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Proceedings Paper

Modeling time in object-oriented specifications of real-time imaging systems
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Paper Abstract

Real-time imaging systems are expected to perform at a rate set by the operating environment. This places additional temporal constraints on the implementation, and has led to advance in parallel processing and optimization. The constraints are also applied, however, to the analysis and design models of the system, an aspect that has received far less consideration, particularly outside of academia. It is well understood that the earlier a bug is discovered the cheaper the fix and this is taken to the extent that, if an error can be found during design or even analysis, the repair can be several orders of magnitude cheaper. It is therefore an economic imperative that the analysis and design models are sufficiently expressive such that the flaws in the models can be discovered before they are implemented, and this applies equally to real-time constraints. To achieve this a change in the modeling languages used is needed. An approach that offers potential in this respect is proposed here. The Unified Modeling Language is used as the basis for a transformation of the design model into a formal description of the system which is amenable to simulation and rigorous proving.

Paper Details

Date Published: 5 February 2003
PDF: 7 pages
Proc. SPIE 4796, Low-Light-Level and Real-Time Imaging Systems, Components, and Applications, (5 February 2003); doi: 10.1117/12.453758
Show Author Affiliations
Colin J. Neill, The Pennsylvania State Univ. (United States)
Phillip A. Laplante, The Pennsylvania State Univ. (United States)

Published in SPIE Proceedings Vol. 4796:
Low-Light-Level and Real-Time Imaging Systems, Components, and Applications
C. Bruce Johnson; Divyendu Sinha; Phillip A. Laplante, Editor(s)

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