Proceedings IEEE Workshop on Stereo and Multi-Baseline Vision (SMBV 2001)

9-10 Dec. 2001

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  • Proceedings IEEE Workshop on Stereo and Multi-Baseline Vision (SMBV 2001)

    Publication Year: 2001
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    Freely Available from IEEE
  • Author index

    Publication Year: 2001, Page(s): 175
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    Freely Available from IEEE
  • Trinocular stereo using shortest paths and the ordering constraint

    Publication Year: 2001, Page(s):3 - 9
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (539 KB) | HTML iconHTML

    This paper describes a new algorithm for disparity estimation using trinocular stereo. The three cameras are placed in a right angled configuration. A graph is then constructed whose nodes represent the individual pixels and whose edges are along the epipolar lines. Using the well known uniqueness and ordering constraint for pair by pair matches simultaneously, a path with the least matching cost ... View full abstract»

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  • Hierarchical stochastic diffusion for disparity estimation

    Publication Year: 2001, Page(s):111 - 120
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (433 KB) | HTML iconHTML

    This paper proposes a stochastic approach to estimate the disparity field combined with line field. In the maximum a posteriori (MAP) method based on Markov random field (MRF) model, it is important to optimize and converge the Gibbs potential function corresponding to the perturbed disparity field. The proposed optimization method, stochastic diffusion, takes advantage of the probabilistic distri... View full abstract»

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  • Multi-resolution stereo matching using genetic algorithm

    Publication Year: 2001, Page(s):21 - 29
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (814 KB) | HTML iconHTML

    In this paper, a new genetic-based stereo matching algorithm is presented. Our motivation is to improve the accuracy of the disparity map generated by removing the mismatches caused by both occlusions and false targets. In our approach, the stereo matching problem is considered as an optimization problem. The algorithm first takes advantage of multi-view stereo images to detect occlusions, therefo... View full abstract»

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  • Spatio-temporal stereo using multi-resolution subdivision surfaces

    Publication Year: 2001, Page(s):103 - 108
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (930 KB) | HTML iconHTML

    We present a method to automatically extract spatiotemporal descriptions of moving objects from synchronized and calibrated multi-view sequences. The object is modeled by a time-varying multi-resolution subdivision surface that is fitted to the image data using spatio-temporal multiview stereo information, as well as contour constraints. The stereo data is utilized by computing the normalized corr... View full abstract»

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  • Stereo with oblique cameras

    Publication Year: 2001, Page(s):85 - 91
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (369 KB) | HTML iconHTML

    Mosaics acquired by pushbroom cameras, stereo panoramas, omnivergent mosaics, and spherical mosaics can be viewed as images taken by non-central cameras, i.e. cameras that project along rays that do not all intersect at one point. It has been shown that in order to reduce the correspondence search in mosaics to a one-parametric search along curves, the rays of the non-central cameras have to lie i... View full abstract»

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  • Range-space approach for generalized multiple baseline stereo and direct virtual view synthesis

    Publication Year: 2001, Page(s):62 - 71
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (983 KB) | HTML iconHTML

    In this paper a new "range-space" approach, for rendering visual models using a network of multiple omnidirectional vision sensors (ODVS) is presented. This integrated approach allows for simultaneous extraction of 3-D range as well as visual models. The approach requires three distinct steps of analyzing multiple ODVS video input streams: 1) Search, 2) Match, and 3) Render. At the output, a user-... View full abstract»

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  • Rectangular subregioning and 3-D maximum-surface techniques for fast stereo matching

    Publication Year: 2001, Page(s):44 - 53
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (452 KB) | HTML iconHTML

    This paper presents a fast and reliable stereo matching algorithm which produces a dense disparity map by using fast cross correlation, rectangular subregioning and 3D maximum-surface techniques in a coarse-to-fine scheme. Fast correlation is achieved by using the box filtering technique whose speed is invariant to the size of correlation window and by segmenting the stereo images at different lev... View full abstract»

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  • A hierarchical stereo algorithm using dynamic programming

    Publication Year: 2001, Page(s):166 - 174
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (765 KB) | HTML iconHTML

    In this paper, a new hierarchical stereo algorithm is presented. The algorithm matches individual pixels in corresponding scanlines by minimizing a cost function. Several cost functions are compared. The algorithm achieves a tremendous gain in speed and memory requirements by implementing it hierarchically. The images are down sampled an optimal number of times and the disparity map of a lower lev... View full abstract»

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  • Trinocular stereo: a real-time algorithm and its evaluation

    Publication Year: 2001, Page(s):10 - 17
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (669 KB) | HTML iconHTML

    In telepresence applications each user is immersed in a rendered 3D-world composed from representations transmitted from remote sites. The challenge is to compute dense range data at high frame rates, since participants cannot easily communicate if the processing cycle or network latencies are long. Moreover errors in new stereoscopic views of the remote 3D-world should be hardly perceptible. To a... View full abstract»

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  • Using multiple-hypothesis disparity maps and image velocity for 3-D motion estimation

    Publication Year: 2001, Page(s):121 - 128
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (484 KB) | HTML iconHTML

    In this paper we explore a multiple hypothesis approach to estimating rigid motion from a moving stereo rig. More precisely, we introduce the use of Gaussian mixtures to model correspondence uncertainties for disparity and velocity (optical flow) estimation. We show some properties of the disparity space and show how rigid transformations can be represented. An algorithm derived from standard rand... View full abstract»

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  • Calculating dense disparity maps from color stereo images, an efficient implementation

    Publication Year: 2001, Page(s):30 - 36
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1467 KB) | HTML iconHTML

    This paper presents an efficient implementation for correlation based stereo. Research in this area can roughly be divided in two classes: improving accuracy regardless of computing time and scene reconstruction in real-time. Algorithms achieving video frame rates must have strong limitations in image size and disparity search range, whereas high quality results often need several minutes per imag... View full abstract»

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  • Combination of stereo, motion and rendering for 3D footage display

    Publication Year: 2001, Page(s):95 - 102
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    The emergence of a new generation of 3D auto stereoscopic displays is driving the requirement for multi-baseline images. The dominant form of this display technology requires multiple views of the same scene, captured at a single, instance in time along a common baseline in order to project stereoscopic images to the viewer. The direct acquisition of multiple views (typically 8 or 16 for the curre... View full abstract»

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  • Mosaic-based panoramic depth imaging with a single standard camera

    Publication Year: 2001, Page(s):75 - 84
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1350 KB) | HTML iconHTML

    In this article we present a panoramic depth imaging system. The system is mosaic-based which means that we use a single rotating camera and assemble the captured images in a mosaic. Due to a, setoff of the camera's optical center from the rotational center of the system we are able to capture the motion parallax effect which enables the stereo reconstruction. The camera is rotating on a circular ... View full abstract»

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  • Dense 3-D reconstruction of an outdoor scene, by hundreds-baseline stereo using a hand-held video camera

    Publication Year: 2001, Page(s):57 - 61
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (10117 KB) | HTML iconHTML

    Three-dimensional (3-D) models of outdoor scenes are widely used for object recognition, navigation, mixed reality, and so on. Because such models are often made manually with high costs, automatic and dense 3-D reconstruction is widely investigated. In related work, a dense 3-D model is generated by using a stereo method. However these methods cannot use several hundreds images together for dense... View full abstract»

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  • A taxonomy and evaluation of dense two-frame stereo correspondence algorithms

    Publication Year: 2001, Page(s):131 - 140
    Cited by:  Papers (190)  |  Patents (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB) | HTML iconHTML

    Stereo matching is one of the most active research areas in computer vision. While a large number of algorithms for stereo correspondence have been developed, relatively little work has been done on characterizing their performance. In this paper, we present a taxonomy of dense, two-frame stereo methods designed to assess the different components and design decisions made in individual stereo algo... View full abstract»

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  • Range segmentation using visibility constraints

    Publication Year: 2001, Page(s):37 - 43
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1625 KB) | HTML iconHTML

    Visibility constraints can aid the segmentation of foreground objects observed with multiple range images. In our approach, points are defined as foreground if they can be determined to occlude some empty space in the scene. We present an efficient algorithm to estimate foreground points in each range view using explicit epipolar search. In cases where the background pattern is stationary, we show... View full abstract»

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  • Improvements in real-time correlation-based stereo vision

    Publication Year: 2001, Page(s):141 - 148
    Cited by:  Papers (57)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (581 KB) | HTML iconHTML

    A stereo vision system that is required to support high-level object based tasks in a tele-operated environment is described. Stereo vision is computationally expensive, due to having to find corresponding pixels. Correlation is a fast, standard way to solve the correspondence problem. This paper analyses the behaviour of correlation based stereo to find ways to improve its quality while maintaini... View full abstract»

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  • Semi-dense stereo correspondence with dense features

    Publication Year: 2001, Page(s):149 - 157
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1714 KB) | HTML iconHTML

    We present a new feature based algorithm for stereo correspondence. Most of the previous feature based methods match sparse features like edge pixels, producing only sparse disparity maps. Our algorithm detects and matches dense features between the left and right images of a stereo pair, producing a semi-dense disparity map. Our dense feature is defined with respect to both images of a stereo pai... View full abstract»

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  • A simple stereo algorithm to recover precise object boundaries and smooth surfaces

    Publication Year: 2001, Page(s):158 - 165
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1426 KB) | HTML iconHTML

    In area-based stereo matching, there is a problem called "boundary overreach", i.e. the recovered object boundary turns out to be wrongly located away from the real one. This is especially harmful to segmenting objects using depth information. A few approaches have been proposed to solve this problem. However, these techniques tend to degrade on smooth surfaces. That is, there seems to be a trade-... View full abstract»

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