Proceedings. International Conference on Image Processing

22-25 Sept. 2002

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  • Proceedings 2002 International Conference on Image Processing (Cat. No.02CH37396)

    Publication Year: 2002
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    Freely Available from IEEE
  • Video quality measures based on the standard spatial observer

    Publication Year: 2002, Page(s): III
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (242 KB) | HTML iconHTML

    Video quality metrics are intended to replace human evaluation with evaluation by machine. To accurately simulate human judgement, they must include some aspects of the human visual system. In this paper we present a class of low-complexity video quality metrics based on the standard spatial observer (SSO). In these metrics, the basic SSO model is improved with several additional features from the... View full abstract»

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  • Model based rotation-invariant texture classification

    Publication Year: 2002, Page(s): III
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB) | HTML iconHTML

    In this paper a model based texture classification procedure robust to sample rotation is presented. The texture is modeled as the output of a linear system driven by a binary image. This latter retains the morphological characteristics of the texture and it is specified by its spatial autocorrelation function (ACF). We show that features extracted from the ACF of the binary excitation suffice to ... View full abstract»

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  • Shared-boundary fusion for estimation of noisy multi-modality atherosclerotic plaque imagery

    Publication Year: 2002, Page(s): III
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (275 KB) | HTML iconHTML

    Our work focuses on applying boundary-preserving smoothing techniques to the fusion of multiple image modalities in an effort to improve image-based classification of atherosclerotic lesions. No single imaging modality has yet demonstrated the ability to reliably detect "vulnerable" lesions. We present an approach for estimating multi-modality biomedical imagery when tissue classes are sharply del... View full abstract»

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  • Detection of objects carried by people

    Publication Year: 2002, Page(s): III
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB) | HTML iconHTML

    Our application context is the visual surveillance of archeological sites. In this context the main aim is to detect the presence of people and to scan them in order to recognize intruders on the basis of their gestures. Since an intruder needs some utensils indispensable to perform the illegal actions of excavating on the ancient ruins, intruder detection involves first of all to ascertain if a p... View full abstract»

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  • Reconstruction of irregularly-sampled images by regularization in spline spaces

    Publication Year: 2002, Page(s): III
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (414 KB) | HTML iconHTML

    We are concerned with the reconstruction of a regularly-sampled image based on irregularly-spaced samples thereof. We propose a new iterative method based on a cubic spline representation of the image. An objective function taking into account the similarity to the known samples and the regularity of the function is minimized in order to obtain a good approximation. We apply the developed algorith... View full abstract»

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  • Smart cameras with real-time video object generation

    Publication Year: 2002, Page(s): III
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (316 KB) | HTML iconHTML

    The paper presents a system for video object generation and selective encoding with applications in surveillance, mobile videophones, and the automotive industry. Object tracking and MPEG-4 compression are performed in real-time. The system belongs to a new generation of intelligent vision sensors called smart cameras, which execute autonomous vision tasks and report events and data to a remote ba... View full abstract»

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  • Robust tracking of humans and vehicles in cluttered scenes with occlusions

    Publication Year: 2002, Page(s):629 - 632 vol.3
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (314 KB) | HTML iconHTML

    An algorithm for tracking multiple non-rigid objects in cluttered scenes is presented. The proposed approach models the shape of the objects by using corners. In particular, a learning algorithm is introduced in order to extract an adaptive model of the object automatically. The obtained adaptive model is used to individuate the object position and scale when occlusions are present. The method is ... View full abstract»

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  • Dynamic wavelet feature-based watermarking for copyright tracking in digital movie distribution systems

    Publication Year: 2002, Page(s):653 - 656 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (304 KB) | HTML iconHTML

    We propose novel watermark embedding and detection methods to address the problem of copyright tracking of movies distributed to theaters by satellites. Temporal and spatial wavelet transformation as well as feature-based watermark embedding procedures are deployed such that the proposed watermarking algorithm is able to affect a compromise tradeoff between the visual quality and the robustness. T... View full abstract»

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  • Highly scalable video compression using a lifting-based 3D wavelet transform with deformable mesh motion compensation

    Publication Year: 2002, Page(s):749 - 752 vol.3
    Cited by:  Papers (35)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (324 KB) | HTML iconHTML

    This paper continues the development of a new framework for the construction of motion-compensated wavelet transforms for highly scalable video compression. The current authors recently proposed a motion adaptive wavelet transform based on motion-compensated lifting steps. This approach overcomes several limitations of existing methods. In particular, frame warping and block displacement methods c... View full abstract»

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  • Detecting cortical activities from fMRI data using the STAP algorithm

    Publication Year: 2002, Page(s):1001 - 1004 vol.3
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (262 KB) | HTML iconHTML

    Space-time adaptive processing (STAP), previously developed in the field of sensor array processing and applied to radar signal processing, is adapted here for use in the construction of brain activation maps in functional magnetic resonance imaging (fMRI). Because STAP processes space-time data as a single spatiotemporal set, it offers potential advantage over currently available methods in provi... View full abstract»

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  • Author index

    Publication Year: 2002, Page(s):A_1 - A_14
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    Freely Available from IEEE
  • Detection and location of people in video streams by fusion of color, edge and motion information

    Publication Year: 2002, Page(s):III-449 - III-452 vol.3
    Cited by:  Papers (1)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB) | HTML iconHTML

    The MPEG-4 standard consists of object based coding schemes for multimedia and enables content-based manipulation. An approach based on information fusion, which can be used for the detection and location of video objects (people) is proposed in this paper. The method efficiently integrates color, edge and motion information of video streams. The HSV space provides a better use of the color inform... View full abstract»

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  • A camera-based system for early detection of drowning incidents

    Publication Year: 2002, Page(s):III-445 - III-448 vol.3
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (399 KB) | HTML iconHTML

    We present in this paper a camera-based system for detecting drowning incidents in a swimming pool at the earliest possible stage. The system consists of two main parts: a vision component which can reliably detect and track swimmers in spite of large scene variations of monitored pool areas, and an event-inference module which parses observation sequences of swimmer features for possible drowning... View full abstract»

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  • Nonlinear binary wavelet transforms and their application to binary image compression

    Publication Year: 2002, Page(s):593 - 596 vol.3
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB) | HTML iconHTML

    Most research on wavelet transforms of binary signals and images has been concentrated on linear transforms. This paper proposes a binary wavelet transform scheme that does not depend on the field structure of binary numbers and includes nonlinear transforms. As a result, the number of binary wavelet transforms increases drastically. It is demonstrated that the increased freedom in choosing a part... View full abstract»

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  • Real-time objects tracking by using smart image sensor and FPGA

    Publication Year: 2002, Page(s):III-441 - III-444 vol.3
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (287 KB) | HTML iconHTML

    We have been investigating the integration of sensing and compression on an image sensor. The compression sensor reduces the number of pixels in the image signal that have to be readout from the sensor. We present a real-time object tracking system using a compression sensor, which has 128×128 pixels, and FPGA. By using this system, several moving objects can be extracted and tracked indepen... View full abstract»

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  • Merged-color histogram for color image retrieval

    Publication Year: 2002, Page(s):949 - 952 vol.3
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (351 KB) | HTML iconHTML

    Conventional histogram-based image retrieval algorithms usually find only intersecting areas of the color-component distributions of images, and thus work well in matching images with exact colors instead of similar colors, especially for computer generated pictures. This could be greatly affected by overall variations, such as intensity changes. A novel merged-color histogram (MCH) method for col... View full abstract»

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  • Independent filters for texture classification

    Publication Year: 2002, Page(s):III-113 - III-116 vol.3
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (409 KB) | HTML iconHTML

    In this paper we propose a framework for texture classification through filtering. Given a set of textures, the filters are derived as the independent components of the input images and each texture is then characterized by the marginal distributions of its filter responses. The marginal distributions provide a low-dimensional representation of images and result in a significant dimension reductio... View full abstract»

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  • A new direction adaptive scheme for image interpolation

    Publication Year: 2002, Page(s):III-369 - III-372 vol.3
    Cited by:  Papers (21)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    We present a novel image interpolation method based on variational models with both smoothing and orientation constraints. By introducing the orientation constraint, we simplify the nonlinear PDE problem into a series of problems with explicit solutions. In our model, the gradient directions for the interpolated pixels are first estimated using a modified orientation diffusion method. Using these ... View full abstract»

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  • Directional wavelet transforms and frames

    Publication Year: 2002, Page(s):589 - 592 vol.3
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (349 KB) | HTML iconHTML

    The application of the wavelet transform in image processing is most frequently based on a separable transform. Lines and columns in an image are treated independently and the basis functions are simply products of corresponding one-dimensional functions. Such a method keeps simplicity in design and computation. A new two-dimensional approach is proposed, which retains the simplicity of separable ... View full abstract»

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  • Robust real-time intrusion detection with fuzzy classification

    Publication Year: 2002, Page(s):III-437 - III-440 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (335 KB) | HTML iconHTML

    We propose a novel system for indoor video surveillance. It is able to detect and track moving objects even in the presence of significant variations of scene illumination. After a preliminary analysis and clustering of temporal changes in the video sequence, the algorithm performs a classification based on fuzzy logic, aimed at identifying moving regions that really correspond to unexpected objec... View full abstract»

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  • Straightening warped text lines using polynomial regression

    Publication Year: 2002, Page(s):977 - 980 vol.3
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (325 KB) | HTML iconHTML

    Perspective distortion always occurs while scanning thick, bound documents, resulting in two problems in the scanned grayscale image: (i) shadow along the 'spine' of the book; (ii) warping of words in the shadow area. In our previous paper, we proposed a restoration system to solve these two problems (see Zheng Zhang and Chew Lim Tan, Int. Conf. on Image Proc., p.1074-7, 2001). However the shape o... View full abstract»

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  • Robust corner tracking for multimedia applications

    Publication Year: 2002, Page(s):945 - 948 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (423 KB) | HTML iconHTML

    The paper addresses the problem of corner tracking for multimedia applications in the presence of occlusion. To extract corners from each frame of a video sequence, multi-scale enhanced CSS (curvature scale space) corner detection is applied. In the matching stage, two-frame correspondence using multiple match hypotheses is considered. Due to occlusion, not only the corners of the first frame, but... View full abstract»

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  • Fusion of radiometry and textural information for SIR-C image classification

    Publication Year: 2002, Page(s):III-109 - III-112 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (366 KB) | HTML iconHTML

    We consider the problem of multi-channel image classification. We take into account not only the radiometric information but also some textural information. The proposed algorithm is a particular case of a fission-fusion scheme. The fission step consists of defining some textural parameters and extracting them from the different channels. The fusion between the texture channels and the original ra... View full abstract»

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  • Optimal detector structure for DCT and subband domain watermarking

    Publication Year: 2002, Page(s):III-465 - III-468 vol.3
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (362 KB) | HTML iconHTML

    Most of the watermarking schemes that have been proposed until now employ a correlator in the detection stage. The current paper proposes a new detector scheme that can be applied in the case of additive watermarking in the DCT or DWT domain. Certain properties of the probability density function of the coefficients in these domains are exploited in order to construct an asymptotically optimal det... View full abstract»

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