TERMIUM Plus®

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FACTOR SPECIFICATION [5 records]

Record 1 - external organization data 2009-08-04

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
02.02.07 (19762)
ISO/IEC standard entry number
DEF

ratio of the reflected radiant or luminous flux to the incident flux in incident radiation of given spectral composition, polarization and geometrical distribution [IEC 50 (845), 845-04-58]

OBS

Reflectance(sometimes in AIDC techniques called reflectance factor) is measured on a scale of 0 to 1, at a wavelength or bandwidth of light(spectral response) specified in the particular application specification.

OBS

Barium sulphate or magnesium oxide are used as ’near perfect’ reference white standards (a perfect standard of pure white would have a reflectance of 1,00 at any wavelength of light). The absence of any light in a vacuum is used as reference black standard.

OBS

Samples (such as substrates, inks, etc.) are tested against the standards under similar illumination.

OBS

reflectance: term and definition standardized by ISO/IEC [ISO/IEC 19762-2:2008].

French

Spanish

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Record 2 2007-03-08

English

Subject field(s)
  • Television (Radioelectricity)
  • Video Technology
DEF

A specification rating method that gives a higher factor to video disturbances that cause the most observable picture degradation.

French

Domaine(s)
  • Télévision (Radioélectricité)
  • Vidéotechnique
DEF

Coefficient de performance d'un système de transmission ou de reproduction de la télévision, servant à exprimer les degrés de dérangement subjectifs de l'image de télévision.

Spanish

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Record 3 1996-01-02

English

Subject field(s)
  • Computer Graphics
DEF

A technique that reduces image resolution before image compression commences to reduce compressed image sizes. As an example, one technique collectively replaces a group of dot values with its average. Dots averaged together reside in non-overlapping squares. A single averaged value replaces the collectively averaged dot values, reducing image dot counts, resolution, and PDF compressed image sizes. A downsample factor of 2 reduces both horizontal and vertical image resolutions by a factor of 4.

CONT

Downsampling typically forfeits image detail, but yields significantly smaller compressed images. Acrobat Distiller products enable you to specify the minimum image resolution acceptable and use the maximum downsample factor that does not violate your selected minimum resolution specification or exceed your selected downsample integer value specification.

French

Domaine(s)
  • Infographie
OBS

Voir compression altérante, compression inaltérante.

Spanish

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Record 4 1982-05-14

English

Subject field(s)
  • Job Descriptions
OBS

Knowledge, Decision Making (...)

French

Domaine(s)
  • Descriptions d'emplois

Spanish

Save record 4

Record 5 1981-01-07

English

Subject field(s)
  • Audio Technology
CONT

... flat frequency response, according to the manufacturer's specification, is useful but academic so far as music is concerned for, in the final analysis, it is the most inconsistent factor and the easiest one to change. The solution, therefore, is to select a loudspeaker which gives the best performance in terms of clarity and definition and... have the complete system equalized if necessary for a flat response at the listening position.

French

Domaine(s)
  • Électroacoustique
DEF

Se dit d'une enceinte acoustique pour traduire sa fidélité à reproduire avec précision et au même instant une multitude de sons différents.

Spanish

Save record 5

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