In this paper we describe a system for monitoring activities in aerial images. The system uses many knowledge sources and databases to guide the interpretation process. It has an innovative control scheme for managing...
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ISBN:
(纸本)0819404489
In this paper we describe a system for monitoring activities in aerial images. The system uses many knowledge sources and databases to guide the interpretation process. It has an innovative control scheme for managing the execution of the tasks utilizing of its knowledge sources and updating of its many databases. As a result the system not only is aware of the existence and usefulness of all knowledge present in its vanous databases it also knows how to use that knowledge and the processing modules in cooperation to achieve a common goal of detecting events of interests from a set of aerial photographs. Also to overcome the difficulties of the object recognition task a model-based technique is used to detect predict verify and recognize the objects of interests in the scene.
A robot is a powerful production tool, however, an "intelligent robot" with flexible control is often needed to acomplish complex tasks and to adapt to changes in its working enviroment. This paper describes...
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ISBN:
(纸本)0819404489
A robot is a powerful production tool, however, an "intelligent robot" with flexible control is often needed to acomplish complex tasks and to adapt to changes in its working enviroment. This paper describes the integration of machine vision with a robot to accomplish this. The system integrates an IBM 7535 industrial 7535 Industrial Robot, with four degrees of freedom, with its own programming language, AML/Entry, and a vision System from Intelledex Inc. The IBM has its own programming language AML/ENTRY, as does the Intelledex vision system, vision BASIC. The major objective of the project was to interface the controller of the IBM 7535 robot with host processor (a compatible IBM AT) to a vision system. In an operational scenario, the vision system is tasked with the responsabilities of recognizing an object and determining its location and orientation. Based on this information, the robot is able to pick up the object and transfer it to a pre-defined destination. The paper describes how the interfaces were developed.
The problem of palletizing (stacking on a pallet) randomly arriving mixed size and content parcels is an important task in most distribution warehouses. Today this task requires human interaction for a solution howeve...
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ISBN:
(纸本)0819404489
The problem of palletizing (stacking on a pallet) randomly arriving mixed size and content parcels is an important task in most distribution warehouses. Today this task requires human interaction for a solution however recently several attempts have been made to automate the solution. The purpose of this paper is to present an overview of the problem an expert system approach and an estimate of the key subproblems which have been identified which are necessary for a solution. The concepts of space filling and emptying as encountered in warehousing are briefly described. Also brief descriptions of two generations of a robotic system for mixed parcel palletizing are presented. The results with these test systems indicate that automatic parcel handling at speeds comparable to humans is feasible however further work is required to obtain a robust solution.
Attributed Fuzzy Tournaments (AFT''s) are a special type of attributed fuzzy graphs which are useful to represent uncertainties inherent to many realworld problems. A new algorithm that finds the best fuzzy ma...
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ISBN:
(纸本)0819404489
Attributed Fuzzy Tournaments (AFT''s) are a special type of attributed fuzzy graphs which are useful to represent uncertainties inherent to many realworld problems. A new algorithm that finds the best fuzzy matching configuration between components of two Attributed Fuzzy Transitive Tournaments (AFTT''s) is proposed. The best fuzzy matching between two AFTT''s is the matching configuration between components of both AFTT''s such that the overall distance measure between two AFTT''s possesses the minimum value. Useful applications of the proposed algorithm can be found in scene matching where the nodes of an AFT represent the objects in the scene and the arcs represent the relationships among the objects. Uncertainties of the image are represented via fuzzy membership values associated with the nodes and arcs. An examples showing the usefulness of the algorithm in pattern matching is shown through image analysis. I.
An application of the theory of fuzzy sets to detect and measure convex objects in an image is described. Geometric measurements involving the concept of the perimeter of a fuzzy set are compared to measurements using...
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ISBN:
(纸本)0819404489
An application of the theory of fuzzy sets to detect and measure convex objects in an image is described. Geometric measurements involving the concept of the perimeter of a fuzzy set are compared to measurements using moment parameters of the membership function. The concept of the perimeter of fuzzy sets offers a way to take geometric measurements from a scene without having to segment it. A method to compute the perimeter of a convex fuzzy set was proposed by Rosenfeld. For the special case of elliptically shaped, convex objects an alternative formula is proposed. In this method the fuzzy set is approximated by a crisp set of elliptic shape which has same area and second order moments. The computation of the membership function plays a key role in this theory. We use a fuzzy c-means clustering algorithm to compute the membership function. The method is tested on real images.
Engineers at the Rome Air Development Center (RADC) are investigating novel approaches to automating the exploitation of digital imagery obtained from reconnaissance missions with the ultimate goal of developing an au...
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Engineers at the Rome Air Development Center (RADC) are investigating novel approaches to automating the exploitation of digital imagery obtained from reconnaissance missions with the ultimate goal of developing an automated imagery exploitation system. Incorporating many computervision and image understanding algorithms, such a system would automatically detect, segment, classify and identify all ground targets in a specified area of interest. Development challenges and proposed solutions are discussed in an attempt to stimulate further research.
This paper presents a method for verification of ANSI form tolerances using computervision with structured light. A sampling plan is developed to determine the required resolution of the system in order to inspect th...
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This paper presents a method for verification of ANSI form tolerances using computervision with structured light. A sampling plan is developed to determine the required resolution of the system in order to inspect the part to a specified tolerance. A statistical method based on the measurement error is used for verification.
A new approach is introduced in this paper to deal with the problems of real-time machine vision and pattern recognition for robotic manipulations. This approach emphasizes three directions: (1) the developed algorith...
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A new approach is introduced in this paper to deal with the problems of real-time machine vision and pattern recognition for robotic manipulations. This approach emphasizes three directions: (1) the developed algorithm has to be compact enough for embedded intelligent control implementation;(2) the computational scheme should be highly efficient for on-line robot reasoning and manipulations;and (3) the resulting system has to be sufficiently flexible to accommodate various working environments and to cope with some system shortcomings. The vertical integration of related vision hardware, image analysis software and analytical techniques (e.g. fuzzy logic and neural networks) together with the novel algorithms for robot eye-brain-hand coordination constitutes a unique robot vision system. The potential of more extensive hardware implementation is discussed and a wider spectrum of applications of the proposed robot vision system is envisioned.
A system which links a computer solids modeler to an active stereo imaging inspection station is used to inspect automobile glass. Research concerning the method of generating projection patterns for circular contours...
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A system which links a computer solids modeler to an active stereo imaging inspection station is used to inspect automobile glass. Research concerning the method of generating projection patterns for circular contours is described. A prototype system consisting of a computer graphics workstation, a projector and a machine vision system was assembled and the system's performance is discussed.
The food industry offers many automated inspection challenges that are not readily solved using commercial industrial vision systems. A discussion of these challenges includes a package inspection involving a variable...
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The food industry offers many automated inspection challenges that are not readily solved using commercial industrial vision systems. A discussion of these challenges includes a package inspection involving a variable 'good' package, color analysis of a baked product, high speed verification of a coating process, and a high speed printed web inspection. Solutions for these problems are solicited.
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