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Applications of Computer Vision, 1996. WACV '96., Proceedings 3rd IEEE Workshop on

2-4 Dec. 1996

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  • Proceedings Third IEEE Applications Of Workshop On Computer Vision

    Publication Year: 1996, Page(s):iii - viii
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    Freely Available from IEEE
  • Handwritten Numeral Recognition Using Personal Handwriting Characteristics Based On Clustering Method

    Publication Year: 1996, Page(s):284 - 289
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (529 KB)

    First Page of the Article
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  • Author index

    Publication Year: 1996, Page(s):290 - 291
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    Freely Available from IEEE
  • Mosaicing of paintings on curved surfaces

    Publication Year: 1996, Page(s):44 - 49
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (980 KB)

    The paper presents an approach for reconstructing images painted on curved surfaces. A set of monocular images is taken from different viewpoints in order to mosaic and represent the entire scene. By using a priori knowledge about the support surface of the picture, we derive the surface localization in the camera coordinate system. An automatic mosaicing method is applied on the patterned images ... View full abstract»

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  • Real-time recognition of activity using temporal templates

    Publication Year: 1996, Page(s):39 - 42
    Cited by:  Papers (66)  |  Patents (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    A new view based approach to the representation and recognition of action is presented. The basis of the representation is a motion history image (MHI)-a static image where intensity is a function of the recency of motion in a sequence. We develop a recognition method which uses both binary and scalar valued versions of the MHI as temporal templates to match against stored instances of actions. Th... View full abstract»

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  • Histogram refinement for content-based image retrieval

    Publication Year: 1996, Page(s):96 - 102
    Cited by:  Papers (162)  |  Patents (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1572 KB)

    Color histograms are widely used for content-based image retrieval. Their advantages are efficiency, and insensitivity to small changes in camera viewpoint. However, a histogram is a coarse characterization of an image, and so images with very different appearances can have similar histograms. We describe a technique for comparing images called histogram refinement, which imposes additional constr... View full abstract»

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  • Cartographic indexing into a database of remotely sensed images

    Publication Year: 1996, Page(s):8 - 14
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    The paper aims to develop simple statistical methods for indexing line patterns. The application vehicle used in this study involves indexing into an aerial image database using a cartographic model. The images contained in the database are of urban and semi urban areas. The cartographic model represents a road network known to appear in a subset of the images contained within the database. There ... View full abstract»

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  • A real-time vision system for automatic traffic monitoring based on 2D spatio-temporal images

    Publication Year: 1996, Page(s):162 - 167
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The authors present a novel approach using 2D spatio-temporal images for automatic traffic monitoring. A TV camera is mounted above the highway to monitor the traffic through two slice windows for each traffic lane. One slice window is along the lane and the other perpendicular to the lane axis. Two types of 2D spatio-temporal (ST) images are used in the system: the panoramic view image (PVI) and ... View full abstract»

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  • Performance evaluation of people tracking systems

    Publication Year: 1996, Page(s):33 - 38
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    A tracking system outputs a separate motion trajectory for each moving object in a scene. The paper presents a problem of performance evaluation and performance metrics for real time systems that track people, or moving objects, in video sequences, and it proposes performance measurement methodology for such systems. Two approaches to measuring performance are presented. The first approach compare... View full abstract»

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  • Document layout structure extraction using bounding boxes of different entitles

    Publication Year: 1996, Page(s):278 - 283
    Cited by:  Papers (10)  |  Patents (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    The paper presents an efficient technique for document page layout structure extraction and classification by analyzing the spatial configuration of the bounding boxes of different entities on the given image. The algorithm segments an image into a list of homogeneous zones. The classification algorithm labels each zone as test, table, line-drawing, halftone, ruling, or noise. The text lines and w... View full abstract»

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  • Efficient image warping and super-resolution

    Publication Year: 1996, Page(s):56 - 61
    Cited by:  Papers (6)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    This paper introduces a new algorithm for enhancing image resolution from an image sequence. The approach we propose herein uses the integrating resampler proposed by M. Chiang and T. Boult (1996) as the underlying resampling algorithm. Moreover, it is a direct method, which is fundamentally different from the iterative, back-projection approaches proposed in previous work. We show that image warp... View full abstract»

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  • Automatic measurement of vertebral shape using active shape models

    Publication Year: 1996, Page(s):176 - 180
    Cited by:  Papers (12)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (732 KB)

    The authors describe how active shape models (ASMs) have been used to accurately and robustly locate vertebrae in lateral dual energy X-ray absorptiometry (DXA) images of the spine. DXA images are of low spatial resolution, and contain significant random and structural noise, providing a difficult challenge for object location methods. All vertebrae in the image were searched for simultaneously, i... View full abstract»

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  • Video indexing through integration of syntactic and semantic features

    Publication Year: 1996, Page(s):90 - 95
    Cited by:  Papers (18)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    This paper proposes a content-based video indexing system which provides the functionalities necessary for automatic management of video data through integration of syntactic and semantic features. The proposed system has been applied to detection, classification and then indexing of news programs collected from different TV channels. Although the paper focuses on news programs, the same methods c... View full abstract»

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  • Position estimation from outdoor visual landmarks for teleoperation of lunar rovers

    Publication Year: 1996, Page(s):156 - 161
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    The paper presents a new application of computer vision to space robotics: a teleoperation interface which analyzes images sent by a mobile robot in space missions and produces position estimates based an the images. The estimates are displayed to the robot operator as additional information to prevent loss of orientation. The current version of the interface detects mountain formations in images ... View full abstract»

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  • 3-D real-time gesture recognition using proximity spaces

    Publication Year: 1996, Page(s):136 - 141
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    A 3D segment tracking approach to recognition of human pose and gestures is presented. The author has previously developed and refined a stereo based method, called the proximity space method, for acquiring and maintaining the track of object surfaces in 3-space. This method uses LoG filtered images and relies solely on stereo measurement to spatially distinguish between objects in 3D. The objecti... View full abstract»

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  • Placing observers to cover a polyhedral terrain in polynomial time

    Publication Year: 1996, Page(s):77 - 82
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    The Art Gallery Problem is the problem of determining the number of observers necessary to cover an art gallery room such that every point is seen by at least one observer. This problem is well known and has a linear solution for the 2 dimensional case, but little is known in the 3-D case. In this paper we present a polynomial time solution for the 3-D version of the Art Gallery problem. Because t... View full abstract»

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  • VeggieVision: a produce recognition system

    Publication Year: 1996, Page(s):244 - 251
    Cited by:  Papers (14)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    The authors present an automatic product 1D system (“VeggieVision”), intended to ease the produce checkout process. The system consists of an integrated scale and imaging system with a user-friendly interface. When a produce item is placed on the scale, an image is taken. A variety of features, color, texture (shape, density), are then extracted. These features are compared to stored &... View full abstract»

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  • Nonparametric correction of distortion

    Publication Year: 1996, Page(s):214 - 219
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB)

    Images taken with wide angle and inexpensive medium angle lenses show substantial distortion, which will cause many computer vision applications to malfunction. Parametric calibration algorithms cannot handle the wide range of possible distortion functions and they require a known image center, expensive equipment, and/or estimation of unneeded parameters. We present a new algorithm to remove dist... View full abstract»

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  • An evolutive OCR system based on continuous learning

    Publication Year: 1996, Page(s):272 - 277
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    The paper presents an evolutive OCR system based on a cooperation between the recognition stage and the contextual stage which makes possible continuous training. The authors use the contextual correction in order to modify the behavior of the recognition stage by adjusting the internal representation of character models. They also introduce a specific classifier suitable for continuous training. ... View full abstract»

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  • Identifying nude pictures

    Publication Year: 1996, Page(s):103 - 108
    Cited by:  Papers (24)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    This paper demonstrates an automatic system for telling whether there are naked people present in an image. The approach combines color and texture properties to obtain a mask for skin regions, which is shown to be effective for a wide range of shades and colors of skin. These skin regions are then fed to a specialized grouper, which attempts to group a human figure using geometric constraints on ... View full abstract»

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  • Fast range image segmentation using high-level segmentation primitives

    Publication Year: 1996, Page(s):83 - 88
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    In this paper we present a novel algorithm for very fast segmentation of range images into both planar and curved surface patches. In contrast to other known segmentation methods our approach makes use of high-level features (curve segments) as segmentation primitives instead of individual pixels. This way the amount of data can be significantly reduced and a very fast segmentation algorithm is ob... View full abstract»

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  • Color and texture fusion: application to aerial image segmentation and GIS updating

    Publication Year: 1996, Page(s):2 - 7
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (944 KB)

    The paper describes an algorithm for combining color and texture information for the segmentation of color images. The algorithm uses maximum likelihood classification combined with a certainty based fusion criterion. The algorithm was validated using mosaics of real color textures. It was also tested on real outdoor color scenes and aerial images. This algorithm is part of a more complex system w... View full abstract»

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  • A real-time face tracker

    Publication Year: 1996, Page(s):142 - 147
    Cited by:  Papers (210)  |  Patents (67)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The authors present a real-time face tracker. The system has achieved a rate of 30+ frames/second using an HP-9000 workstation with a frame grabber and a Canon VC-Cl camera. It can track a person's face while the person moves freely (e.g., walks, jumps, sits down and stands up) in a room. Three types of models have been employed in developing the system. First, they present a stochastic model to c... View full abstract»

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  • A computer vision system to detect 3-D rectangular solids

    Publication Year: 1996, Page(s):27 - 32
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (580 KB)

    We present a computer vision system to detect 3D rectangular objects. We first describe the method to detect rectangular solids in real video/images in arbitrary orientations, positions, distances from the camera and lighting. The method works by detecting junctions and adjacent edges of rectangular solids. If a rough reference image of the background is available, that can also be used. We have t... View full abstract»

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  • Detecting suspicious background changes in video surveillance of busy scenes

    Publication Year: 1996, Page(s):22 - 26
    Cited by:  Papers (11)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    Detecting background changes in scenes containing significant numbers of moving objects has several applications in video surveillance. One important example is the detection of suspicious packages left in busy airport terminals or train stations. The paper outlines a statistical approach to automatically detecting long term changes to the stationary component of a scene, and describes a prototype... View full abstract»

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