the proceedings contain 20 papers. the special focus in this conference is on Conceptual Modelling and Query processing. the topics include: Conflictfreeness as a basis for schema integration;database schema design th...
ISBN:
(纸本)3540605843
the proceedings contain 20 papers. the special focus in this conference is on Conceptual Modelling and Query processing. the topics include: Conflictfreeness as a basis for schema integration;database schema design theory;maintaining surrogate data for query acceleration in multilevel secure database systems;calibration of a DBMS cost model withthe software testpilot;static allocation in distributed objectbase systems;estimating data accuracy in a federated database environment;a study of distributed transaction processing in an internetwork;the use of an object repository in the configuration of control systems at CERN;implementation and performance evaluation of compressed bit-sliced signature files;partial migration in an 8mm tape based tertiary storage file system and its performance evaluation through satellite imageprocessing applications;some aspect of rule discovery in data bases;fusion of multi-media information and information highways;relational database design using an ER approach and prolog;supporting distributed individual work in cooperative specification development;handling changes in dynamic specifications in object oriented systems;the rejuvenation of materialized views;normalization of linear recursions based on graph transformations and partitioning pipelines with communication costs.
the structural component of a computervision model expresses qualitative image and scene properties. In our approach a hierarchy of plane graphs forms the structure to represent a variety of different levels of abstr...
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To develop an algorithm for any application takes thought and a lot of trial and error. the algorithm must be coded, compiled, tested for compliance withthe specification. If it does not perform to target, the code m...
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Recent attention on global environmental changes has stimulated the development of large scale global information systems. Satellite images play a very important role for understanding these global changes. However, t...
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A simple polygon P is said to be unimodal if for every vertex of P, the Euclidian distance function to the other vertices of P is unimodai. the study of unimodai polygons has emerged as a fruitful area of computationa...
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Historically. progress in image coding tecliniqnes has been made by incorporating resnits from other fields SUCh as information theory. Most of the existing coding methods such as predictive coding. transform coding, ...
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ISBN:
(纸本)081941638X
Historically. progress in image coding tecliniqnes has been made by incorporating resnits from other fields SUCh as information theory. Most of the existing coding methods such as predictive coding. transform coding, and vector quantization belong to information-theory-based methods in which image signals are considered as ranidoni signals aiid compressed by exploiting their stochastic properties. Apart from these iiiformation-tlieoretic coding iniethods, research on new approaches such as modelbased coding (which is related to 1)0thimage analysis and computergraphics) has recently intensified. An essential difference between conventional coding methods and these new approaches is the image model they assume. Contrary to conventional coding methods which efficiently represent 2-D waveforms of image signals model-based co ding represent iniage signals using structural image models which take into accomit the 3-D properties of the scene in some sense. there have been two major approaches to model-based image coding. One approach uses general niodels such as planar patches and sniooth surfaces to represent the 3-D properties of the oI)jects [11, 19, 28. 31, 33. 36, 39. 40, 43]. the other approach utilizes detailed 1)arameterized 3-D object models such as a parameterized facial model [2. 6, 13. 15. 17, 22. 24. 2G. 32, 35. 41. 47, 48. 49. 51. 54]. TIne former approach has been discussed in the context of advanced motion compensation. the latter approach is clearly different from the conventional approaches. since it uses an explicit 3—D model and encodes images with coniputer—vision— Oiieiite(il tecliniques an(I 1eJ)1()(luces iniages with colnj)uter—grapllics—oriented techniques . Both approaches will potentially achieves very low l)it rate video compression. Iii the following sectionis. unage co(ling schemes are described froni the point of view of their associated image IIli)delS. Amoiig our works related to these paradignins in the Univ. of Tokyo [2. 3, 4. 8, 9, 10,
the objective of this paper is to describe the approach followed in the design of the INVAID Central Process, set for motorway network (high speed) applications, and to discuss the results obtained so far. the INVAID ...
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the objective of this paper is to describe the approach followed in the design of the INVAID Central Process, set for motorway network (high speed) applications, and to discuss the results obtained so far. the INVAID project utilizes an Automatic Incident Detection System (AID) based on the application of computervision techniques. Data collected by the system are processed at central level to produce the spatial and temporal trailing of the received data, to detect and follow up incidents and congestion along the road network.
this paper describes experiments and results of trials which led to the development of TRANSvision (Traffic Representation by Artificial Neural System and vision). this is a system that learns from experience or examp...
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this paper describes experiments and results of trials which led to the development of TRANSvision (Traffic Representation by Artificial Neural System and vision). this is a system that learns from experience or examples making it a uniquely versatile and flexible image analysis development system. TRANSvision is believed to be the first advanced hybrid neural network based computervision system to be applied to traffic monitoring and is a development of the TRIP II system. TRANSvision features an IBM PC/AT based hardware configuration but incorporates a new enhanced set of neural network based classifiers and control architecture. the main aims of the work reported here were firstly to develop imageprocessing algorithms for traffic scene analysis and secondly to design a system capable of recognizing traffic events and patterns which cannot easily be defined and codified into a conventional system. Examples of applications include vehicle classification, congestion monitoring and incident detection. the system described here is capable of recognizing patterns, for instance, in the classification of congestion not interms of measuring precise number of vehicles and speed but in a similar way to the overall interpretation of a human operator.
the following topics are dealt with: circuit and system theory;electron devices;electron devices and circuits;microwave and acoustic wave devices and circuits;solar cells and systems;computer aided design;testing and ...
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ISBN:
(纸本)0879426551
the following topics are dealt with: circuit and system theory;electron devices;electron devices and circuits;microwave and acoustic wave devices and circuits;solar cells and systems;computer aided design;testing and technologies;analog integrated circuits;digital integrated circuits;signal processing;algorithms and circuit implementations;DSP algorithms and circuit implementations;DSP for imageprocessing;DSP for speech processing;telecommunications;ISDN;communication networks;mobile radio;antennas;optical communications;spread spectrum communications;biomedical engineering;biomedical modeling and simulation;control and robotics;model reference adaptive control;robot programming and synthesis of robot control;hardware architecture;software development;real-time systems;artificial intelligence;pattern recognition;low-level vision;power systems;power electronics;electronic equipment;operation planning;industrial power;education programs;and educational tools.
A bus system that can change dynamically to suit computational needs is referred to as reconfigurable. In this work we are interested in obtaining fast algorithms for a number of low-level vision tasks on a two-dimens...
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ISBN:
(纸本)0818626720
A bus system that can change dynamically to suit computational needs is referred to as reconfigurable. In this work we are interested in obtaining fast algorithms for a number of low-level vision tasks on a two-dimensional mesh augmented with a reconfigurable bus system (reconfigurable mesh). Specifically, for an n×n digitized image stored one pixel per processor we present O(log log n) algorithms to compute low-level descriptors including perimeter, area, histogram, median row, center, as well as several moments.
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