This paper introduced a prototype system which can select clips from video according to objects and their movements. With help of video process experts, it can be established and give great help to video query.
ISBN:
(纸本)0780342534
This paper introduced a prototype system which can select clips from video according to objects and their movements. With help of video process experts, it can be established and give great help to video query.
There are two crucial, complementary, issues faced during design and implementation of practically any but a simple image processing library. First is an ability to represent a variety of image types, typically the di...
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ISBN:
(纸本)0819426377
There are two crucial, complementary, issues faced during design and implementation of practically any but a simple image processing library. First is an ability to represent a variety of image types, typically the discriminate feature being the pixel type, e.g. binary, short integer, long integer, or floating point. The second issue is implementation of image processing algorithms that will be able to operate on each of the supported image representations. In many traditional library designs this leads to reimplementation of the same algorithm many times, once for each possible image representation. Some attempts to alleviate this problem introduce elaborate schemes of dynamic pixel representation and registration. This results in single algorithm implementation, however, due to dynamic pixel registration, efficiency of these implementations is poor. In this paper, we investigate use of parameterized algorithms and design issues involved in implementing them in C++. We permit single expression of the algorithm to be used with any concrete representation of an image. Use of advanced features of C++ and object-oriented programming allow us to use static pixel representations, where pixel types are resolved during compile time instead of run time. This approach leads to very flexible and efficient implementations. We have both advantages: single algorithm implementation for numerous image representations, and best possible speed of execution.
Interactive scene modeling demands extensive programming effort in terms of the diversity of objects and the user's involvement in the modeling process. Using an effective approach dealing with the complexity is t...
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ISBN:
(纸本)078034054X
Interactive scene modeling demands extensive programming effort in terms of the diversity of objects and the user's involvement in the modeling process. Using an effective approach dealing with the complexity is the key to the development of scene modeling applications. This paper presents the use of object-oriented programming paradigm, such as C++, for the natural and flexible specification of interactive modeling process. The top level of our modeling hierarchy is divided into two basic collections: geometric forms and interactive devices. In the geometry superclass, three classes, ListItem, CircItem, and CircList, are defined as a class-type structure that can be dynamically inserted and deleted upon the user's interactions in real time. Class ListItem, as an item abstraction, is further derived to several primitive subclasses whose instances can be combined into various geometrical forms. The interactive device superclass, on the other hand, is currently derived into two typical interactive devices: keyboard and mouse. Their behaviors specify the two basic interactive control functionalities: states and 3D movement sensing, which can be similarly defined for the virtual device subclasses such as 3D mouse and DataGlove. The class-modeling prototype defined in our system has been experimented for the interactive modeling of multiple room environments with objects placed within them.
Research in the use of DEVS (Discrete Event System Specification) based representation of large models on massively parallel platforms is summarized here. We show that parallel DEVS-representation of large scale model...
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ISBN:
(纸本)0819424986
Research in the use of DEVS (Discrete Event System Specification) based representation of large models on massively parallel platforms is summarized here. We show that parallel DEVS-representation of large scale models can achieve several orders of magnitude speedup. When mapped onto distributed memory multicomputer systems, additional speedup is obtained. An example of a watershed simulation is presented which has been executed in the DEVS-C++/MPI environment working on the CM-5 and IBM SP2 massively parallel systems.
This paper will present a new method, based on the notion of abstract interpretation, that can be used to derive path and loop annotations automatically for object-oriented real-time programs. Normally, these annotati...
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ISBN:
(纸本)0818680970
This paper will present a new method, based on the notion of abstract interpretation, that can be used to derive path and loop annotations automatically for object-oriented real-time programs. Normally, these annotations, necessary to get a tight calculation of the worst case execution time (WCET), must be given manually by the programmer The method is illustrated by showing the analysis of an example in Smalltalk.
The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on aut...
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ISBN:
(纸本)0780342534
The representation scheme for models is a key issue in decision support system(DSS). First,various representation scheme for models is outlined. Second, a new method of representation for models, which is based on automata, is presented. Third, a object-oriented model management system has been realized.
This paper gives an overview of the technical direction of Java in terms of the security architecture and desirable features. It also highlights some of the feasibility constraints on the security solutions. This pape...
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ISBN:
(纸本)0818678054
This paper gives an overview of the technical direction of Java in terms of the security architecture and desirable features. It also highlights some of the feasibility constraints on the security solutions. This paper assumes that the reader has prior knowledge of Java basics and general security issues. This document is a purely technical discussion for the wider Java community, and does not necessarily commit JavaSoft to any particular features or implementations.
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper propo...
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ISBN:
(纸本)0780342534
The integration of the non-traditional database systems, such as object-oriented database, multimedia database and file system, makes the information integration technique face with the new challenge. This paper proposes an object-wrapping technique to the development of integrated system. This object-wrapping technique efficiently makes use of the object-oriented technology to support the schema integration mechanism, in particular to be capable of integrating the file system in which the schema doesn't exist. The feasibility of this technique is demonstrated by the development of the prototype system CIM-IDS. This paper will introduce the object-wrapping technique in CIM-IDS and the design of its core part-object wrapper in detail.
The application of knowledge-based system in process control is now growing apparently, especially in the control of complicated systems. In this paper, a rule-based cement kin control system using neural networks is ...
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ISBN:
(纸本)0780342534
The application of knowledge-based system in process control is now growing apparently, especially in the control of complicated systems. In this paper, a rule-based cement kin control system using neural networks is presented. A description method of the control rules for cement kiln is first introduced. Then, an implementation scheme making use of the object-oriented programming is discussed. Based on this method, the hardware and software architecture of the cement kiln control system are presented. The system presents a combination of traditional PID control and the knowledge-based supervisory control, and has been successfully used for the control of several cement kilns.
OMT(object Modeling Technique) is an informal software developing tool. The feature of the informal method is that it describes a system adopting natural language and intuition graphics. In order to increase the tight...
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ISBN:
(纸本)0780342534
OMT(object Modeling Technique) is an informal software developing tool. The feature of the informal method is that it describes a system adopting natural language and intuition graphics. In order to increase the tightness and decrease the ambigity,this paper presents formalizing OMT. Moreover,this paper discusses an automatic translating developing tool from a formal OMT to a C++ program. It may be used to shorten translating period and avoid programming mistakes in manual implementation.
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