Procedure for simulating divergent-light halos
(2003) In Applied Optics 42(33). p.6559-6563- Abstract
- Divergent-light halos are halos produced by light from nearby light sources, like street lamps being scattered by small crystals of ice floating in the air. The use of "brute-force" Monte Carlo methods to simulate such halos is extremely inefficient, as most scattered rays will not hit the eye of the observer. I present a new procedure for Monte Carlo simulations of divergent-light halos. This procedure uses rotational symmetries to make a selected sampling of events that greatly improves the computational efficiency of the algorithm. We can typically generate a simulated halo display in minutes using a personal computer, several orders of magnitude more rapid than a simple brute-force method. The algorithm can also optionally generate... (More)
- Divergent-light halos are halos produced by light from nearby light sources, like street lamps being scattered by small crystals of ice floating in the air. The use of "brute-force" Monte Carlo methods to simulate such halos is extremely inefficient, as most scattered rays will not hit the eye of the observer. I present a new procedure for Monte Carlo simulations of divergent-light halos. This procedure uses rotational symmetries to make a selected sampling of events that greatly improves the computational efficiency of the algorithm. We can typically generate a simulated halo display in minutes using a personal computer, several orders of magnitude more rapid than a simple brute-force method. The algorithm can also optionally generate three-dimensional pictures of divergent-light halo displays. (C) 2003 Optical Society of America (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/295697
- author
- Gislén, Lars LU
- organization
- publishing date
- 2003
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Applied Optics
- volume
- 42
- issue
- 33
- pages
- 6559 - 6563
- publisher
- Optical Society of America
- external identifiers
-
- wos:000186612400001
- pmid:14658455
- scopus:1842843863
- ISSN
- 2155-3165
- language
- English
- LU publication?
- yes
- id
- 44cf1374-2291-42e6-a49f-f9549f76fa3d (old id 295697)
- alternative location
- http://www.opticsinfobase.org/abstract.cfm?URI=ao-42-33-6559
- date added to LUP
- 2016-04-01 12:22:37
- date last changed
- 2024-01-08 18:23:06
@article{44cf1374-2291-42e6-a49f-f9549f76fa3d,
abstract = {{Divergent-light halos are halos produced by light from nearby light sources, like street lamps being scattered by small crystals of ice floating in the air. The use of "brute-force" Monte Carlo methods to simulate such halos is extremely inefficient, as most scattered rays will not hit the eye of the observer. I present a new procedure for Monte Carlo simulations of divergent-light halos. This procedure uses rotational symmetries to make a selected sampling of events that greatly improves the computational efficiency of the algorithm. We can typically generate a simulated halo display in minutes using a personal computer, several orders of magnitude more rapid than a simple brute-force method. The algorithm can also optionally generate three-dimensional pictures of divergent-light halo displays. (C) 2003 Optical Society of America}},
author = {{Gislén, Lars}},
issn = {{2155-3165}},
language = {{eng}},
number = {{33}},
pages = {{6559--6563}},
publisher = {{Optical Society of America}},
series = {{Applied Optics}},
title = {{Procedure for simulating divergent-light halos}},
url = {{http://www.opticsinfobase.org/abstract.cfm?URI=ao-42-33-6559}},
volume = {{42}},
year = {{2003}},
}