Actes du 7ième Congrès International de Photogrammétrie: Actes du 7ième Congrès International de Photogrammétrie

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Multivolume work

Persistent identifier:: 1048858235

Title:: Actes du 7ième Congrès International de Photogrammétrie

Sub title:: Washington, septembre 1952

Year of publication:: 1954

Place of publication:: Amsterdam

Publisher of the original:: Argus [u.a.]

Identifier (digital):: 1048858235

Language:: English

Other Title:: Paralleltitel: Proceedings of the 7th International Congress of Photogrammetry

Corporations:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Adapter:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Document type:: Multivolume work

Volume

Persistent identifier:: 104885955X

Title:: Actes du 7ième Congrès International de Photogrammétrie

Sub title:: Proceedings of the 7th International Congress of Photogrammetry

Scope:: circa 800 Seiten in verschiedenen Seitenzählungen

Year of publication:: 1954

Place of publication:: Amsterdam

Publisher of the original:: Argus u.a.

Identifier (digital):: 104885955X

Illustration:: Illustrationen

Signature of the source:: ZS 312(11,2)

Language:: French

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

Corporations:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Adapter:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Founder of work:: International Congress of Photogrammetry, 7., 1952, Washington; American Society of Photogrammetry

Other corporate:: International Congress of Photogrammetry, 7., 1952, Washington; American Society 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:: IDENTIFICATION AND CORRECTION OF THE EFFECTS OF LATERAL LOCAL DISTORTIONS IN THE PERSPECTIVE BUNDLES IN STEREO TRIANGULATION by George Poivilliers.

Document type:: Multivolume work

Structure type:: Chapter

(387) C 8 values of bDZ which are plotted as ordinates on graph paper at an enlarged t scale. If the photographs are correct the by and bz coordinates locate points on the same straight line. An abnormal y-parallax in one of the points A or A’ is indicated by a failure of alignment of the corresponding bz, the by having been aligned. An anomalie in one of the N points is indicated by an opposite error of alignment of the two points at À and A". By introducing by in the system as shown by the lack of alignment on the graph, and removing the parallaxes in 7 these points by bz, one can prove that the same value of by will help both points, if the light rays of these points are not themselves affected by the deviation. The y-deviation of one or several perspective rays of points of orientation causes a failure in the alignment of the by and bz coordinates of the graph and B-error will remain. This error introduced in the by of other planes a failure of alignment function at different distances zo from the points N, and in the bz a failure of alignment function in distances z and y; they make impossible the total removal of parallax from all the points of a plane with only the bz motion. The plane of orientation should be abandoned and another one used. In resumé, it is possible, by the preceding simple and rapid method to diagnose the transverse deviations of perspective rays detrimental to relative crientation. The points affected by these deviations must not be used in the ) relative orientation. The parallaxes that remain in the zones of deviation must be removed locally by by when one wants to see the image of these zones stereoscopically. The corrections of parallax by by and bz must be repeated several times to reduce the accidental errors; the values used are the average of the results obtained at each point. —— "(D CD gn IDENTIFICATION AND CORRECTION OF THE EFFECTS OF LATERAL LOCAL DISTORTIONS IN THE PERSPECTIVE BUNDLES IN STEREO TRIANGULATION > by George Poivilliers. Abstract. The lateral local distortions of the perspective bundles cause linear errors of points in pairs of photographs in stereo triangulation. These distortions can be analyzed and their effect can be eliminated. In a recent article I indicated the existance of abnormal local distortions of perspective rays due particularly to asmospheric refraction. I showed that the effects of the y-parallax of these deviations were related to the relative orientation of the stereoscopic model and how, by an appropriate method, it was possible to diagnose these transverse deformations and to eliminate their effect. The y-component changes the stereoscopic parallax and also the heights z of the terrain mapped. In an isolated pair, the error dz which results can be

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