Running average is a simple and effective background modeling method that generates adaptive background image for moving object detection. Fuzzy Running Average (FRA) improves the selectivity of Standard Running Average (SRA). However, its background restoration rate is slow. This leads to false object detection when a static object becomes dynamic. To overcome this problem, an Extended Fuzzy R...

This work presents an extension of the ODMG standard, called TV_ODMG. This extension aims to support object versioning and temporal features, like transaction and valid times. The extension is based on the Temporal Versions Model, an object-oriented data model that keeps object versions and, for each version, the history of the dynamic properties values. Therefore, some components of the ODMG a...

This paper introduces an object-oriented methodology for distributed objects, SIMOD Systems Interoperability Methodology for Distributed Objects, based on the OOram role modeling methodology extended with an architecturedriven approach based on distributed objects and the ISO RM ODP viewpoints. OOram is an object-oriented analysis and design methodology suited for the development of distributed...

Building on our recent hierarchical model of object recognition in cortex, we show how this model can be extended in a straightforward fashion to perform basic-level object categorization. We demonstrate the capability of our scheme, called “Categorical Basis Functions” (CBF) with the example domain of cat/dog categorization, using stimuli generated with a novel 3D morphing system. We also cont...

The Open Content Object (OCO), which was put forward in the author’s previous paper, is an object that has the function of requesting services and providing services through the messages-passing mechanism, which relies on the Learning Management System (LMS) as the scheduling center of messages. The OCOs can offer a particular and flexible approach to designing the interoperable web-based conte...

In this paper we present a security framework for Bond, a message-oriented distributed object middleware for network computing. Bond Security Framework, BSF, allows developers to exercise performance-security tradeoffs and use the security model best suited for a specific application and for a given environment. BSF consists of an extensible core and a set of well defined security interfaces. A...

When tracking spatially extended objects in a multiple object tracking task, attention is preferentially directed to the centres of those objects (attentional concentration), and this effect becomes more pronounced as object length increases (attentional amplification). However, it is unclear whether these effects depend on differences in attentional allocation or differences in eye fixations. ...

In object-oriented systems, object associations generally result in a complex structure whose precise description is a crucial part of the sys-tem's formal speciication. A particularly common object association arises when one object exclusively controls (owns) another. As exclusive object control is an important aspect of safety and security critical systems, speciic notation to capture direct...

This paper presents Act, an object-oriented library for projects from specialized 3D graphics applications to simple interactive educational programs. Act meets the needs of both occasional and expert graphics programmers, offering a high-level access to the OpenGL library and additional features including object creation, manipulation, and interaction. An interpreted language allows the Act li...

An Object-Z formal speci cation of the ODP Trader is presented which concisely captures the hierarchical context structure, the distribution of information and the communication aspects of the Trader. Particular use is made of generic classes, class inheritance and object aggregation (i.e. the instantiation of collections of similar objects) to give a structured speci cation that can be readily...