TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

BANDWIDTH COMPRESSION [10 records]

Record 1 2020-07-30

English

Subject field(s)
  • Biometrics
CONT

Biometric algorithms are automated methods that enable a biometric system to recognize an individual by his or her anatomical/behavioral traits. They consist of a sequence of automated operations performed by the system to verify or identify its ownership. These operations include quality assessment, enhancement, feature extraction, classification/indexing, matching and fusion, as well as compression algorithms, often used to reduce storage space and bandwidth.

French

Domaine(s)
  • Biométrie

Spanish

Campo(s) temático(s)
  • Biometría
Save record 1

Record 2 2004-02-04

English

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

To remove interlacing from images ... for TV [television] broadcasting.

OBS

Interlacing, invented in the 1940s, is probably the earliest form of video compression. Instead of transmitting a complete video frame 60 times every second, engineers discovered that they could halve the bandwidth needed by the TV signal if they sent alternately odd and even "fields", each field comprising just the odd or even picture lines.... When viewed on a progressive display device, such as a PC, two fields are interlaced to create one frame. Because half the frame's lines are captured a fraction of a second later than the other half, fast-moving objects may appear jagged, the result of the object advancing slightly within 1/60th of a second... It is possible to remove the jagged-edge interlace artifacts by applying a process known as "de-interlacing" to the video.

French

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

Rétablir dans leur chronologie les deux trames successives d'une image de télévision dont les lignes sont entrelacées.

Spanish

Save record 2

Record 3 2003-05-14

English

Subject field(s)
  • Information Processing (Informatics)
CONT

Disk space is less expensive than it used to be, and compression programs like zip and gzip can compress files very well and very fast. In addition, communication protocols such as modem protocols and HTTP/1. 1, the core protocol of the Web, can compress data on the fly, saving bandwidth as effectively as a binary format.

OBS

compress data on the fly: term taken from a World Wide Web Consortium (W3C) document. The W3C’s role is to establish standards relating to Internet technology.

French

Domaine(s)
  • Traitement de l'information (Informatique)
OBS

Du point de vue des programmeurs, les JPEG ou GIF diffèrent grandement des graphiques XBM. Ces deux formats de fichiers sont manipulés au niveau du bit à l'aide de schémas de compression. Ils peuvent supporter un large éventail de profondeurs de couleurs. Le seul moyen vous permettant de créer ces types de graphiques web à la volée consiste à utiliser des scripts côté serveur [...]

Spanish

Save record 3

Record 4 1994-12-15

English

Subject field(s)
  • Telecommunications
  • Television (Radioelectricity)
CONT

At the same time, 525-line formats, that use digital video compression techniques to improve image quality while minimizing bandwidth, have generated great interest.

OBS

525-line system

French

Domaine(s)
  • Télécommunications
  • Télévision (Radioélectricité)
OBS

procédé à 525 lignes

Spanish

Save record 4

Record 5 1993-12-15

English

Subject field(s)
  • Internet and Telematics
  • Office Automation
DEF

CCITT classification of digital facsimile devices which operate at one-minute speeds and use run-length coding of image material to perform redundancy reduction. These machines can also use bandwidth compression to enhance speed.

French

Domaine(s)
  • Internet et télématique
  • Bureautique

Spanish

Save record 5

Record 6 1987-05-15

English

Subject field(s)
  • Television (Radioelectricity)
DEF

... a bandwidth compression technique intended for use with high quality television signals.

French

Domaine(s)
  • Télévision (Radioélectricité)

Spanish

Save record 6

Record 7 1982-06-07

English

Subject field(s)
  • Aeroindustry
CONT

RCA Advanced Technical Laboratories(...) has spent seven years developing a low-power, low-cost video bandwidth compression system, which is now being evaluated by the US Air Force Avionics Laboratory. Object of this exercise is to increase the reliability and immunity to jamming of ground-to-air or air-to-air video data links used for guidance of remotely-piloted aircraft, missiles and "smart" bombs, and also to enhance the effectiveness of reconnaissance imagery transmissions from RPVs.

French

Domaine(s)
  • Constructions aéronautiques
CONT

Les RCA Advanced Technical Laboratories (...) ont mis au point un système de compression de bande vidéo peu coûteux et à faible consommation qui fait l'objet d'essais d'évaluation à l'Avionics Laboratory de l'US Air Force. Ce programme a pour but d'accroître la fiabilité et l'insensibilité au brouillage des systèmes de transmission sol-air et air-air de données vidéo servant au guidage d'engins télépilotés, de missiles et de certaines bombes, ainsi que d'améliorer l'efficacité des transmissions d'images de reconnaissance par les engins télépilotés.

Spanish

Save record 7

Record 8 1976-06-19

English

Subject field(s)
  • Telecommunications

French

Domaine(s)
  • Télécommunications

Spanish

Save record 8

Record 9 1976-06-19

English

Subject field(s)
  • Telecommunications

French

Domaine(s)
  • Télécommunications
OBS

BT-132 télégraphie téléphonie CNID

Spanish

Save record 9

Record 10 1975-03-11

English

Subject field(s)
  • Telephony and Microwave Technology
  • Telecommunications Transmission
OBS

there is some promise that future requirements for voice bandwidth might be reduced by the use of the techniques of speech bandwidth compression. [1172]

French

Domaine(s)
  • Téléphonie et techniques hyperfréquences
  • Transmission (Télécommunications)
OBS

on peut espérer que les exigences en matière de largeur de bande pour la transmission de la voix pourront être rendues moins sévères dans l'avenir grâce à l'application des méthodes de compression de la largeur de bande téléphonique. [trad]

Spanish

Save record 10

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