Computer Interpretation of Imperfect Line Data as a Three-dimensional Scene

Computer Interpretation of Imperfect Line Data as a Three-dimensional Scene PDF Author: Gilbert Falk
Publisher:
ISBN:
Category : Computer graphics
Languages : en
Pages : 406

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Book Description
The paper describes a heuristic scence description program. This program accepts as input a scene represented as a line drawing. Based on a set of known object models the program attempts to determine the identify and location of each object viewed. The most significant feature of the program is its ability to deal with imperfect input data. Also presented are some preliminary results concerning constraints in projections of planar-faced solids. It is shown that for a restricted class of projections, 4 points located in 3-space in addition to complete monocular information are sufficient to specify all the visible point locations precisely. (Author).

Computer Interpretation of Imperfect Line Data as a Three-dimensional Scene

Computer Interpretation of Imperfect Line Data as a Three-dimensional Scene PDF Author: Gilbert Falk
Publisher:
ISBN:
Category : Computer graphics
Languages : en
Pages : 406

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Book Description
The paper describes a heuristic scence description program. This program accepts as input a scene represented as a line drawing. Based on a set of known object models the program attempts to determine the identify and location of each object viewed. The most significant feature of the program is its ability to deal with imperfect input data. Also presented are some preliminary results concerning constraints in projections of planar-faced solids. It is shown that for a restricted class of projections, 4 points located in 3-space in addition to complete monocular information are sufficient to specify all the visible point locations precisely. (Author).

Object Recognition

Object Recognition PDF Author: M. Bennamoun
Publisher: Springer Science & Business Media
ISBN: 1447137221
Category : Computers
Languages : en
Pages : 352

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Book Description
Automatie object recognition is a multidisciplinary research area using con cepts and tools from mathematics, computing, optics, psychology, pattern recognition, artificial intelligence and various other disciplines. The purpose of this research is to provide a set of coherent paradigms and algorithms for the purpose of designing systems that will ultimately emulate the functions performed by the Human Visual System (HVS). Hence, such systems should have the ability to recognise objects in two or three dimensions independently of their positions, orientations or scales in the image. The HVS is employed for tens of thousands of recognition events each day, ranging from navigation (through the recognition of landmarks or signs), right through to communication (through the recognition of characters or people themselves). Hence, the motivations behind the construction of recognition systems, which have the ability to function in the real world, is unquestionable and would serve industrial (e.g. quality control), military (e.g. automatie target recognition) and community needs (e.g. aiding the visually impaired). Scope, Content and Organisation of this Book This book provides a comprehensive, yet readable foundation to the field of object recognition from which research may be initiated or guided. It repre sents the culmination of research topics that I have either covered personally or in conjunction with my PhD students. These areas include image acqui sition, 3-D object reconstruction, object modelling, and the matching of ob jects, all of which are essential in the construction of an object recognition system.

Naval Research Reviews

Naval Research Reviews PDF Author:
Publisher:
ISBN:
Category : Naval research
Languages : en
Pages : 518

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Indexes and Bibliography

Indexes and Bibliography PDF Author: I. Aleksander
Publisher: Springer Science & Business Media
ISBN: 1461598613
Category : Language Arts & Disciplines
Languages : en
Pages : 100

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Proceedings of a Workshop Held at the National Bureau of Standards, Gaithersburg, MD, June 3-4, 1976

Proceedings of a Workshop Held at the National Bureau of Standards, Gaithersburg, MD, June 3-4, 1976 PDF Author: John Martin Evans
Publisher:
ISBN:
Category : Optical pattern recognition
Languages : en
Pages : 128

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NBS Special Publication

NBS Special Publication PDF Author:
Publisher:
ISBN:
Category : Weights and measures
Languages : en
Pages : 764

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Computer Analysis of Scenes of 3-Dimensional Curved Objects

Computer Analysis of Scenes of 3-Dimensional Curved Objects PDF Author: NEVATIA
Publisher: Birkhäuser
ISBN: 3034852061
Category : Science
Languages : en
Pages : 134

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Book Description
1.0 2 The attention then turned to the problem of "Body separation", i.e. separation of occluding bodies in a scene (See [Guzman), [Falk), and [Waltz)). Grape ([Grape)) combined the separation of bodies with recognition, by removing parts of the scene recognized as belonging to a known body. All of these techniques were designed to work with polyhedral objects only, and extensively use the properties of edges and vertices. Though some impressive results have been reported ([Waltz], [Grape)), and perhaps some useful abstractions can be made, the specific techniques used fail to generalize to a wider class of objects. Among previous work on curved objects, B.K.P. Horn ([Horn)) presented techniques for extracting three dimensional depth data from a TV image, using reflection characteristics of the surface. Krakauer ([Krakauer]) represented objects by connections of brightness contours. Ambler et al ([Ambler)) describe experiments with simple shapes, including curved objects, using relations within a two-dimensional image. However, none of these efforts really addresses the problem of "shape" representation and description. Work on outdoor scene analysis is also concerned with non-polyhedral objects ([Bajcsy], [Yakimovsky]), but again no attention has been paid to shape analysis.

Machine Intelligence and Robotics

Machine Intelligence and Robotics PDF Author: NASA Study Group on Machine Intelligence and Robotics
Publisher:
ISBN:
Category : Artificial intelligence
Languages : en
Pages : 276

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Physics-Based Vision: Principles and Practice

Physics-Based Vision: Principles and Practice PDF Author: Lawrence B. Wolff
Publisher: CRC Press
ISBN: 143986585X
Category : Computers
Languages : en
Pages : 424

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Book Description
Commentaries by the editors to this comprehensive anthology in the area of physics-based vision put the papers in perspective and guide the reader to a thorough understanding of the basics of the field. Paper Topics Include: - Intensity Reflection Models - Polarization and Refraction - Camera Calibration - Quantization and Sampling - Depth from Opt

Image Modeling

Image Modeling PDF Author: Azriel Rosenfeld
Publisher: Academic Press
ISBN: 1483275604
Category : Computers
Languages : en
Pages : 460

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Book Description
Image Modeling compiles papers presented at a workshop on image modeling in Rosemont, Illinois on August 6-7, 1979. This book discusses the mosaic models for textures, image segmentation as an estimation problem, and comparative analysis of line-drawing modeling schemes. The statistical models for the image restoration problem, use of Markov random fields as models of texture, and mathematical models of graphics are also elaborated. This text likewise covers the univariate and multivariate random field models for images, stochastic image models generated by random tessellations of the plane, and long crested wave models. Other topics include the Boolean model and random sets, structural basis for image description, and structure in co-occurrence matrices for texture analysis. This publication is useful to specialists and professionals working in the field of image processing.