Fourth International Conference on 3-D Digital Imaging and Modeling, 2003. 3DIM 2003. Proceedings.

6-10 Oct. 2003

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Displaying Results 1 - 25 of 63
  • Reliable and rapidly-converging ICP algorithm using multiresolution smoothing

    Publication Year: 2003, Page(s):171 - 178
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (886 KB) | HTML iconHTML

    Autonomous range acquisition for 3D modeling requires reliable range registration, for both the precise localization of the sensor and combining the data from multiple scans for view-planning computation. We introduce and present a novel approach to improve the reliability and robustness of the ICP (iterative closest point) 3D shape registration algorithm by smoothing the shape's surface into mult... View full abstract»

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  • Using k-d trees for robust 3D point pattern matching

    Publication Year: 2003, Page(s):95 - 102
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (333 KB) | HTML iconHTML

    We propose a new method for matching two 3D point sets of identical cardinality with global similarity but locally nonrigid distribution. This problem arises from marker-based optical motion capture systems. The point-sets are extracted from similar design poses of two subjects with underlying nonrigidity and possible distribution discrepancies, one being a model set (manually identified) and the ... View full abstract»

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  • A point-and-shoot color 3D camera

    Publication Year: 2003, Page(s):483 - 490
    Cited by:  Papers (5)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (953 KB) | HTML iconHTML

    Recently, various technologies have become available for scanning real-world objects, enabling rapid and accurate shape acquisition. In most cases, such solutions have high cost, lack portability and require a considerable amount of user intervention. We present a lightweight, point-and-shoot 3D camera, intended for reconstruction of smooth surfaces. Our approach extracts 3D shape from a single im... View full abstract»

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  • Human figure reconstruction and modeling from single image or monocular video sequence

    Publication Year: 2003, Page(s):116 - 123
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1576 KB) | HTML iconHTML

    We firstly review some approaches to recover the 3D shape of human figures and the related movements. Then we present an improved and reliable version of an easy approach to recover 3D model of humans using just one frame or a monocular video sequence. A simplification of the camera model based on the collinearity condition is required, due to the absence of stereo view. This leads to a perspectiv... View full abstract»

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  • Image-based techniques for digitizing environments and artifacts

    Publication Year: 2003, Page(s):234 - 241
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1061 KB) | HTML iconHTML

    We present an overview of techniques for generating photoreal computer graphics models of real-world places and objects. Our group's early efforts in modeling scenes involved the development of Faqade, an interactive photogrammetric modeling system that uses geometric primitives to model the scene, and projective texture mapping to produce the scene appearance properties. Subsequent work has produ... View full abstract»

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  • Human identification from body shape

    Publication Year: 2003, Page(s):386 - 392
    Cited by:  Papers (7)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (438 KB) | HTML iconHTML

    We investigate the utility of static anthropometric distances as a biometric for human identification. The 3D landmark data from the CAESAR database is used to form a simple biometric consisting of distances between fixed rigidly connected body locations. This biometric is overt, and invariant to view and body posture. We use this to quantify the asymmetry of human bodies, and to characterize the ... View full abstract»

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  • Free-form surface reconstruction from multiple images

    Publication Year: 2003, Page(s):163 - 174
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (994 KB) | HTML iconHTML

    It is widely appreciated that 3D structures may be computed from multiple 2D images of the same scene given point correspondences between images. Of greater interest, however, is the generation of surfaces that give a compact representation of the geometric model. Assuming we are dealing with smooth surfaces, we show that B-spline is a good choice for this purpose and we describe how to construct ... View full abstract»

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  • The ModelCamera: a hand-held device for interactive modeling

    Publication Year: 2003, Page(s):285 - 292
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1611 KB) | HTML iconHTML

    An important goal of automated modeling is to provide computer graphics applications with high quality models of complex real-world scenes. Prior systems have one or more of the following disadvantages: slow modeling pipeline, applicability restricted to small scenes, no direct color acquisition, and high cost. We describe a hand-held scene modeling device that operates at five frames per second a... View full abstract»

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  • Active balloon model based on 3D skeleton extraction by competitive learning

    Publication Year: 2003, Page(s):87 - 94
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (510 KB) | HTML iconHTML

    We focus on the polygonal representation of a 3D object model which is composed of a lot of points on the object surface. In the 3D animation, it is sometimes necessary to use multiresolution representation of a model to cope with various situations, and it is preferable to represent the models with different resolutions in a certain unified data structure. In order to meet these requirements, we ... View full abstract»

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  • Silhouette and stereo fusion for 3D object modeling

    Publication Year: 2003, Page(s):46 - 53
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1140 KB) | HTML iconHTML

    We present a new approach to high quality 3D object reconstruction. Starting from a calibrated sequence of color images, the algorithm is able to reconstruct both the 3D geometry and the texture. The core of the method is based on a deformable model, which defines the framework where texture and silhouette information can be fused. This is achieved by defining two external forces based on the imag... View full abstract»

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  • Anisotropic diffusion of surface normals for feature preserving surface reconstruction

    Publication Year: 2003, Page(s):353 - 360
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1042 KB) | HTML iconHTML

    For 3D surface reconstruction problems with noisy and incomplete range data measured from complex scenes with arbitrary topologies, a low-level representation, such as level set surfaces, is used. Such surface reconstruction is typically accomplished by minimizing a weighted sum of datamodel discrepancy and model smoothness terms. We introduce a new nonlinear model smoothness term for surface reco... View full abstract»

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  • 3D optical scanning diagnostics for Leonardo Da Vinci's "Adorazione dei Magi" conservation

    Publication Year: 2003, Page(s):110 - 115
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3115 KB) | HTML iconHTML

    Optical scanning has been applied to generate a complete 3D model of the famous "Adorazione dei Magi" by Leonardo Da Vinci in order to obtain a high quality three-dimensional (3D) digital representation. The main goal was to highlight and measure a map of deviations from planarity due to the curving and warping of the wood for documenting spatial deformation suffered by the painting and monitoring... View full abstract»

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  • Automatic 3D modelling of palatal plaster casts

    Publication Year: 2003, Page(s):132 - 138
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (999 KB) | HTML iconHTML

    We introduce a procedure for automatic 3D modelling and discusses its performance in the context of a medical application, namely the 3D modelling of palate's casts. The general interest of the proposed method lays in the fact that a widespread use of 3D modelling in nonengineering applications requires automatic procedures. The specific interest is in the intriguing mixture of open issues concern... View full abstract»

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  • Recursive model optimization using ICP and free moving 3D data acquisition

    Publication Year: 2003, Page(s):251 - 258
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (817 KB) | HTML iconHTML

    We describe a recursive multiresolution algorithm that reconstructs high-resolution and high-accuracy 3D images from low-resolution sparse range images or profiles. The method starts by creating a rough, partial, and potentially distorted estimate of the model of the object from an initial subset of sparse range data; then, using ICP algorithms, it recursively improves and refines the model by add... View full abstract»

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  • Efficient reconstruction of indoor scenes with color

    Publication Year: 2003, Page(s):402 - 409
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1777 KB) | HTML iconHTML

    We present an efficient and general approach to computing and integrating 3D distance fields directly from multiple range images. We compute normal and confidence values directly from a 2D range image. We then approximate 3D Euclidean distance by correcting the line-of-sight distance. To integrate multiple scans, we efficiently transform voxels of the target distance field to each scan's local coo... View full abstract»

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  • Calibration of a zooming camera using the normalized image of the absolute conic

    Publication Year: 2003, Page(s):225 - 232
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (618 KB) | HTML iconHTML

    We present a novel technique for calibrating a zooming camera based on the invariance properties of the normalized image of the absolute conic (NIAC). First, we show that the camera parameters (independent of the position, orientation and zooming) are determined uniquely by the NIAC. Then, we exploit the invariance properties to develop a stratified calibration method that decouples the calibratio... View full abstract»

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  • 3D head pose estimation with optical flow and depth constraints

    Publication Year: 2003, Page(s):211 - 216
    Cited by:  Papers (6)  |  Patents (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB) | HTML iconHTML

    A method is presented to estimate 3D head poses effectively by hybrid sensing of depth and gray information. Depth information is used to generate clean head segmentation even in a cluttered scene. Based on the segmentation result, sparse optical flow at head region is extracted and used for 3D head motion estimation in video rate. This method is shown to be effective through experiments on video ... View full abstract»

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  • Parallel alignment of a large number of range images

    Publication Year: 2003, Page(s):195 - 202
    Cited by:  Papers (9)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1722 KB) | HTML iconHTML

    We describe a method for parallel alignment of multiple range images. It is difficult to align a large number of range images simultaneously. Therefore, we developed the parallel method to improve the time and memory performances of the alignment process. Although a general simultaneous alignment algorithm searches correspondences for all pairs of all range images by rejecting redundant dependenci... View full abstract»

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  • A discrete Reeb graph approach for the segmentation of human body scans

    Publication Year: 2003, Page(s):378 - 385
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1193 KB) | HTML iconHTML

    Segmentation of 3D human body (HB) scan is a very challenging problem in applications exploiting human scan data. To tackle this problem, we propose a topological approach based on discrete Reeb graph (DRG) which is an extension of the classical Reeb graph to unorganized cloud of 3D points. The essence of the approach is detecting critical nodes in the DRG thus permitting the extraction of branche... View full abstract»

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  • 3-D motion and shape from multiple image sequences

    Publication Year: 2003, Page(s):155 - 162
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1204 KB) | HTML iconHTML

    We propose a method for determining the accurate local 3-D motion and shape of objects in image sequences from multiple views. The shape of the considered object is calculated at each time step using image sequences, synchronously acquired by two or more calibrated cameras. Starting from an initial shape model of the object a stepwise refinement process is performed in which the model is adapted t... View full abstract»

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  • A fast point-to-tangent plane technique for multi-view registration

    Publication Year: 2003, Page(s):276 - 283
    Cited by:  Papers (3)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB) | HTML iconHTML

    We address a registration refinement problem and presents an accurate and fast point-to-(tangent) plane technique. Point-to-plane approach is known to be very accurate for registration refinement of partial 3D surfaces. However, the computation complexity for finding the intersection point on a destination surface from a source control point is hindering the algorithm from real-time applications. ... View full abstract»

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  • Effective nearest neighbor search for aligning and merging range images

    Publication Year: 2003, Page(s):54 - 61
    Cited by:  Papers (4)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1582 KB) | HTML iconHTML

    We describe a novel method, which extends the search algorithm of a k-d tree for aligning and merging range images. If the nearest neighbor point is far from a query, many of the leaf nodes must be examined during the search, which actually will not finish in logarithmic time. However, such a distant point is not as important as the nearest neighbor in many applications, such as aligning and mergi... View full abstract»

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  • A hierarchical method for aligning warped meshes

    Publication Year: 2003, Page(s):434 - 441
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1211 KB) | HTML iconHTML

    Current alignment algorithms for registering range data captured from a 3D scanner assume that the range data depicts identical geometry taken from different views. However, in the presence of scanner calibration errors, the data will be slightly warped. These warps often cause current alignment algorithms to converge slowly, find the wrong alignment, or even diverge. We present a method for align... View full abstract»

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  • Streaming transmission of point-sampled geometry based on view-dependent level-of-detail

    Publication Year: 2003, Page(s):466 - 473
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (975 KB) | HTML iconHTML

    Streaming transmission of 3D data sets is a key technology for remote rendering and visualization of huge geometrical models or complex scenes. We propose an efficient point-based progressive transmission method with gaze-guided control of the level-of-detail (LOD) of the data samples. The efficiency results from a multiresolution simplification scheme based on hierarchical clustering and a compac... View full abstract»

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  • Accuracy of 3D range scanners by measurement of the slanted edge modulation transfer function

    Publication Year: 2003, Page(s):37 - 44
    Cited by:  Papers (3)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (421 KB) | HTML iconHTML

    We estimate the accuracy of a 3D range scanner in terms of its spatial frequency response. We determine a scanner's modulation transfer function (MTF) in order to measure its frequency response. A slanted edge is scanned from which we derive a superresolution edge profile. Its Fourier transform is compared to the Fourier transform of an ideal edge in order to determine the MTF of the device. This ... View full abstract»

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