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Authors: Sukriti Bhattacharya ; Christian Braun and Ulrich Leopold

Affiliation: Department for Environmental Research and Innovation (ERIN), Luxembourg Luxembourg Institute of Science and Technology (LIST) and Luxembourg

Keyword(s): 2.5D Shadow, Tensorflow, Bresenham’s Algorithm.

Related Ontology Subjects/Areas/Topics: Computational Geometry ; Computer Vision, Visualization and Computer Graphics ; Image Formation and Preprocessing

Abstract: This paper proposes a novel efficient algorithm to calculate a 2.5D shadow map based on a coherent mathematic formula concerning the sun’s position in a specific location, date and time. This work attempts to improve the understanding of the underlying equations and data structures from an analytical, a geometric and a dynamical systems perspective. By using scalable tensor data structure and inherent parallelism offered by data-flow based implementation the proof of concept is developed to test the technical feasibility of the proposed algorithm. Results show noticeable and significant improvements in overall performance keeping accuracy at negligible differences.

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Paper citation in several formats:
Bhattacharya, S.; Braun, C. and Leopold, U. (2019). A Novel 2.5D Shadow Calculation Algorithm for Urban Environment. In Proceedings of the 5th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM; ISBN 978-989-758-371-1; ISSN 2184-500X, SciTePress, pages 274-281. DOI: 10.5220/0007748602740281

@conference{gistam19,
author={Sukriti Bhattacharya. and Christian Braun. and Ulrich Leopold.},
title={A Novel 2.5D Shadow Calculation Algorithm for Urban Environment},
booktitle={Proceedings of the 5th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM},
year={2019},
pages={274-281},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007748602740281},
isbn={978-989-758-371-1},
issn={2184-500X},
}

TY - CONF

JO - Proceedings of the 5th International Conference on Geographical Information Systems Theory, Applications and Management - GISTAM
TI - A Novel 2.5D Shadow Calculation Algorithm for Urban Environment
SN - 978-989-758-371-1
IS - 2184-500X
AU - Bhattacharya, S.
AU - Braun, C.
AU - Leopold, U.
PY - 2019
SP - 274
EP - 281
DO - 10.5220/0007748602740281
PB - SciTePress