Proceedings of the ninth International Congress of Photogrammetry: Executive & formal meetings, resolutions etc.

Brown, R. Ll.

Bibliographic data

Multivolume work

Persistent identifier:: 1049114248

Title:: Proceedings of the ninth International Congress of Photogrammetry

Sub title:: London, 1960

Year of publication:: 1961

Place of publication:: Amsterdam

Publisher of the original:: Argus

Identifier (digital):: 1049114248

Language:: English

Other Title:: Paralleltitel: Actes du neuvième Congrès International de Photogrammétrie

Editor:: Brown, R. Ll.

Corporations:: International Congress of Photogrammetry, 9., 1960, London

Adapter:: International Congress of Photogrammetry, 9., 1960, London

Founder of work:: International Congress of Photogrammetry, 9., 1960, London

Other corporate:: International Congress of Photogrammetry, 9., 1960, London

Document type:: Multivolume work

Volume

Persistent identifier:: 1049115422

Title:: Executive & formal meetings, resolutions etc.

Sub title:: London, 1960

Scope:: VIII, 144 Seiten

Year of publication:: 1961

Place of publication:: Amsterdam

Publisher of the original:: Argus

Identifier (digital):: 1049115422

Signature of the source:: ZS 312(13,1)

Language:: French

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Brown, R. Ll.

Corporations:: International Congress of Photogrammetry, 9., 1960, London

Adapter:: International Congress of Photogrammetry, 9., 1960, London

Founder of work:: International Congress of Photogrammetry, 9., 1960, London

Other corporate:: International Congress of Photogrammetry, 9., 1960, London

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: HISTORICAL EXHIBITION

Document type:: Multivolume work

Structure type:: Chapter

26 HISTORICAL EXHIBITION Opened by Professor M. Poivilliers on Tuesday, 6th September, 1960 Description The historical Exhibition staged in the gymnasium of University College London comprised a total of 225 separate displays ranging from very early times to the 1930’s or a little later. Of these, 50 were original pieces of apparatus collected together for the first time from various sources all over the world. The remainder consisted of drawings, plans or photographs of pieces of which the originals had been destroyed or lost, or which for one reason or another could not be displayed. The whole exhibition thus gave a very comprehensive view into the beginnings and history of photogrammetry. In addition to apparatus, the exhibition was fortunate to be able to show some extremely valuable originals of early work. Perhaps the most interesting of these were some maps executed by Laussedat with his planchette in 1 850. The display of early perspectographs and sketching devices contained an in teresting picture by Dürer showing one of these instruments in use in the 16th century, and it was instructive to see later in the exhibition how soon after the invention of photography the idea of adapting it to devices of this kind appears to have occurred simultaneously to several inventors. Furthermore, the number of topographical cameras and photo-theodolites already produced before the end of the 19th century was indeed very large. These were well represented in the exhibition. The padded saddle boxes in which much of this equipment was carried takes one back to the days of horse trans port, and the use of wet plate photography in the field and of tents for dark rooms, shows our predecessors to have been very determined and persevering with their inventions. Long before the end of the century ground photogrammetry had established itself as an accepted production technique for the preparation of maps in hilly country, and large numbers of different ancilliary and plotting devices had begun to make their ap pearance. In France, Germany and Canada, the method was in general use. In flatter countries the ground view was not so well adapted to map making, and so as to over come this disadvantage, many attempts were made to get the camera into the air. These included the use of balloons, kites, parachutes and even pigeons, all of which were portrayed in the exhibition. Some of the photographs taken from balloons are quite remarkable for their clarity and definition, and all the more so when one considers the difficulties of wet plate photography. It was in the 20th century that the aeroplane, spurred on no doubt by the demands of the war in 1914, suddenly became a practical proposition, and the earliest practical air survey cameras date from about that time. The exhibition was fortunate to be able to show Messter’s Reihenbildner of 1915 and various British air cameras by Williamson of about that date. Elaborate Photogrammetric measuring tools and plotting machines emerged gradually, by fresh invention and development, from devices that might well be de scribed as little more than sketching aids and long before the aeroplane they had already reached an advanced stage. The exhibition showed a number of most interesting developments, including an early Pulfrich Stereocomparator and the original South African Stereocomparator by Fourcade of 1904. Both these instruments incorporated stereoscopic vision. Pictures were also shown of goniometers by Porro and Koppe who established the principal of observing the photograph through the camera lens in order to cancel out the lens distortions. This latter idea was adopted in many plotting machines. Vivian Thompson’s semi-automatic plotting machine of 1909 was however

Access restriction

Copyright

fullscreen: Executive & formal meetings, resolutions etc. (Part 1)

Multivolume work

Volume

Chapter

Table of contents

Cite and reuse

Volume

Chapter

Image

Image fragment

Citation links

Citation recommendation