TERMIUM Plus®
The Government of Canada’s terminology and linguistic data bank.
PERTE DIFFRACTION [3 records]
Record 1 - internal organization data 2007-01-31
Record 1, English
Record 1, Subject field(s)
- Radio Waves
- Remote Sensing
- Computer Graphics
Record 1, Main entry term, English
- image degradation
1, record 1, English, image%20degradation
correct, officially approved
Record 1, Abbreviations, English
Record 1, Synonyms, English
- degradation 2, record 1, English, degradation
correct
Record 1, Textual support, English
Record number: 1, Textual support number: 1 DEF
A deleterious change in the definition, brightness, fidelity, or other attribute of an image. 3, record 1, English, - image%20degradation
Record number: 1, Textual support number: 1 CONT
The most common sources of image degradation are ... contrast reduction by the atmosphere, atmospheric turbulence effects, image quality performance of the optical system ... 4, record 1, English, - image%20degradation
Record number: 1, Textual support number: 1 OBS
image degradation: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG). 3, record 1, English, - image%20degradation
Record 1, French
Record 1, Domaine(s)
- Ondes radioélectriques
- Télédétection
- Infographie
Record 1, Main entry term, French
- dégradation de l’image
1, record 1, French, d%C3%A9gradation%20de%20l%26rsquo%3Bimage
correct, feminine noun, officially approved
Record 1, Abbreviations, French
Record 1, Synonyms, French
- dégradation 2, record 1, French, d%C3%A9gradation
correct, feminine noun
- dégradation d’image 3, record 1, French, d%C3%A9gradation%20d%26rsquo%3Bimage
feminine noun
Record 1, Textual support, French
Record number: 1, Textual support number: 1 DEF
Variation nuisible de la définition, de la luminosité, de la fidélité ou d’un autre attribut d’une image. 3, record 1, French, - d%C3%A9gradation%20de%20l%26rsquo%3Bimage
Record number: 1, Textual support number: 1 CONT
L'observation courante indique que toute chaîne instrumentale dégrade les images. Cela se traduit par une atténuation de contrastes, une perte de résolution, un flou dans la perception des détails fins. Depuis les travaux de Fresnel et de Rayleigh, on sait que la dégradation introduite dans l'optique proprement dite est une conséquence directe des phénomènes de diffraction, en particulier celle de Frauenhoffer(diffraction à l'infini). 4, record 1, French, - d%C3%A9gradation%20de%20l%26rsquo%3Bimage
Record number: 1, Textual support number: 1 OBS
dégradation de l’image : terme uniformisé par le Groupe de Travail de la terminologie de RADARSAT-2 (GRRT). 3, record 1, French, - d%C3%A9gradation%20de%20l%26rsquo%3Bimage
Record 1, Key term(s)
- dégradation d’images
- dégradation des images
Record 1, Spanish
Record 1, Campo(s) temático(s)
- Ondas radioeléctricas
- Teledetección
- Gráficos de computadora
Record 1, Main entry term, Spanish
- degradación de la imagen
1, record 1, Spanish, degradaci%C3%B3n%20de%20la%20imagen
correct, feminine noun
Record 1, Abbreviations, Spanish
Record 1, Synonyms, Spanish
Record 1, Textual support, Spanish
Record 2 - internal organization data 2002-09-24
Record 2, English
Record 2, Subject field(s)
- Lasers and Masers
- Optics
- Electromagnetic Radiation
Record 2, Main entry term, English
- diffraction loss
1, record 2, English, diffraction%20loss
correct
Record 2, Abbreviations, English
Record 2, Synonyms, English
Record 2, Textual support, English
Record number: 2, Textual support number: 1 DEF
A portion of the loss of power in a propagating wave (beam) which is due to diffraction. 2, record 2, English, - diffraction%20loss
Record 2, French
Record 2, Domaine(s)
- Masers et lasers
- Optique
- Rayonnements électromagnétiques
Record 2, Main entry term, French
- affaiblissement de diffraction
1, record 2, French, affaiblissement%20de%20diffraction
correct, masculine noun
Record 2, Abbreviations, French
Record 2, Synonyms, French
- perte par diffraction 2, record 2, French, perte%20par%20diffraction
correct, feminine noun
- perte de diffraction 1, record 2, French, perte%20de%20diffraction
correct, feminine noun
- affaiblissement par diffraction 3, record 2, French, affaiblissement%20par%20diffraction
correct, masculine noun
Record 2, Textual support, French
Record 2, Spanish
Record 2, Campo(s) temático(s)
- Láser y máser
- Óptica
- Radiación electromagnética
Record 2, Main entry term, Spanish
- atenuación de difracción
1, record 2, Spanish, atenuaci%C3%B3n%20de%20difracci%C3%B3n
correct, feminine noun
Record 2, Abbreviations, Spanish
Record 2, Synonyms, Spanish
- atenuación por difracción 1, record 2, Spanish, atenuaci%C3%B3n%20por%20difracci%C3%B3n
correct, feminine noun
- pérdida por difracción 1, record 2, Spanish, p%C3%A9rdida%20por%20difracci%C3%B3n
feminine noun
Record 2, Textual support, Spanish
Record number: 2, Textual support number: 1 DEF
Porción de perdida de potencia en una onda que se propaga (haz) por causa de la difracción. 1, record 2, Spanish, - atenuaci%C3%B3n%20de%20difracci%C3%B3n
Record 3 - internal organization data 2002-08-14
Record 3, English
Record 3, Subject field(s)
- Telecommunications Transmission
- Radio Transmission and Reception
Record 3, Main entry term, English
- diffraction attenuation
1, record 3, English, diffraction%20attenuation
correct
Record 3, Abbreviations, English
Record 3, Synonyms, English
Record 3, Textual support, English
Record number: 3, Textual support number: 1 DEF
The additional attenuation of radio waves when obstacles are situated between transmitter and receiver. 2, record 3, English, - diffraction%20attenuation
Record 3, French
Record 3, Domaine(s)
- Transmission (Télécommunications)
- Émission et réception radio
Record 3, Main entry term, French
- affaiblissement de diffraction
1, record 3, French, affaiblissement%20de%20diffraction
correct, masculine noun
Record 3, Abbreviations, French
Record 3, Synonyms, French
- perte de diffraction 1, record 3, French, perte%20de%20diffraction
correct, feminine noun
- affaiblissement par diffraction 1, record 3, French, affaiblissement%20par%20diffraction
correct, masculine noun
Record 3, Textual support, French
Record 3, Spanish
Record 3, Campo(s) temático(s)
- Transmisión (Telecomunicaciones)
- Radiotransmisión y radiorrecepción
Record 3, Main entry term, Spanish
- atenuación de difracción
1, record 3, Spanish, atenuaci%C3%B3n%20de%20difracci%C3%B3n
correct
Record 3, Abbreviations, Spanish
Record 3, Synonyms, Spanish
- atenuación por difracción 1, record 3, Spanish, atenuaci%C3%B3n%20por%20difracci%C3%B3n
correct, feminine noun
- pérdida por difracción 1, record 3, Spanish, p%C3%A9rdida%20por%20difracci%C3%B3n
feminine noun
Record 3, Textual support, Spanish
Record number: 3, Textual support number: 1 DEF
Atenuación adicional de una onda radioeléctrica cuando los obstáculos están situados entre el transmisor y el receptor. 1, record 3, Spanish, - atenuaci%C3%B3n%20de%20difracci%C3%B3n
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