@inproceedings{f8b0e7626a6c4b8d95f881e212ca83eb,
title = "An occlusion calculus based on an interval algebra",
abstract = "This paper introduces a new qualitative spatial reasoning formalism, called Interval Occlusion Calculus (IOC), that takes into account multiple viewpoints of a scene. This formalism extends Allen's Algebra by including an interval-based definition for spatial occlusion. We prove that IOC is a relation algebra and show complexity results for this formalism.",
keywords = "Relational algebra, Multiple Viewpoints, Qualitative Spatial Reasoning, Interval algebra, Allen Algebra, Observers, Calculus, Cognition, Complexity theory, Image segmentation, Intelligent systems",
author = "Santos, {Paulo E.} and G{\'e}rard Ligozat and Marjan Safi-Samghabad",
year = "2016",
month = mar,
day = "3",
doi = "10.1109/BRACIS.2015.12",
language = "English",
series = "Proceedings - 2015 Brazilian Conference on Intelligent Systems, BRACIS 2015",
publisher = "Institute of Electrical and Electronics Engineers",
pages = "128--133",
booktitle = "Proceedings - 2015 Brazilian Conference on Intelligent Systems, BRACIS 2015",
address = "United States",
note = "4th Brazilian Conference on Intelligent Systems, BRACIS 2015 ; Conference date: 04-11-2015 Through 07-11-2015",
}