Proceedings. Fourteenth International Conference on Pattern Recognition (Cat. No.98EX170)

20-20 Aug. 1998

Go

Filter Results

Displaying Results 1 - 25 of 252
  • Proceedings Fourteenth International Conference On Pattern Recognition [front matter]

    Publication Year: 1998, Page(s):i - xxxvi
    Request permission for commercial reuse | PDF file iconPDF (1859 KB)
    Freely Available from IEEE
  • Author index

    Publication Year: 1998, Page(s):xxxvii - xlvii
    Request permission for commercial reuse | PDF file iconPDF (774 KB)
    Freely Available from IEEE
  • Smart rooms, smart clothes

    Publication Year: 1998, Page(s):949 - 953 vol.2
    Cited by:  Papers (21)  |  Patents (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (419 KB)

    To change inanimate objects like offices, houses, cars, or glasses into smart, active helpmates they need to have perceptual intelligence. They need to begin paying attention to people and the surrounding situation the way another person would. That way they can begin to adapt their behavior to us, rather than the other way around. We have developed computer systems that can follow people's action... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-resolution surface description of 3D objects by shape-adaptive triangular meshes

    Publication Year: 1998, Page(s):954 - 958 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (318 KB)

    Automatic 3D object modeling is a problem to be solved for many vision applications. In this paper, we propose a method of constructing a B-rep model of a 3D object from multi-view range images by utilizing a dynamic balloon scheme. The model is represented with triangular meshes, and by dynamic subdivision of the triangles, the meshes can approximate the local shapes adaptively. Moreover, it is a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A factorization method using 3D linear combination for shape and motion recovery

    Publication Year: 1998, Page(s):959 - 963 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    This study proposes a new factorization method for shape and motion recovery. In the past, the fourth greatest singular value of the measurement matrix was ignored. But when noise is large enough so that the fourth greatest singular value can not be ignored, it would be difficult to get reliable results by using the traditional factorization method. In order to acquire reliable results, We start w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Regularization-based 3D object modeling from multiple range images

    Publication Year: 1998, Page(s):964 - 968 vol.2
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (871 KB)

    Several methods have been proposed for building 3D object models from multiple range images mainly on the basis of the deformable models and pseudo-dynamics. However, the patches are usually placed crossing over the edge regions, and the surface orientation discontinuities cannot be properly preserved as a result. This paper proposes a new 3D object modeling method that generates refined triangula... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust range segmentation

    Publication Year: 1998, Page(s):969 - 971 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (594 KB)

    This paper proposes a robust estimator which is capable of segmenting multi-structural data. The proposed estimation technique is used to segment range data into linear (planar) and quadratic surfaces. The performance of the proposed range segmentation algorithm is tested on a number of real data sets. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Uncertainty in pose estimation: a Bayesian approach

    Publication Year: 1998, Page(s):972 - 976 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (135 KB)

    We propose a the use of a consistent Bayesian methodology for the analysis of the uncertainty associated with a pose estimation procedure. A novel model-based technique to estimate the pose of rigid 3D objects from laser range finder images is studied, and various sources of uncertainty are carried through the process using a Bayesian MAP treatment, yielding local, point-by-point estimates of posi... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A unified approach to volumetric registration and integration of multiple range images

    Publication Year: 1998, Page(s):977 - 981 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (299 KB)

    Registration and integration of measured shape data of real objects are important for 3D modeling for computer graphics and computer-aided design. We propose a new algorithm that solves registration and integration of multiple range images in a unified framework. The closest point of an object from a general 3D point can be determined uniquely. If we have range images of an object and the images a... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Multi-feature matching algorithm for free-form 3D surface registration

    Publication Year: 1998, Page(s):982 - 984 vol.2
    Cited by:  Papers (14)  |  Patents (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (122 KB)

    Applications such as object digitizing, object recognition and object inspection need efficient surface matching algorithms. Several variants of an iterative closest point (ICP) matching algorithm have been proposed for such tasks. This paper proposes and analyzes a multi-feature ICP matching algorithm that includes the surface color and the surface orientation information. The matching error mini... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fast segmentation of planar surfaces in range images

    Publication Year: 1998, Page(s):985 - 987 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (80 KB)

    A new algorithm for planar face segmentation in range images is introduced. The segmentation is based on a combination of recursive adaptive regression model prediction for detecting range image step discontinuities which are present at object face borders and of a region growing on surface lines. Border pixels are detected in two perpendicular directions and detection results are combined togethe... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive local thresholding with fuzzy-validity-guided spatial partitioning

    Publication Year: 1998, Page(s):988 - 990 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (230 KB)

    This paper describes a new method for image segmentation in which both pixel location and intensity similarity are taken into account. The proposed approach can be regarded as adaptive local thresholding since we focus on the analysis of local rather than global features. By applying the validity-guided fuzzy c-means algorithm, the spatial partitioning of an image into sub-regions in our method be... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Fuzzy region-growing segmentation of natural images using local fractal dimension

    Publication Year: 1998, Page(s):991 - 993 vol.2
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (122 KB)

    We present a new method that integrates intensity features and a local fractal-dimension feature into a region growing algorithm for the segmentation of natural images. A fuzzy rule is used to integrate different type of feature into a segmentation algorithm. In the proposed algorithm, intensity features are used to produce an accurate segmentation, while the fractal-dimension feature is used to y... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Segmenting by seeking the symmetry axis

    Publication Year: 1998, Page(s):994 - 998 vol.2
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (681 KB)

    We introduce a method for segmenting a shape from an image and simultaneously determining its symmetry axis. The symmetry is used to help the segmentation and in turn the segmentation determines the symmetry. The problem is formulated as one of minimizing a goodness of fitness function and Dijkstra's algorithm is used to find the global minimum of the cost function. The results are illustrated on ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Segmentation based on region-tracking in image sequences for traffic monitoring

    Publication Year: 1998, Page(s):999 - 1001 vol.2
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (223 KB)

    This paper presents an algorithm for segmenting and tracking moving objects in a scene. Temporal information provided by a region tracking strategy is integrated for improving frame to frame motion segmentation. The method has been applied to a traffic monitoring system and it provides facilities such as estimating trajectories of vehicles, detecting stopped vehicles and estimating the mean veloci... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Robust extraction of characters from color scene image using mathematical morphology

    Publication Year: 1998, Page(s):1002 - 1004 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB)

    Current character extraction systems for scene images are not robust for most real-world applications. In contrast, the system present here achieves robust performance by using morphological segmentation. This paper describes a new morphological segmentation algorithm-differential top-hats (DTT). In, addition, a complete system for extraction of characters from color scene images is presented. The... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Unsupervised texture segmentation using stochastic version of the EM algorithm and data fusion

    Publication Year: 1998, Page(s):1005 - 1009 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (169 KB)

    In this paper I present a new methodology for texture segmentation. This methodology is based through the high order statistics features, the data fusion techniques and finally though the maximum likelihood method in order to find the clusters. The methodology is applied in order to segment natural micro-textures. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Grating cell operator features for oriented texture segmentation

    Publication Year: 1998, Page(s):1010 - 1014 vol.2
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (169 KB)

    The performance of two well-known texture operators (based on Gabor-energy and the cooccurrence matrix) is compared with the performance of a new, biologically motivated texture operator, the grating cell operator, previously proposed by the authors (1995, 1997). The comparison is made using a new quantitative method, based on the Fisher criterion (1923). The results show the clear superiority of ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A genetic algorithm based method to improve image segmentation

    Publication Year: 1998, Page(s):1015 - 1017 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (744 KB)

    Segmentation of textured images is becoming more and more important in applications, as quality control or remote sensing. Segmentation of textured images is demanding. A new genetic algorithm based method to post-process segmented texture images is presented. A genetic algorithm is used to extract web-like rules from segmented texture images. These rules are checked and they are used in post-proc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Corner detection using vector potential

    Publication Year: 1998, Page(s):1018 - 1021 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (169 KB)

    This paper describes how corner detection can be realised using a new feature representation that has recently been successfully exploited for edge and symmetry detection. The feature representation based on an magneto-static analogy. The idea is to compute a vector potential by appealing to an analogy in which the Canny edge-map is regarded as an elementary current density residing on the image p... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Feature extraction of edge by directional computation of gray-scale variation

    Publication Year: 1998, Page(s):1022 - 1027 vol.2
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    The process of edge detection and feature extraction methods is based on converting a change of gray level between two regions of an image into a variation function that gives the difference between the gray level of each region and the gray level of the line of discontinuity. The process of computing the relative difference yields the magnitude, direction, and slope sign of the magnitude, which i... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Image representation, texture and the fuzzy n-tuple

    Publication Year: 1998, Page(s):1028 - 1030 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (153 KB)

    In this paper, the n-tuple pattern recognition method of Bledsoe and Browning is extended to a multiscale representation of the digital image. The new method is based on a fuzzy n-tuple representation of the image's zero crossing sketch. Filter design and the implications of causality are discussed with respect to the proposed method. Improved parameter selection, classification and noise toleranc... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Relative Karhunen-Loeve transform method for pattern recognition

    Publication Year: 1998, Page(s):1031 - 1033 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (237 KB)

    CLAFIC (class-featuring information compression) is a well-known class feature extraction method. By using Karhunen-Loeve transform (KLT) for patterns in a category, class features for the category are extracted. However, such a class feature may not be suitable for classification, if it is also contained in other categories. Suitable class features for classification have to be contained in a cat... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Selection of speaker independent feature for a speaker verification system

    Publication Year: 1998, Page(s):1034 - 1036 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (46 KB)

    In this paper we propose an optimisation technique to choose a user independent feature subset from the input feature set for a dynamic time-warping (DTW) based text-dependent speaker verification system. The results indicate that with the optimised feature set the verification error rate of the system can be improved. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The trace transform as a tool to invariant feature construction

    Publication Year: 1998, Page(s):1037 - 1039 vol.2
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (113 KB)

    The trace transform proposed, a generalisation of the Radon transform, consists of tracing an image with straight lines along which certain functionals of the image function are calculated. Different functionals that can be used may be invariant to different transformations of the image. The paper presents the properties a functional must have in order to be invariant to rotation, translation and ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.