Flight planning and stereoscopy ( an overview)

A overview on flight planning and stereoscopy. Civil engineering

1. Flight
Planning
- By Shashi Kant Das
(B210119CE)

2. Contents
●Parameter
●Flightline
●Overlapping
●More about overlap
●Some required measures


What is flight planning?
Procedure of Flight planning.


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3. What is Flight
Planning? 1
3

4. About
flight planning consists of a flight (navigation) map that shows where
the aerial photographs are to be taken and parameters which outlines
the specific requirements such
4
•as aerial camera and film requirements
•scale, flying height
• end lap, side lap, tilt
• swing round (yaw) tolerances, etc.
1.1

5. Procedure of Flight
Planning 2
5

6. Parameter
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•Altitude of Flight (H)
•Focal length of camera (f)
•Size of photograph
•Size of area or land to be photographed
•Alignment of flight line and parallel flight line
•Lateral overlap
•No of photo in each flight line and overlap
•Scale of flight map
•Ground speed of aeroplane
•Time interval of successive photograph


2.1

7. 2.2
7

8. 2.3
8

9. 2.4
9

10. 2.5
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11. Elements
of
Stereoscopy

12. Contents
What is stereoscopy?
Elements of stereoscopy.


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•Stereo pair of images
•Parallax
•Binocular vision
•Stereoscope
•Orthophoto
•Base line
•Digital Elevation Model (DEM)

13. What is
Stereoscopy? 1
13

14. About
Stereoscopy is a technique used in surveying to
create 3D models of landscapes and objects.
14
1.1

15. Elements of
stereoscopy 2
15

16. 2.1
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Stereo pair of images: A pair of overlapping images taken from two
different positions, usually at a known distance apart, is required to create a
stereoscopic effect.

Parallax: The apparent displacement of an object when viewed from two
different positions is known as parallax. In stereoscopy, the amount of parallax
between the two images is used to determine the depth and distance of the
object being viewed.

Binocular vision: Stereoscopy requires the use of both eyes to view the stereo
pair of images. The images are viewed simultaneously by each eye, which
produces a sense of depth and perspective

17. 2.2
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Stereoscope: A stereoscope is a device that allows the user to view a stereo pair
of images as a single 3D image. It uses lenses or mirrors to align the two images and
present them to the eyes as a single image.

Base line: The distance between the two positions from which the stereo pair of
images was taken is called the base line. The larger the base line, the greater the
parallax and the more detailed the 3D model can be.

Orthophoto: An orthophoto is a 2D map created from a stereo pair of images. It
corrects the distortion caused by the parallax and presents the landscape as it would
appear from above, without any perspective or depth information.

Digital Elevation Model (DEM): A digital elevation model is a 3D
representation of the terrain created from the stereo pair of images. It uses the
parallax information to calculate the elevation and slope of the landscape, and can
be used for a variety of applications, such as land management, urban planning, and
disaster response.

18. Thank you !

You can find me at:
●[email protected]
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19. Credits
https://www.slideshare.net/ghogare30/flight-planning-aerial-photogrammetry

https://www.google.com/search?q=flight+planning&rlz=1C1YTUH_enIN1027IN1027&sxsrf=
APwXEdcTMtWLBzNZDjLsbn8PpBSyHmdUiA:1679856286072&source=lnms&tbm=isch&
sa=X&ved=2ahUKEwjSwdGpoPr9AhU8TGwGHSvoAycQ_AUoAXoECAEQAw&biw=1366&b
ih=568&dpr=1#imgrc=WYE74kCOOqoZRM

https://www.techtarget.com/whatis/definition/stereoscopy-stereoscopic-
imaging#:~:text=Stereoscopy%2C%20sometimes%20called%20stereoscopic%20imaging,i
n%20one's%20line%20of%20sight.


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