    In this paper, a block-based coding scheme is proposed. Unlike those schemes exploited in a conventional codec, the proposed scheme takes the post-processing scheme to be used in the decoder into account during encoding. An example is also provided in this paper to show how this coding scheme jointly optimizes the compression and the blocking-effect elimination when an MPEG-4 deblocking filter is ... View full abstract»

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  • A novel approach to scene change detection using a cross entropy

    Publication Year: 2000, Page(s):937 - 940 vol.3
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (304 KB)

    In huge video databases, an effective video indexing method is required. While manual indexing is the most effective approach to this goal, it is slow and expensive. Thus automatic indexing is desirable, and previously various indexing tools for video databases have been developed. For efficient video indexing and retrieval, the similarity measure is an important factor. This paper presents new si... View full abstract»

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  • Channel coding in video watermarking: use of soft decoding to improve the watermark retrieval

    Publication Year: 2000, Page(s):25 - 28 vol.3
    Cited by:  Papers (2)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (272 KB)

    Watermarking is often modeled as the transmission of a message over a very noisy channel. Indeed, the watermark power must be very low to ensure invisibility, and the modifications suffered by an image can be rather strong (JPEG or MPEG compression for instance), leading to a high noise level. To ensure a reliable transmission on a channel with such a low SNR, channel coding is thus mandatory. How... View full abstract»

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  • The adaptive-rest condition spring system: an edge-preserving regularization technique

    Publication Year: 2000, Page(s):805 - 808 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (312 KB)

    In the last decade, several authors have proposed edge preserving regularization (EPR) methods for solving ill posed problems in image processing and computer vision. These EPR techniques are based on the minimization of non-quadratic and in some cases non-convex energy functionals. We introduce a new EPR technique that corresponds to an adaptive-rest condition spring system, meaning that at those... View full abstract»

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  • Improved multi-image resolution enhancement for colour images captured by single-CCD cameras

    Publication Year: 2000, Page(s):484 - 487 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (680 KB)

    Most consumer cameras use a single CCD sensor and a colour filter array (CFA) to take colour pictures. The array samples the red, green, and blue colour planes on sparse sampling lattices that are not coincident and not necessarily orthogonal. The “raw” images are then interpolated and post-processed to prepare them for display. Existing multiframe enhancement methods use the post-proc... View full abstract»

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  • Improved fade and dissolve detection for reliable video segmentation

    Publication Year: 2000, Page(s):961 - 964 vol.3
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (352 KB)

    We present improved algorithms for automatic fade and dissolve detection in digital video analysis. We devise new two-step algorithms for fade and dissolve detection and introduce a method for eliminating false positives from a list of detected candidate transitions. In our detailed study of these gradual shot transitions, our objective has been to accurately classify the type of transitions (fade... View full abstract»

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  • A novel MPEG-4 based hybrid temporal-SNR scalability for Internet video

    Publication Year: 2000, Page(s):548 - 551 vol.3
    Cited by:  Papers (6)  |  Patents (17)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (432 KB)

    Transmission of video over bandwidth-varying networks (e.g. the Internet) requires a highly scalable solution that is capable of adapting to the network condition in real-time. To address this requirement, scalable video coding schemes with multiple enhancement-layers have been proposed. However, under this multiple-layer paradigm, the transmission bitrate of each layer has to be predetermined at ... View full abstract»

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  • A scene boundary detection method

    Publication Year: 2000, Page(s):933 - 936 vol.3
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (288 KB)

    A visual rhythm is a special 2D image reduced from a 3D video data in a way that the pixels along a vertical line of the visual rhythm are the pixels uniformly sampled along the diagonal line of a video frame. Using the distinct visual patterns to appear on the visual rhythm, we propose a video segmentation method to effectively detect both abrupt and gradual shot transitions. Specifically, the al... View full abstract»

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  • Video multicast over fair queueing networks

    Publication Year: 2000, Page(s):540 - 543 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (508 KB)

    We consider the problem of video multicast over networks that enforce fair bandwidth allocations in the routers. State-of-the-art layered IP multicast systems perform well for moderately sized sessions, but suffer from three basic problems that prevent their massive deployment: (a) lack of fairness among different multicast sessions, (b) lack of fairness to competing TCP flows, and (c) high comple... View full abstract»

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  • Backward tracking of B-pictures bidirectional motion for interframe concealment of anchor pictures

    Publication Year: 2000, Page(s):396 - 399 vol.3
    Cited by:  Papers (3)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (352 KB)

    A novel interframe error concealment technique is proposed for video packet losses in IP environments. The proposed technique benefits from the bidirectional motion parameters of bidirectionally predicted pictures `B-pictures' to conceal large portions (up to 100%) of corrupted anchor pictures. The lost anchor picture is interframe concealed by backward tracking its motion to its anchor picture th... View full abstract»

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  • Motion estimation with power scalability and its VHDL model

    Publication Year: 2000, Page(s):118 - 121 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (348 KB)

    In the MPEG standard, motion estimation (ME) is used to eliminate the temporal redundancy of video frames. This ME is the most time-consuming task in the encoding of video sequences and is also the one using the most power. Using low-bit images can save the power of ME and a conventional architecture fixed to a certain bit width is used for low-bit motion estimation. It is known that there is a tr... View full abstract»

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  • Generalized Wiener reconstruction of images from colour sensor data using a scale invariant prior

    Publication Year: 2000, Page(s):801 - 804 vol.3
    Cited by:  Papers (24)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (392 KB)

    An algorithm is described for reconstructing images from colour sensor samples, which need not be aligned nor conform to a rectangular sampling geometry. The algorithm has applications in de-mosaicing digital camera color filter array (CFA) data, and processing other imaging modalities such as scanned images and captured video. A unique scale invariant WSS prior model is described for the uncorrup... View full abstract»

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  • Comparison of two wavelet based image watermarking schemes

    Publication Year: 2000, Page(s):682 - 685 vol.3
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (360 KB)

    This paper presents two semi-blind watermarking techniques, based on sets of significant wavelet coefficients, in the three lowest detail subbands of a cover-image. The first method modifies the magnitude of triplets of significant coefficients, according to a sequence of information bits. We show that multiple marks can be embedded in an image. The second method considers rectangular blocks of co... View full abstract»

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  • Low complexity cut detection in the presence of flicker

    Publication Year: 2000, Page(s):957 - 960 vol.3
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (240 KB)

    This paper deals with techniques to detect abrupt scene transitions when random brightness variations (flicker) are present. This is normally the case when trying to restore or index old films. The application of conventional techniques in this situation tends to produce a large number of false positive detection of cuts. The paper is intently restricted to techniques which require low computation... View full abstract»

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  • Fuzzy representation and grouping in building detection

    Publication Year: 2000, Page(s):324 - 327 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (432 KB)

    We present a novel fuzzy approach for the task of detecting buildings in monocular greyscale imagery in the form of our system FuzzBuRS. Our approach rigorously addresses the problem of uncertainty and imprecision that exists within the building recognition scenario. Fuzzy variables are used for representing various types of building evidence, such as significant straight edges and homogeneous reg... View full abstract»

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  • Integrated compression and linear feature detection in the wavelet domain

    Publication Year: 2000, Page(s):889 - 892 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (336 KB)

    In many Earth observation missions, a large amount of data are collected by the on-board sensors, and must be transmitted to ground through a channel with limited capacity; in this case, besides lossy compression, one often has to select a subset of the original images for ground transmission. It is then desirable that the discarded images are those with a minor information content. In this paper ... View full abstract»

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  • Rate-constrained multi-hypothesis motion-compensated prediction for video coding

    Publication Year: 2000, Page(s):150 - 153 vol.3
    Cited by:  Papers (10)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (400 KB)

    Multi-hypothesis prediction extends motion compensation with one prediction signal to the linear superposition of several motion-compensated prediction signals with the result of increased coding efficiency. The multiple hypotheses in this paper are blocks in past decoded frames. These blocks are referenced by individual motion vectors and picture reference parameters incorporating long-term memor... View full abstract»

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  • Discovering recurrent visual semantics in consumer photographs

    Publication Year: 2000, Page(s):528 - 531 vol.3
    Cited by:  Papers (2)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (372 KB)

    We present techniques to semi-automatically discover recurrent visual semantics (RVS)-the repetitive appearance of visually similar elements such as objects and scenes-in consumer photographs. First, we introduce the detection of “bracketing” (very similar photographs) using an edge-correlation metric, which outperforms the color histogram. Then, we use color and novel composition feat... View full abstract»

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