TERMIUM Plus^®

Record 1,  Textual support,  English

Record number: 1, Textual support number: 1 CONT

Optical coherence tomography(OCT) is a non-contact imaging technique which generates cross-sectional images of tissue with high resolution. Therefore it is especially valuable in organs, where traditional microscopic tissue diagnosis by means of biopsy is not available—such as the human eye. Since OCT is completely noninvasive, it provides in vivo images without impacting the tissue that is imaged. Fast scanning rates and quick signal processing allows for image visualization in real time and at video rate.... the resolution of OCT is much higher than that of other medical imaging methods like ultrasound or magnetic resonance imaging(MRI).  3, record 1, English, - optical%20coherence%20tomography

Record 1,  Textual support,  French

Record number: 1, Textual support number: 1 CONT

[La] tomographie optique cohérente [...] permet de faire de l'imagerie en profondeur d'une tranche de tissu en éliminant à la fois les photons diffusés et ceux provenant des autres couches. [...] L'OCT comme outil d'examen de tissus superficiels est aujourd'hui très répandue [...] Cette technique se révèle en particulier très efficace pour l'examen de l'œil.  11, record 1, French, - tomographie%20par%20coh%C3%A9rence%20optique

Record number: 1, Textual support number: 2 CONT

La tomographie par cohérence optique (OCT) détecte les photons rétrodiffusés de façon analogue à l'échographie doppler ultrasonore. Son avantage est une résolution spatiale beaucoup plus élevée, son inconvénient une très faible profondeur d'échantillonnage [...]  3, record 1, French, - tomographie%20par%20coh%C3%A9rence%20optique

Record number: 1, Textual support number: 1 OBS

OCT : sigle emprunté à l'anglais; correspond aux désignations «optical coherence tomography» ou «optic coherence tomography».  12, record 1, French, - tomographie%20par%20coh%C3%A9rence%20optique

Record 1,  Textual support,  Spanish

Record 2,  Textual support,  English

Record number: 2, Textual support number: 1 CONT

Optical coherence tomography angiography(OCTA) is a noninvasive technique that can detect blood flow signal in retinal and choroidal vessels using motion contrast. It compares the decorrelation signal(differences in the backscattered OCT [optical coherence tomography] signal intensity) between sequential OCT B-scans taken at the same cross-section; thus, yielding maps of vascular flow.... Numerous studies described how to automatically detect and classify retinal disorders(e. g., diabetic retinopathy [DR]). However, most of them relied on fundus images rather than on OCT images or OCT angiograms. Recent development in OCTA induced attempts to use advanced image processing in order to extract quantitative information that characterizes the vascular network in the retina from the angiograms.  3, record 2, English, - optical%20coherence%20tomography%20angiogram

Record number: 2, Textual support number: 1 OBS

angiogram: An x-ray or computer image ... of the blood vessels and blood flow in the body.  4, record 2, English, - optical%20coherence%20tomography%20angiogram

Record 2,  Textual support,  French

Record number: 2, Textual support number: 1 OBS

cliché : Image obtenue par des procédés photographiques.  2, record 2, French, - clich%C3%A9%20d%27angiographie%20par%20tomographie%20par%20coh%C3%A9rence%20optique

Record number: 2, Textual support number: 2 OBS

tomographie en cohérence optique : Technique permettant, grâce à l'interférométrie laser, d'obtenir des coupes in vivo de la rétine et de mesurer l'épaisseur du tissu rétinien avec ses différentes couches.  3, record 2, French, - clich%C3%A9%20d%27angiographie%20par%20tomographie%20par%20coh%C3%A9rence%20optique

Record 2,  Textual support,  Spanish

Record 3,  Textual support,  English

Record number: 3, Textual support number: 1 CONT

... DInSAR [differential interferometry synthetic aperture radar] can measure differential propagation delay with millimetric accuracy as in the case of the C-band synthetic aperture radars of the European Sentinel-1 satellites.  3, record 3, English, - C%2Dband%20synthetic%20aperture%20radar

Record number: 3, Textual support number: 1 OBS

synthetic aperture radar; SAR :[A] synthetic aperture radar(SAR) is a side-looking imaging radar usually operating on either an aircraft or a spacecraft. The radar transmits a series of short, coherent pulses to the ground producing a footprint whose size is inversely proportional to the antenna size, its aperture. Because the antenna size is generally small, the footprint is large and any particular target is illuminated by several hundred radar pulses. Intensive signal processing involving the detection of small Doppler shifts in the reflected signals from targets to the moving radar produces a high resolution image that is equivalent to one that would have been collected by a radar with a much larger aperture.  4, record 3, English, - C%2Dband%20synthetic%20aperture%20radar

Record 3,  Textual support,  French

Record number: 3, Textual support number: 1 CONT

Sentinel-1 est composé de deux satellites (1A et 1B) qui ont pour objectif de fournir en tout temps des images radar. [...] Les satellites [ont chacun] un radar à synthèse d'ouverture en bande C dont la fréquence varie de 5,725 à 7,075 GHz [gigahertz] en émission et de 3,4 à 4,2 GHz en réception.  5, record 3, French, - radar%20%C3%A0%20synth%C3%A8se%20d%27ouverture%20en%20bande%20C

Record 3,  Textual support,  Spanish

Record 4,  Textual support,  English

Record number: 4, Textual support number: 1 CONT

... the industry standard for fish detection are split-beam echosounders. In ideal survey conditions, their echograms provide a clear image of fish as they travel through the beam of ensonified water. For high-energy tidal channels, the conventional processing approach is to limit the depth range by excluding the surface as it is difficult to distinguish bubbles from fish in areas of entrained air... When fish form dense aggregations, it can be difficult to acoustically identify an individual fish from its neighbour when the signal is over-saturated.  3, record 4, English, - fish%20detection

Record 4,  Textual support,  French

Record 4,  Textual support,  Spanish

Record 5,  Textual support,  English

Record number: 5, Textual support number: 1 DEF

A remote-sensing term referring to the process of assigning different colours to different spectral bands.  2, record 5, English, - colour%20composition

Record number: 5, Textual support number: 1 CONT

The image processing consisted in generating intensity images and one coherence image. To facilitate their analysis and interpretation, a coloured composition has been created with the results. This composition is obtained by adding the coherence image in red, the average of both images phase intensities in green and the difference between these phase intensities in blue. As such, a high coherence level(value close to 1) appears in red and indicates a very good phase correlation between the two images, a consequence of the various mechanisms of radar signal scattering and of the lack of change which could affect the target. On the contrary, a weak coherence level(value tending to 0) appears in black and indicates a movement in these zones during the 24 hours interval which separated the two image shots. Lastly, the white spots correspond to areas with a strong radar signal backscattering i. e. with zones of hills or vegetation.  3, record 5, English, - colour%20composition

Record 5,  Textual support,  French

Record number: 5, Textual support number: 1 CONT

Dans les systèmes de télédétection, nous avons vu qu'il est possible de détecter et d'enregistrer des parties du spectre électromagnétique qui ne sont pas décelables à l'oeil nu, comme l'infrarouge par exemple. Pour pouvoir visualiser cette information, on associe aux bandes spectrales du système d'observation des couleurs d'affichage (rouge-vert-bleu), qui ne leur correspondent pas nécessairement. Ce faisant, on crée des compositions colorées [...]  2, record 5, French, - composition%20color%C3%A9e

Record 5,  Textual support,  Spanish

Record 6,  Textual support,  English

Record number: 6, Textual support number: 1 CONT

New methods of acoustic imaging are presented that provide images with reduced reverberation noise and images of nonlinear scattering and propagation parameters of the object, and estimation methods of corrections for wave front aberrations produced by spatial variations in the acoustic propagation velocity. The methods find use in a variety of applications such as acoustic imaging of geological structures, SONAR imaging of sub-sea objects, and medical ultrasound imaging. The methods are based on processing of the received signal from transmitted dual frequency band acoustic pulse complexes with overlapping high and low frequency pulses. The high frequency pulse is used for the image reconstruction and the low frequency pulse is used to manipulate the nonlinear scattering and/or propagation properties of the high frequency pulse.  3, record 6, English, - acoustic%20imaging

Record number: 6, Textual support number: 1 OBS

acoustic imaging: term used at Natural Resources Canada - Earth Sciences Sector.  4, record 6, English, - acoustic%20imaging

Record 6,  Textual support,  French

Record number: 6, Textual support number: 1 CONT

[...] un procédé d'imagerie acoustique qui intercepte les ondes sonores propagées par des bruits à la surface d'un objet et mémorise la signature de chaque son dans une banque informatique de signaux.  3, record 6, French, - imagerie%20acoustique

Record number: 6, Textual support number: 1 OBS

imagerie acoustique : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.  4, record 6, French, - imagerie%20acoustique

Record number: 6, Textual support number: 1 PHR

Imagerie acoustique haute résolution.  5, record 6, French, - imagerie%20acoustique

Record 6,  Textual support,  Spanish

Record 7,  Textual support,  English

Record number: 7, Textual support number: 1 DEF

A two-dimensional brightness pattern in an image, after processing, corresponding to the signal reflected by an object whose sigma falls within the dynamic range of the system, and for which the width of the imaged pattern is determined by the radar and processor rather than by the size of the object.  3, record 7, English, - pulse%20response

Record 7,  Textual support,  French

Record number: 7, Textual support number: 1 CONT

réponse impulsionnelle à support infini.  3, record 7, French, - r%C3%A9ponse%20impulsionnelle

Record 7,  Textual support,  Spanish

Record 8,  Textual support,  English

Record number: 8, Textual support number: 1 DEF

A radar signal that is unprocessed.  4, record 8, English, - raw%20radar%20signal

Record number: 8, Textual support number: 1 CONT

Obtaining the maximum information and value from Synthetic Aperture Radar(SAR) imagery requires that the raw radar signal be processed to the highest possible standard of image quality. This requires flexibility in processing in order to optimize image characteristics for the features of interest.  1, record 8, English, - raw%20radar%20signal

Record number: 8, Textual support number: 1 OBS

raw radar signal: term officially approved by the RADARSAT-2 Terminology Approval Group (RTAG).  4, record 8, English, - raw%20radar%20signal

Record 8,  Textual support,  French

Record number: 8, Textual support number: 1 CONT

Simplement, le radar à synthèse d'ouverture (SAR) se base sur le principe que la contribution de tout objet réfléchissant est présente sur plusieurs échos radar enregistrés à des moments différents. Ainsi, au terme de l'acquisition des données par un capteur SAR, il n'existe pas d'image proprement dite, étant entendu que l'image est constituée de pixels représentant les objets. Plutôt, le signal radar brut contient l'objet, mais il faut le reconstituer à partir du signal. Cette reconstruction de l'objet à partir d'échos correspond au processus de synthèse de l'image. Au terme de ce processus, nous avons une image telle qu'on la connaît dans la vie de tous les jours : une juxtaposition bidimensionnelle de pixels.  1, record 8, French, - signal%20radar%20brut

Record number: 8, Textual support number: 1 OBS

signal radar brut : terme uniformisé par le Groupe de travail de la terminologie de RADARSAT-2 (GTTR).  3, record 8, French, - signal%20radar%20brut

Record 8,  Textual support,  Spanish

Record 9,  Textual support,  English

Record number: 9, Textual support number: 1 CONT

This paper proposes a novel algorithm for mammographic image enhancement, based on identifying the peripheral region of the breast and suppressing the large change in signal caused by reduction of thickness there... The thickness compensation algorithm consists of three processing steps. The first step is to generate a thickness map using two phantoms, one which simulates the shape of the breast in the cranio-caudal projection and a second one as a triangular attenuator.  1, record 9, English, - cranio%2Dcaudal%20projection

Record 9,  Textual support,  French

Record number: 9, Textual support number: 1 CONT

Toutes les cliniques ont déclaré utiliser des radiographes spécialisés et avoir couramment recours à la compression et à la projection cranio-caudale.  2, record 9, French, - incidence%20cranio%2Dcaudale

Record 9,  Textual support,  Spanish

Record 10,  Textual support,  English

Record number: 10, Textual support number: 1 CONT

From biology to silicon : An analog bio-inspired retina for an adaptive vision smart sensor. An image processing systems, the vision sensor is a phototransduction component. Its aim is to convert incident light into an electrical signal. Today, the development in microelectronic technology allows to integrate few transistors around the photosensitive element. This is the basic structure of the smart vision sensor which includes phototransduction and image processing in the focal plane array.  1, record 10, English, - bio%2Dinspired

Record 10,  Textual support,  French

Record number: 10, Textual support number: 1 DEF

Se dit d'un dispositif informatique calqué sur l'architecture neuronale du vivant.  3, record 10, French, - bio%2Dinspir%C3%A9

Record number: 10, Textual support number: 1 CONT

Les dispositifs bio-inspirés - d'autres diraient neuromimétiques - sont d'une application industrielle particulièrement dans les applications non calculatives, de perception et d'action.  2, record 10, French, - bio%2Dinspir%C3%A9

Record 10,  Textual support,  Spanish

Record 11,  Textual support,  French

Record 11,  Textual support,  Spanish

Record 12,  Textual support,  English

Record number: 12, Textual support number: 1 CONT

CAL has an improved version, its SLAR 150 Synthetic-Aperture Fixed-Focus Imaging Radar Equipment(SAFFIRE), under development. This is a synthetic-aperture radar, which uses Doppler beam sharpening and multiple digital filters with extensive signal processing to reduce interference and improve the image.  1, record 12, English, - synthetic%2Daperture%20fixed%2Dfocus%20imaging%20radar%20equipment

Record 12,  Textual support,  French

Record 12,  Textual support,  Spanish