Publication

Glare Caused By Contrast Between Task And Immediate Surround: An Evaluation Of Luminance Distribution In The Field Of View

Marilyne Andersen, Jan Wienold, Peter Hansen, Mandana Sarey Khanie
2016
Conference Papers

Abstract

Luminance ratios have historically been used to assess glare. Using data from a previous experiment, this exploratory study investigates the relationship between luminance variations in the field of view (FOV), measured as luminance ratios, and glare sensation in daylit office-like settings. Correlations between glare sensation assessments and luminance ratios between task area, its immediate surround and far surround were calculated. The results indicate that there are certain definitions of contrast ratio which have better correlations with subjective assessments. The inclusion of this type of glare will enhance the existing glare models for better prediction of glare in a wider set of situations.

Official source

https://infoscience.epfl.ch/entities/publication/19380234-4e1f-4e3f-be74-a5b619f2604b

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Marilyne Andersen, Jan Wienold, Peter Hansen, Mandana Sarey Khanie
2016
Conference Papers

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/19380234-4e1f-4e3f-be74-a5b619f2604b

About this result

Related concepts (32)

Contrast (vision)

Contrast is the contradiction in luminance or colour that makes an object (or its representation in an image or display) distinguishable. In visual perception of the real world, contrast is determined by the difference in the colour and brightness of the object and other objects within the same field of view. The human visual system is more sensitive to contrast than absolute luminance; we can perceive the world similarly regardless of the huge changes in illumination over the day or from place to place.

Data

In common usage and statistics, data (USˈdætə; UKˈdeɪtə) is a collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or simply sequences of symbols that may be further interpreted formally. A datum is an individual value in a collection of data. Data is usually organized into structures such as tables that provide additional context and meaning, and which may themselves be used as data in larger structures.

Type system

In computer programming, a type system is a logical system comprising a set of rules that assigns a property called a type (for example, integer, floating point, string) to every "term" (a word, phrase, or other set of symbols). Usually the terms are various constructs of a computer program, such as variables, expressions, functions, or modules. A type system dictates the operations that can be performed on a term. For variables, the type system determines the allowed values of that term.

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