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The Government of Canada’s terminology and linguistic data bank.
HELAVA SYSTEM [1 record]
Record 1 - internal organization data 2009-01-23
Record 1, English
Record 1, Subject field(s)
- Remote Sensing
- Mathematical Geography
- Photography
Record 1, Main entry term, English
- Helava system
1, record 1, English, Helava%20system
correct
Record 1, Abbreviations, English
Record 1, Synonyms, English
Record 1, Textual support, English
Record number: 1, Textual support number: 1 CONT
Uno Vilho Helava, [Finnish] inventor(born [in] 1923)... invented the analytical plotter for automatically drawing maps from photographs. Helava trained as a surveying engineer and came to Canada in 1953 as a research fellow in photogrammetry at the National Research Council. By 1957 he had patented a method of using computers to produce maps from aerial photographs automatically corrected for the curvature of the Earth and atmospheric distortion. The first prototype was built in 1963 using the analogue computer then available... In the late 1970s(digital) microcomputers made the Helava system much cheaper, and several hundred plotters have been built. Because of its affinity with other technologies..., the Helava system is expected to become the world's standard method of making maps by the end of the century. 2, record 1, English, - Helava%20system
Record number: 1, Textual support number: 2 CONT
Stereo Photogrammetry. Aerial photography.-Precision DEMs [digital elevation models] are now being acquired by commercial groups using soft photogrammetric digital workstations, such as the Helava system. 3, record 1, English, - Helava%20system
Record 1, French
Record 1, Domaine(s)
- Télédétection
- Géographie mathématique
- Photographie
Record 1, Main entry term, French
- système Helava
1, record 1, French, syst%C3%A8me%20Helava
correct, masculine noun
Record 1, Abbreviations, French
Record 1, Synonyms, French
Record 1, Textual support, French
Record number: 1, Textual support number: 1 CONT
Uno Vilho Helava, inventeur [finlandais] [né en] 1923) [...] invente le restituteur analytique permettant de dessiner automatiquement des cartes géographiques à partir de photographies. Après avoir reçu une formation d'ingénieur-arpenteur, il vient au Canada en 1953 comme attaché de recherche en photogrammétrie au Conseil national de recherches du Canada. Dès 1957, il fait breveter une méthode pour produire, à l'aide d'ordinateurs et à partir de photos aériennes, des cartes géographiques automatiquement corrigées pour tenir compte de la rotondité de la Terre et de la distorsion atmosphérique. Le prototype est construit en 1963 à l'aide de l'ordinateur analogique alors disponible [...] À la fin des années 70, l'avènement du micro-ordinateur (numérique) réduit de beaucoup les coûts du système Helava et on fabrique des centaines d'appareils. En raison de sa compatibilité avec d'autres technologies [...], on prévoit que, d'ici à la fin du XXe siècle, le système Helava sera la norme dans le monde entier pour la conception de cartes géographiques. 2, record 1, French, - syst%C3%A8me%20Helava
Record number: 1, Textual support number: 1 OBS
système Helava : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre. 3, record 1, French, - syst%C3%A8me%20Helava
Record 1, Spanish
Record 1, Textual support, Spanish
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