TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
GREY FILTER [3 records]
Record 1 - internal organization data 2015-09-29
Record 1, English
Record 1, Subject field(s)
- Scientific Measurements and Analyses
- Ovens, Furnaces and Boilers (Heating)
- Air Pollution
Record 1, Main entry term, English
- Bacharach smoke number
1, record 1, English, Bacharach%20smoke%20number
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A measure of the quantity of smoke in flue gas obtained by comparing the soot spot on a filter paper to a grey scale that ranges from white(0) to black(9) in unit steps. 1, record 1, English, - Bacharach%20smoke%20number
Record 1, French
Record 1, Domaine(s)
- Mesures et analyse (Sciences)
- Fours et chaudières (Chauffage)
- Pollution de l'air
Record 1, Main entry term, French
- indice de Bacharach
1, record 1, French, indice%20de%20Bacharach
correct
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Mesure de la quantité de fumée contenue dans un gaz de combustion obtenue en comparant la trace de suie sur un papier filtre par rapport à une échelle de gris dont les valeurs varient du blanc (0) au noir (9). 1, record 1, French, - indice%20de%20Bacharach
Record 1, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2006-06-01
Record 2, English
Record 2, Subject field(s)
- Remote Sensing
Record 2, Main entry term, English
- gamma filter
1, record 2, English, gamma%20filter
correct, officially approved
Record 2, Abbreviations, English
Record 2, Synonyms, English
- gamma MAP filter 2, record 2, English, gamma%20MAP%20filter
correct, see observation
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
[A filter used] to remove random noise while preserving high frequency features (edges). 3, record 2, English, - gamma%20filter
Record number: 2, Textual support number: 1 CONT
The Gamma filter performs gamma map filtering. Gamma filtering is primarily used on radar data to remove high frequency noise(speckle) while preserving high frequency features(edges). The Gamma Map filter was first proposed by Kuan.... Lopes modified the Kuan Map filter by assuming a gamma distributed scene and setting up two thresholds. The gamma filter size ranges from 1 to 11. Different filter sizes will greatly affect the quality of processed images. If the filter is too small, the noise filtering algorithm is not effective. If the filter is too large, subtle details of the image will be lost in the filtering process. A 7x7 filter usually gives the best results.... The GAMMA filter performs spatial filtering on each individual pixel in an image using the grey level values in a square window surrounding each pixel. The dimensions of the filter must be odd, and can be from 3x3 to 11x11 pixels. 2, record 2, English, - gamma%20filter
Record number: 2, Textual support number: 2 CONT
Gamma Filter yields the best smoothing and despeckling. Moreover, it seems to keep the edges without blurring the minimum. Eight textures are applied, based on the cooccurrence matrix. These textures include mean, variance, homogeneity, contrast, dissimilarity, entropy, second moment, and correlation. 4, record 2, English, - gamma%20filter
Record number: 2, Textual support number: 1 OBS
The term MAP stands for Maximum A Posteriori. 5, record 2, English, - gamma%20filter
Record number: 2, Textual support number: 2 OBS
gamma filter: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 5, record 2, English, - gamma%20filter
Record number: 2, Textual support number: 1 PHR
Gamma-gaussian, gamma-beta, gamma-gamma MAP filter. 5, record 2, English, - gamma%20filter
Record 2, French
Record 2, Domaine(s)
- Télédétection
Record 2, Main entry term, French
- filtre gamma
1, record 2, French, filtre%20gamma
correct, masculine noun, officially approved
Record 2, Abbreviations, French
Record 2, Synonyms, French
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Filtre utilisé pour enlever les bruits aléatoires des images, tout en préservant les caractéristiques les plus pertinentes (bordures). 2, record 2, French, - filtre%20gamma
Record number: 2, Textual support number: 1 OBS
Pour le lissage et le déchatoiement des images, ce filtre surclasse tous les autres filtres. 2, record 2, French, - filtre%20gamma
Record number: 2, Textual support number: 2 OBS
filtre gamma : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 2, record 2, French, - filtre%20gamma
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2003-12-01
Record 3, English
Record 3, Subject field(s)
- Photography
- Cinematography
- Optics
Record 3, Main entry term, English
- neutral-density filter
1, record 3, English, neutral%2Ddensity%20filter
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- neutral filter 2, record 3, English, neutral%20filter
- neutral density filter 3, record 3, English, neutral%20density%20filter
correct
- ND filter 4, record 3, English, ND%20filter
correct
- grey filter 5, record 3, English, grey%20filter
correct
- gray filter 6, record 3, English, gray%20filter
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 CONT
A neutral-density filter appears gray and absorbs all the light-rays of all colors. It serves for both color and black-and-white film as a means of reducing the amount of light of all wavelengths entering the camera through the lens. 7, record 3, English, - neutral%2Ddensity%20filter
Record 3, French
Record 3, Domaine(s)
- Photographie
- Cinématographie
- Optique
Record 3, Main entry term, French
- filtre gris neutre
1, record 3, French, filtre%20gris%20neutre
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- filtre neutre 2, record 3, French, filtre%20neutre
correct, masculine noun
- filtre gris 3, record 3, French, filtre%20gris
correct, masculine noun
Record 3, Textual support, French
Record number: 3, Textual support number: 1 CONT
Filtres gris neutre. Ces filtres permettent de faire varier l'intensité de la lumière qui traverse l'objectif sans modifier le diaphragme ni altérer les couleurs. Ils sont donc utilisables en noir et blanc, comme en couleur [...] 4, record 3, French, - filtre%20gris%20neutre
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Fotografía
- Cinematografía
- Óptica
Record 3, Main entry term, Spanish
- filtro gris
1, record 3, Spanish, filtro%20gris
correct, masculine noun
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Filtro cuyo poder de absorción no afecta a la cromaticidad de la luz que transmite. 1, record 3, Spanish, - filtro%20gris
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