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Pattern Analysis and Machine Intelligence, IEEE Transactions on

Issue 6 • Date Nov. 1983

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Displaying Results 1 - 25 of 25
  • [Front cover]

    Publication Year: 1983 , Page(s): c1
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  • List of Contributors

    Publication Year: 1983 , Page(s): nil1
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  • [Breaker page]

    Publication Year: 1983 , Page(s): nil1
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  • Introduction to the Special Section

    Publication Year: 1983 , Page(s): 561 - 562
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  • A Real-Time Automated Visual Inspection System for Hot Steel Slabs

    Publication Year: 1983 , Page(s): 563 - 572
    Cited by:  Papers (9)  |  Patents (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4971 KB)  

    This paper describes an inspection system designed to automatically detect and classify surface imperfections occurring on continuously cast hot steel slabs in a steel mill. The need to perform inspection at real-time throughput rates of 546 Kpixels/s using off-the-shelf components has led to the development of a unique architecture and algorithm set. The segmentation operations are done in a high... View full abstract»

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  • Identifying and Locating Surface Defects in Wood: Part of an Automated Lumber Processing System

    Publication Year: 1983 , Page(s): 573 - 583
    Cited by:  Papers (38)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6334 KB)  

    Continued increases in the cost of materials and labor make it imperative for furniture manufacturers to control costs by improved yield and increased productivity. This paper describes an Automated Lumber Processing System (ALPS) that employs computer tomography, optical scanning technology, the calculation of an optimum cutting strategy, and a computer-driven laser cutting device. While certain ... View full abstract»

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  • INSPECTOR: A Computer Vision System that Learns to Inspect Parts

    Publication Year: 1983 , Page(s): 584 - 592
    Cited by:  Papers (2)  |  Patents (13)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (7574 KB)  

    A computer vision inspection system has been developed that learns the difference between good and bad parts by being shown several identified good and bad parts. The model, formed during the training session, contains identifying points which are used for locating parts and inspection tests which apply only to pertinent regions of the part. Using the model, the system can distinguish between good... View full abstract»

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  • Precision of Digital Vision Systems

    Publication Year: 1983 , Page(s): 593 - 601
    Cited by:  Papers (18)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2119 KB)  

    The precision of geometric features such as the centroid, area, perimeter, and orientation measured by a 2-D digital vision system is analyzed and tested experimentally. The digitizing error of various geometric features can be expressed in terms of the dimensionless perimeter of the object. As a result of this work, the sampling process can be simplified or eliminated. The analysis is also expand... View full abstract»

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  • Integrated Testing and Algorithms for Visual Inspection of Integrated Circuits

    Publication Year: 1983 , Page(s): 602 - 608
    Cited by:  Papers (4)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2271 KB)  

    This paper deals with the integrated pre-cap testing of integrated circuits (IC's), defined as a simultaneous combination of electrical testing and of visual inspection using image analysis techniques. The emphasis is on image analysis models and algorithms for integrated testing of small and large defects. Two algorithms are presented for the analysis of visible and infrared imagery during electr... View full abstract»

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  • Efficient 3-D Object Representations for Industrial Vision Systems

    Publication Year: 1983 , Page(s): 609 - 618
    Cited by:  Papers (20)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (6081 KB)  

    The representation of 3-D objects is an important step in solving many problems in scene analysis. One of the most successful techniques is that based on the surfaces of objects. We describe several methods for obtaining such surface representations from various types of intrinsic images. In particular, previous work is reviewed and an algorithm based on region growing is investigated in terms of ... View full abstract»

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  • GAGESIGHT: A Computer Vision System for Automatic Inspection of Instrument Gauges

    Publication Year: 1983 , Page(s): 618 - 621
    Cited by:  Papers (3)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3410 KB)  

    GAGESIGHT is a computer vision system recently integrated into production which demonstrates new flexibility in production automation technology. The vision algorithm accommodates significant misregistration in the position and orientation of objects, and adjusts process control parameters accordingly. The GAGESIGHT system is easily reconfigured for inspecting new types of objects by executing a t... View full abstract»

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  • Gauge Inspection Using Hough Transforms

    Publication Year: 1983 , Page(s): 621 - 623
    Cited by:  Papers (7)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2469 KB)  

    An automatic method of inspecting the scaling accuracy of needle-type instrument gauges using a two-stage Hough transform technique is described. The system measures and verifies the relative accuracy of a gauge's response to a specified set of analog input signals. The method does not require that the gauge's position, orientation, or size be known a priori and the algorithm is very suitable for ... View full abstract»

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  • Automatic Inspection System for Printed Circuit Boards

    Publication Year: 1983 , Page(s): 623 - 630
    Cited by:  Papers (16)  |  Patents (6)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (5258 KB)  

    The purpose of this correspondence is to present problems and methods in automating visual inspection of printed circuit boards (PCB's). Vertical and diagonal illumination are useful in detecting PCB patterns correctly. An algorithm comparing local features of the patterns to be inspected with those of the pattern to be referenced is proposed. An inspection system using developed technologies is a... View full abstract»

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  • Error Analysis of Surface Normals Determined by Radiometry

    Publication Year: 1983 , Page(s): 631 - 645
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (4716 KB)  

    Surface normals can be computed from three images of a workpiece taken under three distinct lighting conditions without requiring surface continuity. Radiometric methods are susceptible to systematic errors such as: errors in the measurement of light source orientations; mismatched light source irradiance; detector nonlinearity; the presence of specular reflection or shadows; the spatial and spect... View full abstract»

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  • Recognition of Agricultural Objects by Shape

    Publication Year: 1983 , Page(s): 645 - 653
    Cited by:  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (3084 KB)  

    It is desired to enhance the outline of agricultural contraband in X-ray images of passenger luggage. Agricultural contraband consists of fruit, meats, animals, and plants. We suggest most contraband can be distinguished from other material by an elliptic, rather than rectangular, cross section. An algorithm is proposed to recognize such cross section using the erosion of the absolute gradient of ... View full abstract»

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  • Viewer Independent Shape Recognition

    Publication Year: 1983 , Page(s): 653 - 660
    Cited by:  Papers (19)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (2839 KB)  

    An important problem in vision is to detect the presence of a known rigid 3-D object. The general 3-D object recognition task can be thought of as building a description of the object that must have at least two parts: 1) the internal description of the object itself (with respect to an object-centered frame); and 2) the transformation of the object-centered frame to the viewer-centered (image) fr... View full abstract»

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  • On Closing the Fourier Descriptor Presentation

    Publication Year: 1983 , Page(s): 660 - 661
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (285 KB)  

    A numerical method is presented to close the truncated Fourier descriptor presentation of a closed curve. View full abstract»

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  • On the Use of I-Divergence for Generating Distribution Approximations

    Publication Year: 1983 , Page(s): 661 - 664
    Cited by:  Papers (1)
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    The existence of an upper bound for the error probability as a function of I-divergences between an original and an approximating distribution is proved. Such a bound is shown to be a monotonic nondecreasing function of the I-divergences, reaching the Bayes error probability when they vanish. It has been shown that if the closeness between the original and approximating distributions is assessed b... View full abstract»

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  • Predicting the Required Number of Training Samples

    Publication Year: 1983 , Page(s): 664 - 667
    Cited by:  Papers (9)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (771 KB)  

    In this paper a criterion which measures the quality of the estimate of the covariance matrix of a multivariate normal distribution is developed. Based on this criterion, the necessary number of training samples is predicted. Experimental results which are used as a guide for determining the number of training samples are included. View full abstract»

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  • Scale Preserving Smoothing of Polygons

    Publication Year: 1983 , Page(s): 667 - 671
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (878 KB)  

    A smoother version of a polygon ¿ is defined as a polygon which approximates ¿ according to a given criterion and which simultaneously has no more edges than ¿ itself. In this paper, a scale preserving smoothing algorithm is presented. The input to the algorithm is a polygon ¿ and the output is its smoothed version ¿. ¿, which contains all the scale information that ¿ contains, is called th... View full abstract»

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  • Nonparametric Discriminant Analysis

    Publication Year: 1983 , Page(s): 671 - 678
    Cited by:  Papers (50)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1472 KB)  

    A nonparametric method of discriminant analysis is proposed. It is based on nonparametric extensions of commonly used scatter matrices. Two advantages result from the use of the proposed nonparametric scatter matrices. First, they are generally of full rank. This provides the ability to specify the number of extracted features desired. This is in contrast to parametric discriminant analysis, which... View full abstract»

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  • The Asymptotic Optimal Frequency Domain Filter for Edge Detection

    Publication Year: 1983 , Page(s): 678 - 680
    Cited by:  Papers (10)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (402 KB)  

    In an earlier paper by Shanmugam, Dickey, and Green, an edge detection filter was derived which maximized the energy within a specified interval about an edge feature. The initial expression of this filter involved a prolate spheroidal wave function. However, a careful analysis of the application of an asymptotic approximation to this function uncovered a major dimensional error. The corrected der... View full abstract»

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  • 1983 Index - IEEE Transactions on Pattern Analysis and Machine Intelligence, Vol. PAMI-5

    Publication Year: 1983 , Page(s): 681 - 688
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    Freely Available from IEEE
  • List of Contributors

    Publication Year: 1983 , Page(s): nil2
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    Freely Available from IEEE
  • [Front cover]

    Publication Year: 1983 , Page(s): c2
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    Freely Available from IEEE

Aims & Scope

The IEEE Transactions on Pattern Analysis and Machine Intelligence (TPAMI) is published monthly. Its editorial board strives to present most important research results in areas within TPAMI's scope.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
David A. Forsyth
University of Illinois