| 释义 |
photogrammetry|fəʊtəʊˈgræmɪtrɪ|
[f. as prec. + -metry.]
The technique of using photographs to ascertain measurements relating to what is photographed, esp. in surveying and mapping.
1875tr. Vogel's Chem. Light xiv. 170 All these circumstances militate against the application of photogrammetry, as this mode of measurement has been called by Meyenbauer. 1894Brit. Jrnl. Photogr. XLI. 55 Balloon photogrammetry. 1933Jrnl. R. Aeronaut. Soc. XXXVII. 386 Most of the continental plotting machines..were designed originally for terrestrial photogrammetry, where each goniometer in the plotter can be set to a known orientation. 1934Ibid. XXXVIII. 257 (heading) Photogrammetry of landing speeds. 1948Sci. News VII. Pl. 25, After the church had been destroyed..the essential dimensions were deduced from a pre-war snapshot... The science of deducing dimensions from photographs is called Photogrammetry. 1959F. H. Moffitt Photogrammetry i. 1 The term aerial photogrammetry denotes that branch of photogrammetry wherein photographs of the terrain..are taken by a precision camera mounted in an aircraft... The term terrestrial photogrammetry denotes that branch..wherein photographs are taken from a fixed, and usually known, position on or near the ground and with the camera axis horizontal or nearly so. Ibid. 2 Terrestrial photogrammetry embraces also the use of cameras at ground stations in known positions for the following purposes: To reproduce plan and elevation views of buildings and structures... By means of motion-picture photography, to make measurements involving transitory phenomena such as wave motion,..moving machinery, [etc.]. 1965New Scientist 18 Nov. 507/1 Photogrammetry is now being explored for use on large microwave aerials, to check the accuracy of construction, and to measure deformations under wind loads. 1978Jrnl. R. Soc. Arts CXXVI. 473/1 Ankara, particularly at the Middle East Technical University, was early in the field in the use of photogrammetry for mass recording.
Hence photograˈmmetric, photograˈmmetrical adjs., of or pertaining to photogrammetry; photograˈmmetrically adv.; photoˈgrammetrist, an expert or specialist in photogrammetry.
1891Athenæum 11 July 67/1 He maintains that every explorer should provide himself with a photogrammetrical apparatus. 1906J. A. Flemer Elem. Treat. Phototopogr. Methods i. 5 The theoretical principles upon which photogrammetric methods are primarily based were known to J. H. Lambert.., who published a work on perspective in 1759. Ibid. xii. 397 If differences in the elevations of points of the terrene are to be deduced photogrammetrically within a limit of error not exceeding one meter, the pictured length..of a meter..should not appear shorter than 0·1 mm. 1939B. B. Talley Engin. Applic. Aerial & Terrestr. Photogrammetry i. 6 For photogrammetrical purposes photographs may be classified as either aerial or terrestrial, depending on whether the taking camera was borne aloft or..on the surface of the earth. Ibid., Photogrammetry..should never be considered as an end in itself. Such consideration is the stumbling block of photogrammetrists. 1950Antiquity XXIV. 85 With the use of Photogrammetric Tables, extreme accuracy was possible in determining and measuring the exact position on the ground of crop-mark sites visible in the air photographs. 1957Oxf. Mag. 21 Nov. 131/1 The search for oil today requires the organisation of teams of specialists: surveyors, palaeontologists, photogrammetrists, geophysicists and geochemists. 1970J. A. Howard Aerial Photo-Ecol. ix. 98 Vertical photographs are simple to use photogrammetrically, as a minimum of mathematical correction is required. 1975Sci. Amer. Jan. 130/3 In 1962..he organized a modern aerial photogrammetric survey of the site from 4,000 feet. |