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FREQUENCE LUMINANCE [8 records]
Record 1 - internal organization data 2007-02-05
Record 1, English
Record 1, Subject field(s)
- Space Physics
- Astrophysics and Cosmography
- Atmospheric Physics
Record 1, Main entry term, English
- radiance temperature
1, record 1, English, radiance%20temperature
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- brightness temperature 2, record 1, English, brightness%20temperature
correct, see observation
- equivalent blackbody temperature 3, record 1, English, equivalent%20blackbody%20temperature
correct
- equivalent black body temperature 4, record 1, English, equivalent%20black%20body%20temperature
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
Apparent temperature of radiation from a distant emitting region, i.e. the temperature that a blackbody would have in order to radiate the same observed flux density per unit solid angle. 5, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 1 CONT
Brightness temperatures are both a measure of the physical temperature within the snow and a gauge of emissivity, or the ability of water or ice/snow to emit radiation at the microwave frequencies (frequencies in the centimeter wavelength range). Dry snow emits much less radiation than wet snow, which behaves almost like a perfect emitter (blackbody), giving off a wide range of frequencies of radiation. Therefore, dry snow and ice have lower brightness temperatures than wet snow surfaces. 6, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 2 CONT
Depending on the nature of the source of radiation and any subsequent absorption, the brightness temperature may be independent of, or highly dependent on, the wavelength of the radiation. 7, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 3 CONT
Ultimately, one is interested in the temperature that corresponds to a particular Planck function value ... This temperature is determined by inverting the Planck function, ... The temperature derived is called brightness temperature because of its historical connection with radio astronomy; however, the terms radiance temperature or equivalent black body temperature are also frequently used. 8, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 1 OBS
The word "brightness" is often used by physicists to mean what illumination engineers and laboratory photometrists call "luminance". However, astronomers usually use "brightness" for what is more usually called "radiance", or even "spectral radiance" (whence the term "brightness temperature", used in astrophysics, radio astronomy, planetary science and remote sensing, for the temperature of a black body having the same spectral radiance as an astrophysical object at some wavelength). When luminance is intended, astronomers usually say "surface brightness". 9, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 2 OBS
Brightness temperature in radio astronomy is equivalent to specific intensity in optical astronomy. 10, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 3 OBS
luminance temperature: luminance [is] the photometric equivalent of radiance. Luminance is obtained by integrating spectral radiance weighted by luminous efficiency over the visible spectrum. 7, record 1, English, - radiance%20temperature
Record number: 1, Textual support number: 4 OBS
radiance temperature: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 11, record 1, English, - radiance%20temperature
Record 1, French
Record 1, Domaine(s)
- Physique spatiale
- Astrophysique et cosmographie
- Physique de l'atmosphère
Record 1, Main entry term, French
- température de luminance
1, record 1, French, temp%C3%A9rature%20de%20luminance
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- température de brillance 2, record 1, French, temp%C3%A9rature%20de%20brillance
correct, feminine noun
- température équivalente de corps noir 5, record 1, French, temp%C3%A9rature%20%C3%A9quivalente%20de%20corps%20noir
feminine noun
- température équivalente corps noir 6, record 1, French, temp%C3%A9rature%20%C3%A9quivalente%20corps%20noir
feminine noun
- température radiative apparente 3, record 1, French, temp%C3%A9rature%20radiative%20apparente
feminine noun
- température apparente 6, record 1, French, temp%C3%A9rature%20apparente
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
[...] température à laquelle il faudrait porter un corps noir pour qu’il présente un rayonnement dont l’énergie est identique à celle du corps analysé dans la même bande de fréquence. 7, record 1, French, - temp%C3%A9rature%20de%20luminance
Record number: 1, Textual support number: 1 CONT
[...] les données acquises de manière passive dans le domaine micro-onde [hyperfréquences] sont présentées en température de brillance Tb [...] La température de brillance est la température que devrait avoir un corps noir pour avoir la même luminance que l’objet observé qui a une température T [...] 8, record 1, French, - temp%C3%A9rature%20de%20luminance
Record number: 1, Textual support number: 2 CONT
Dans le domaine de l’infra-rouge thermique utilisé en télédétection (8 - 14 mm), les nuages sont pratiquement assimilables à des corps noirs et ont une émissivité de 0.98. La détermination de leur luminance permet alors d’accéder à leur température, elle-même très liée à leur altitude. [...] La luminance obtenue dans une bande spectrale sur une cible précise est transformée en température de brillance à l’aide de tables dérivées de l’équation de Planck. 9, record 1, French, - temp%C3%A9rature%20de%20luminance
Record number: 1, Textual support number: 3 CONT
[...] l'océan rayonne de l'énergie en quantité identique à celle qu'il absorbe. La puissance qu'il émet par unité d’angle solide et de surface s’appelle la brillance(B) et se mesure en watts par stéradian et par mètre carré [En fait, ] ce que l'on appelle couramment «brillance» en télédétection hyperfréquence correspond à la définition rigoureuse de la «luminance»(ou «radiance» en anglais). Rigoureusement, la brillance est la puissance reçue, par unité d’angle solide et de surface du capteur. On définit couramment la puissance rayonnée par la mer en terme de température de brillance(Tb), qui représente la température du corps noir qui aurait, à la fréquence [...] la même brillance que la mer. Un corps noir est un objet qui absorbe tout le rayonnement incident à sa surface, et par conséquent dont la réflectivité est nulle. 4, record 1, French, - temp%C3%A9rature%20de%20luminance
Record number: 1, Textual support number: 1 OBS
température de luminance : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR). 10, record 1, French, - temp%C3%A9rature%20de%20luminance
Record 1, Key term(s)
- température de corps noir équivalente
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Física espacial
- Astrofísica y cosmografía
- Física de la atmósfera
Record 1, Main entry term, Spanish
- temperatura de luminancia
1, record 1, Spanish, temperatura%20de%20luminancia
feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record number: 1, Textual support number: 1 DEF
Temperatura de un cuerpo negro que irradia la misma cantidad de energía por unidad de superficie, en las longitudes de onda consideradas, que el cuerpo observado. 1, record 1, Spanish, - temperatura%20de%20luminancia
Record 2 - internal organization data 2007-01-13
Record 2, English
Record 2, Subject field(s)
- Television (Radioelectricity)
Record 2, Main entry term, English
- comb filter
1, record 2, English, comb%20filter
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
- combline filter 2, record 2, English, combline%20filter
correct
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A type of filter network that is, in effect, a multiple-bandpass design that passes only frequencies within a number of narrow bands, or provides outputs corresponding to each of its passbands. 3, record 2, English, - comb%20filter
Record number: 2, Textual support number: 1 OBS
Comb filters are so named because their response characteristics have the appearance of a comb. 3, record 2, English, - comb%20filter
Record 2, Key term(s)
- comb filtre
- combline filtre
Record 2, French
Record 2, Domaine(s)
- Télévision (Radioélectricité)
Record 2, Main entry term, French
- filtre en peigne
1, record 2, French, filtre%20en%20peigne
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- filtre-peigne 2, record 2, French, filtre%2Dpeigne
correct, masculine noun
Record 2, Textual support, French
Record number: 2, Textual support number: 1 DEF
Filtre dont la réponse a la forme d’un peigne. 3, record 2, French, - filtre%20en%20peigne
Record number: 2, Textual support number: 1 CONT
Un circuit de séparation des signaux de luminance [...] et de chrominance modulés. Dans le cas de la modulation de fréquence, le filtre en peigne n’ est pas utilisable car le spectre n’ est pas un spectre de raies à écart de la fréquence de ligne. 4, record 2, French, - filtre%20en%20peigne
Record number: 2, Textual support number: 1 OBS
C’est un filtre sélectif qui laisse passer une série de fréquences multiples les unes des autres en atténuant les plages de fréquences intermédiaires. 3, record 2, French, - filtre%20en%20peigne
Record 2, Spanish
Record 2, Textual support, Spanish
Record 3 - internal organization data 2007-01-09
Record 3, English
Record 3, Subject field(s)
- Audiovisual Techniques and Equipment
- Television (Radioelectricity)
Record 3, Main entry term, English
- cross color
1, record 3, English, cross%20color
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
- cross colour 2, record 3, English, cross%20colour
correct
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
An artifact produced [on TV screens] by the imperfect decoding of composite video. 2, record 3, English, - cross%20color
Record number: 3, Textual support number: 1 OBS
High frequency luma components are incorrectly decoded as chroma signals, causing colorization where there should be none. 2, record 3, English, - cross%20color
Record number: 3, Textual support number: 2 OBS
A video system of limited bandwidth can confuse the highest luminance frequencies with chrominance information. The effect is flickering colours, often seen on tweed jackets and other fine-patterned clothing. 2, record 3, English, - cross%20color
Record 3, Key term(s)
- cross-color
- cross-colour
Record 3, French
Record 3, Domaine(s)
- Audiovisuel (techniques et équipement)
- Télévision (Radioélectricité)
Record 3, Main entry term, French
- battement couleur
1, record 3, French, battement%20couleur
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
Record 3, Textual support, French
Record number: 3, Textual support number: 1 DEF
Artefact visible sur les écrans de télévision, résultant de l'interprétation comme signal de chrominance d’un signal de luminance de fréquence élevé. 2, record 3, French, - battement%20couleur
Record 3, Spanish
Record 3, Textual support, Spanish
Record 4 - internal organization data 2004-02-23
Record 4, English
Record 4, Subject field(s)
- Television (Radioelectricity)
Record 4, Main entry term, English
- line tilt correction
1, record 4, English, line%20tilt%20correction
correct
Record 4, Abbreviations, English
Record 4, Synonyms, English
Record 4, Textual support, English
Record number: 4, Textual support number: 1 DEF
A sawtooth waveform, recurring at line frequency, introduced into the picture signal to compensate for inherent amplitude distortion in the camera output. 2, record 4, English, - line%20tilt%20correction
Record 4, French
Record 4, Domaine(s)
- Télévision (Radioélectricité)
Record 4, Main entry term, French
- signal de correction linéaire de ligne
1, record 4, French, signal%20de%20correction%20lin%C3%A9aire%20de%20ligne
correct, masculine noun
Record 4, Abbreviations, French
Record 4, Synonyms, French
Record 4, Textual support, French
Record number: 4, Textual support number: 1 DEF
Signal périodique à la fréquence de ligne, en forme de dents de scie, utilisé pour corriger la distorsion de luminance due au tube analyseur. 1, record 4, French, - signal%20de%20correction%20lin%C3%A9aire%20de%20ligne
Record 4, Spanish
Record 4, Campo(s) temático(s)
- Televisión (Radioelectricidad)
Record 4, Main entry term, Spanish
- señal lineal de corrección de línea
1, record 4, Spanish, se%C3%B1al%20lineal%20de%20correcci%C3%B3n%20de%20l%C3%ADnea
correct, feminine noun
Record 4, Abbreviations, Spanish
Record 4, Synonyms, Spanish
Record 4, Textual support, Spanish
Record 5 - internal organization data 1998-07-04
Record 5, English
Record 5, Subject field(s)
- Optics
Record 5, Main entry term, English
- Ferry-Porter law
1, record 5, English, Ferry%2DPorter%20law
correct
Record 5, Abbreviations, English
Record 5, Synonyms, English
Record 5, Textual support, English
Record 5, French
Record 5, Domaine(s)
- Optique
Record 5, Main entry term, French
- loi de Ferry-Porter
1, record 5, French, loi%20de%20Ferry%2DPorter
correct, feminine noun
Record 5, Abbreviations, French
Record 5, Synonyms, French
Record 5, Textual support, French
Record number: 5, Textual support number: 1 DEF
Loi stipulant que la fréquence critique de fusion(F) est directement proportionnelle au logarithme de la luminance(L) du stimulus. 1, record 5, French, - loi%20de%20Ferry%2DPorter
Record number: 5, Textual support number: 1 OBS
Source MVISI-F : Le nouveau dictionnaire de la vision par Michel Millodot, Médiacom Vision Éditeur, 1997. 2, record 5, French, - loi%20de%20Ferry%2DPorter
Record 5, Spanish
Record 5, Textual support, Spanish
Record 6 - internal organization data 1996-05-17
Record 6, English
Record 6, Subject field(s)
- Video Technology
- Television (Radioelectricity)
Record 6, Main entry term, English
- pseudo-component 1, record 6, English, pseudo%2Dcomponent
Record 6, Abbreviations, English
Record 6, Synonyms, English
Record 6, Textual support, English
Record 6, French
Record 6, Domaine(s)
- Vidéotechnique
- Télévision (Radioélectricité)
Record 6, Main entry term, French
- pseudo-composante
1, record 6, French, pseudo%2Dcomposante
feminine noun
Record 6, Abbreviations, French
Record 6, Synonyms, French
Record 6, Textual support, French
Record number: 6, Textual support number: 1 CONT
Les signaux vidéo étaient échantillonnés sur 9 bits par une horloge synchronisée avec la ligne vidéo et à une fréquence quadrupôle de celle de la sous-porteuse de chrominance, puis étaient convertis en pseudo-composantes Y, Cr/Cb(luminance, chrominance) à l'aide d’une méthode exclusive. 1, record 6, French, - pseudo%2Dcomposante
Record 6, Spanish
Record 6, Textual support, Spanish
Record 7 - internal organization data 1993-04-01
Record 7, English
Record 7, Subject field(s)
- Photography
- Lighting
- Computer Graphics
Record 7, Main entry term, English
- luminance frequency 1, record 7, English, luminance%20frequency
Record 7, Abbreviations, English
Record 7, Synonyms, English
Record 7, French
Record 7, Domaine(s)
- Photographie
- Éclairage
- Infographie
Record 7, Main entry term, French
- fréquence de luminance
1, record 7, French, fr%C3%A9quence%20de%20luminance
feminine noun
Record 7, Abbreviations, French
Record 7, Synonyms, French
Record 7, Textual support, French
Record 7, Spanish
Record 7, Textual support, Spanish
Record 8 - internal organization data 1987-01-22
Record 8, English
Record 8, Subject field(s)
- Signalling and Illumination (Air Transport)
Record 8, Main entry term, English
- high intensity obstacle light
1, record 8, English, high%20intensity%20obstacle%20light
correct
Record 8, Abbreviations, English
Record 8, Synonyms, English
Record 8, Textual support, English
Record number: 8, Textual support number: 1 CONT
High intensity obstacle lights should be flashing white lights. The flash frequency should be between 40 and 60 per minute. The effective intensity of the flash should be variable and dependent on the background luminance .... 1, record 8, English, - high%20intensity%20obstacle%20light
Record 8, French
Record 8, Domaine(s)
- Signalisation (Transport aérien)
Record 8, Main entry term, French
- feu d’obstacle à haute intensité
1, record 8, French, feu%20d%26rsquo%3Bobstacle%20%C3%A0%20haute%20intensit%C3%A9
masculine noun
Record 8, Abbreviations, French
Record 8, Synonyms, French
Record 8, Textual support, French
Record number: 8, Textual support number: 1 CONT
Il est recommandé que les feux d’obstacle à haute intensité soient des feux blancs à éclats. La fréquence des éclats devrait être comprise entre 40 et 60 à la minute. L'intensité efficace de l'éclat devrait varier avec la luminance de fond(...) 1, record 8, French, - feu%20d%26rsquo%3Bobstacle%20%C3%A0%20haute%20intensit%C3%A9
Record 8, Spanish
Record 8, Textual support, Spanish
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