Aerial photographs are required to be taken to cover an area of 150km². The longitudinal and side overlaps are to be 60% and 30% respectively. The scale of photograph is 1 cm = 100 m, and the size of each photograph is 20 cm x 20 cm. Find the minimum required number of photographs.

Aerial photographs are required to be taken to cover an area of 150km². The longitudinal and side overlaps are to be 60% and 30% respectively. The scale of photograph is 1 cm = 100 m, and the size of each photograph is 20 cm x 20 cm. Find the minimum required number of photographs.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter14: Highway Surveys And Location

Section: Chapter Questions

Problem 11P

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Concept explainers

Photogrammetry

Photogrammetry is a technology of taking measurements of physical objects present in the environment, using photographs. It includes the process of recording and analyzing a three-dimension image in the two-dimension form. Photogrammetry was invented around 150 years ago in 1851 by Aimé Laussedat, he was also known as the father of photogrammetry, but this method was not in use until 50 years after its invention. This method was first used in Germany by Dr. Albrecht Meydenbauer in 1893 who was the director of the Royal Prussian Photogrammetric institute founded by him.

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Aerial photographs are required to be taken to cover an area of 150km². The longitudinal and side
overlaps are to be 60% and 30% respectively. The scale of photograph is 1 cm = 100 m, and the size
of each photograph is 20 cm x 20 cm. Find the minimum required number of photographs.

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