VIIIth International Congress of Photogrammetry: General reports

Fagerholm, P. O.; Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Bibliographic data

Multivolume work

Persistent identifier:: 1048861678

Title:: VIIIth International Congress of Photogrammetry

Sub title:: Stockholm, Sweden, July 17 - 26, 1956

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048861678

Language:: English

Other Title:: Paralleltitel: VIIIe Congrès International de Photogrammétrie

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Document type:: Multivolume work

Volume

Persistent identifier:: 1048997715

Title:: General reports

Sub title:: VIIIe Congrès International de Photogrammétrie

Scope:: circa 330 Seiten in verschiedenen Seitenzählungen

Year of publication:: 1957

Place of publication:: Stockholm

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 1048997715

Illustration:: Illustrationen

Signature of the source:: ZS 312(12,3)

Language:: French

Other Title:: Paralleltitel: Rapports généraux

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

Contributor:: Lycken, L. E.; Thunberg, A.; Öhlin, K. A.

Editor:: Fagerholm, P. O.

Corporations:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Adapter:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 8., 1956, Stockholm; Board of the VIIIth International Congress of Photogrammetry

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:: REPORT OF COMMISSION VII PHOTOGRAPHIC INTERPRETATION to the INTERNATIONAL SOCIETY OF PHOTOGRAMMETRY STOCKHOLM, SWEDEN JULY, 1956

Document type:: Multivolume work

Structure type:: Chapter

Section

Title:: REPORT OF COMMISSION VII NATURAL RESOURCES GEOLOGY

Document type:: Multivolume work

Structure type:: Section

GVII-54 PHOTOGRAMMETRIC ENGINEERING Each photo depicts only a very limited area, causing among other things an enormous output of photographs. This is especially true in the case of rapid serial cameras, where the number of pictures is imposing indeed. Another difficulty is the determination of posi tion of the different objects discovered in the photos. Each photo depicts such a small area that it is hard to find definite points of orientation which allow determination of position. If, however, a wide-angle camera is used simultaneously with the large-scale camera, this determination can as a rule be carried out by comparison—but on the other hand, the total amount of photographs is increased. “Without taking into consideration the special case of an atomic war, the following fundamental facts will be apparent from the above: 1. The interpretation of aerial photographs frequently demands greater exactitude and consequently more time than earlier, when camouflage technique had neither reached our present standard nor had the same scope. 2. The number of photos has increased enormously, which makes a great demand on the capacity of interpretation organization. “Moreover, as a rule, the results of the interpretation must be delivered without loss of time—at least in periods of activity—-in order to be of practical use. “In the case of an atomic war, the demands made on photo reconnaissance will be greater still. One of the most basic innovations in a war, where atomic weapons are used or may be expected, is the increased spreading out of the units. This is especially true of an attacking force. The ensuing larger reconnaissance area necessitates a greater number of photographs. “In an atomic war it is of greater importance than in a conventional one to keep continual track of the grouping and activities of the enemy. In the war area there are such weapons as atomic artillery, guided missile batteries, etc., whose positions it is of vital importance to locate. Any concentration of troops or any other target suitable for one’s own atomic weapons must be localized without delay so that an attack may be made before the situation has changed. Photo reconnaissance is doubtless the most effective means of acquiring such information. The demand for continual photo recon naissance is thus accentuated. To a certain degree the work of the photo interpreter is made easier by the fact that field fortifications—on the part of the attacker as well—will be extensive and not too well camouflaged, especially in the case of mobile fighting. “Thus, the conditions of atomic warfare accentuate the value of photo reconnais sance and emphasizes the above motivated demand for an extensive interpretation ca pacity. “The greatest problem of today and tomorrow, therefore, seems to be sufficient speed in manipulating and utilizing the enormous number of aerial photos which, with out a doubt, will be taken in a modern war and especially in an atomic war. The difficulty lies in the processing as well as in the interpretation service. “The primary solution to the interpretation dilemma to present itself is the increase in number of the interpreters. It is open to question, however, whether this is a rational solution. It is difficult to procure qualified photo interpreters. One way of increasing the interpretation capacity and working speed would perhaps be to put assistants at the disposal of the photo interpreters, who could be assigned less qualified tasks and to put specialists on special interpretation targets. Interpretation can be organized in many various ways. “The following classification is only for the purpose of elucidating some problems in connection with a feasible working routine. “Determination of position of the photographs “Owing to the high velocity of the planes and the ensuing difficulties of orientation, the pilot is easily tempted to let the cameras start before he reaches the area to be photo graphed, and also to let them continue long after he has passed the target. Thus, during an aerial photo mission, a great number of exposures are made of terrain which is of no interest. In order to relieve the photo interpreters of unnecessary work, irrelevant photos should be eliminated in advance. Before interpretation can begin the photos must be

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