Proceedings. 2nd International Symposium on 3D Data Processing, Visualization and Transmission, 2004. 3DPVT 2004.

9-9 Sept. 2004

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  • Proceedings. 2nd International Symposium on 3D Data Processing, Visualization, and Transmission

    Publication Year: 2004
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  • 2nd International Symposium on 3D Data Processing, Visualization, and Transmission

    Publication Year: 2004, Page(s): i
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  • [Blank page]

    Publication Year: 2004, Page(s): ii
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  • 2nd International Symposium on 3D Data Processing, Visualization, and Transmission

    Publication Year: 2004, Page(s): iii
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  • Copyright page

    Publication Year: 2004, Page(s): iv
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  • Table of contents

    Publication Year: 2004, Page(s):v - xiv
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  • Foreword

    Publication Year: 2004, Page(s): xv
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  • Organization

    Publication Year: 2004, Page(s):xvi - xvii
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  • Program Committee

    Publication Year: 2004, Page(s): xviii
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  • Surface illuminance flow

    Publication Year: 2004, Page(s):2 - 9
    Cited by:  Papers (4)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (742 KB) | HTML iconHTML

    We introduce the concept of "surface illuminance flow" in two steps. First we reiterate the notion of the "light vector", and then proceed to decompose the light vector into a scalar "normal illuminance" and a vector "surface illuminance flow". The scalar normal illuminance generates the familiar illuminance pattern that is often known as the "shading". The vector surface illuminance flow is irrel... View full abstract»

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  • Helmholtz Stereopsis on rough and strongly textured surfaces

    Publication Year: 2004, Page(s):10 - 17
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1309 KB) | HTML iconHTML

    Helmholtz Stereopsis (HS) has recently been explored as a promising technique for capturing shape of objects with unknown reflectance. So far, it has been widely applied to objects of smooth geometry and piecewise uniform Bidirectional Reflectance Distribution Function (BRDF). Moreover, for nonconvex surfaces the inter-reflect ion effects have been completely neglected. We extend the method to sur... View full abstract»

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  • Surface normals and height from non-Lambertian image data

    Publication Year: 2004, Page(s):18 - 25
    Cited by:  Papers (5)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1040 KB) | HTML iconHTML

    It is well known that many surfaces exhibit reflectance that is not well modelled by Lambert's law. This is the case not only for surfaces that are rough or shiny, but also those that are matte and composed of materials that are particle suspensions. As a result, standard Lambertian shape-from-shading methods cannot be applied directly to the analysis of rough and shiny surfaces. In order to overc... View full abstract»

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  • A variational analysis of shape from specularities using sparse data

    Publication Year: 2004, Page(s):26 - 33
    Cited by:  Papers (15)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (484 KB) | HTML iconHTML

    Looking around in our every day environment, many of the encountered objects are specular to some degree. Actively using this fact when reconstructing objects from image sequences is the scope of the shape from specularities problem. One reason why this problem is important is that standard structure from motion techniques fail when the object surfaces are specular. Here this problem is addressed ... View full abstract»

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  • View dependence of 3D recovery from folded pictures and warped 3D faces

    Publication Year: 2004, Page(s):35 - 41
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (916 KB) | HTML iconHTML

    In a popular visual illusion, the portrait on paper currency is folded into an M shape along vertical lines through the nose and the eyes. When this folded picture is tilted back and forth horizontally the face undergoes striking changes in expression. This distortion reveals two insights concerning 3D representation in the human visual system and we have explored these with experiments on simple ... View full abstract»

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  • 3D performance capture for facial animation

    Publication Year: 2004, Page(s):42 - 49
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (956 KB) | HTML iconHTML

    This work describes how a photogrammetry based 3D capture system can be used as an input device for animation. The 3D Dynamic Capture System is used to capture the motion of a human face, which is extracted from a sequence of 3D models captured at TV frame rate. Initially the positions of a set of landmarks on the face are extracted. These landmarks are then used to provide motion data in two diff... View full abstract»

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  • Exploitation of 3D images for face authentication under pose and illumination variations

    Publication Year: 2004, Page(s):50 - 57
    Cited by:  Papers (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (854 KB) | HTML iconHTML

    An appearance-based face authentication system integrating 2D color or intensity images and 3D data is presented. The proposed system is based on a low-cost 3D and color sensor, capable of synchronous real-time acquisition of 3D images and associated color images. Novel algorithms are proposed that exploit depth information and prior knowledge of face geometry and symmetry to achieve robust face d... View full abstract»

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  • Speech-driven face synthesis from 3D video

    Publication Year: 2004, Page(s):58 - 65
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (618 KB) | HTML iconHTML

    We present a framework for speech-driven synthesis of real faces from a corpus of 3D video of a person speaking. Video-rate capture of dynamic 3D face shape and colour appearance provides the basis for a visual speech synthesis model. A displacement map representation combines face shape and colour into a 3D video. This representation is used to efficiently register and integrate shape and colour ... View full abstract»

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  • Geometry processing - a personal perspective

    Publication Year: 2004
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    Summary form only given. With the advent of large 3D datasets, generated mostly by 3D scanning devices, geometric mesh processing has become an important field within computer graphics and geometric modeling. In this article, the author describes on what has been accomplished in this field over the past decade, where the field stands today and where the author thinks it is going. The author's pers... View full abstract»

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  • Pyramid coordinates for morphing and deformation

    Publication Year: 2004, Page(s):68 - 75
    Cited by:  Papers (29)  |  Patents (3)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (795 KB) | HTML iconHTML

    Many model editing operations, such as morphing, blending, and shape deformation requires the ability to interactively transform the surface of a model in response to some control mechanism. For most computer graphics applications, it is important to preserve the local shape properties of input models during editing operations. We introduce the mesh editing technique that explicitly preserves loca... View full abstract»

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  • Linear shift-invariant operators for processing surface meshes

    Publication Year: 2004, Page(s):76 - 81
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (289 KB) | HTML iconHTML

    Shift-invariant operators for surface meshes are defined using geometric realizations of the mesh. Then, shift-invariance essentially means isotropy w.r.t. a distance metric. The particular case of the so-defined LSI operators with small support is analyzed in detail, showing a connection to mean value coordinates. The topological Laplacian operator turns out to be the LSI operator of the topologi... View full abstract»

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  • A formulation of boundary mesh segmentation

    Publication Year: 2004, Page(s):82 - 89
    Cited by:  Papers (31)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    We present a formulation of boundary mesh segmentation as an optimization problem. Previous segmentation solutions are classified according to the different segmentation goals, the optimization criteria and the various algorithmic techniques used. We identify two primarily distinct types of mesh segmentation, namely parts segmentation and patch segmentation. We also define generic algorithms for t... View full abstract»

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  • 3D image sensing for bit plane method of progressive transmission

    Publication Year: 2004, Page(s):91 - 94
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    Image compression has received a lot of interest over the years. Almost all the compression algorithms and standards, discussed in literature, gather statistics and compress on the complete image and compresses to suit various requirements such as lossy / lossless, baseline/ progressive, spatial, region on interest. Natural images such as gray scale images and color images are best compressed in t... View full abstract»

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  • 3D model retrieval based on 2D slice similarity measurements

    Publication Year: 2004, Page(s):95 - 101
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (577 KB) | HTML iconHTML

    We present an approach based on 2D slices for measuring similarity between 3D models. The key idea is to represent the 3D model by a series of slices along certain directions so that the shape-matching problem between 3D models is transformed into similarity measuring between 2D slices. Here, we have to deal with the following problems: selection of cutting directions, cutting methods, and similar... View full abstract»

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  • 3D model watermarking for indexing using the generalized Radon transform

    Publication Year: 2004, Page(s):102 - 109
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (447 KB) | HTML iconHTML

    The present paper proposes a novel method for 3D-model watermarking for indexing. The proposed approach is based on the use of a generalized Radon transformation. More specifically, the cylindrical integration transform (CIT) is initially applied to the 3D models in order to produce descriptor vectors. At the same time a watermarking technique, based on CIT is used in order to embed a specific mod... View full abstract»

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  • 3D modelling and visualization of the human lung

    Publication Year: 2004, Page(s):110 - 115
    Cited by:  Papers (4)  |  Patents (19)
    Request permission for reuse | Click to expandAbstract | PDF file iconPDF (1064 KB) | HTML iconHTML

    A method for modelling and visualizing human lungs using knowledge of lung anatomy and high resolution CT (HRCT) images is presented. The model consists of a symbolic description of lung anatomy and a 3D atlas. The 3D atlas is constructed using HRCT volume data. A few anatomical landmarks are determined and are used to divide the lungs into anatomically and diagnostically important regions. The la... View full abstract»

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