Mapping in Photogrammetry

Mapping in Photogrammetry

4th Grade

10 Qs

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Mapping in Photogrammetry

Mapping in Photogrammetry

Assessment

Quiz

Other

4th Grade

Medium

Created by

AZIZ RAHMAN

Used 4+ times

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of aerial mapping techniques in photogrammetry?

To predict weather patterns in the atmosphere

To study marine life in the ocean depths

To analyze seismic activity in the Earth's crust

To create accurate and detailed maps or models of the Earth's surface.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Explain the process of generating an orthophoto in photogrammetry.

Generating a DSM, then converting it to a 3D model

Skipping the distortion correction step

The process involves collecting aerial images, creating a DSM, correcting distortions, and orthorectifying the images.

Using satellite images instead of aerial images

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How are digital elevation models created in photogrammetry?

Directly measuring elevation on the ground

Using satellite images to create 2D maps

Converting physical models into digital format

Processing overlapping aerial images to generate 3D point clouds

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is camera calibration important in photogrammetry?

Camera calibration corrects distortions in images and provides parameters for accurate measurements and reconstructions.

Camera calibration is only relevant for video recording in photogrammetry

Camera calibration causes image distortions in photogrammetry

Camera calibration is unnecessary in photogrammetry

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of feature extraction from images in photogrammetry?

Feature extraction causes distortion in images

Feature extraction only works for 2D images

Feature extraction is irrelevant in photogrammetry

Feature extraction helps in identifying key points or landmarks in images that are essential for creating accurate 3D models in photogrammetry.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Name one common aerial mapping technique used in photogrammetry.

Aerial mapping

Aerial triangulation

Satellite imaging

Ground surveying

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the key steps involved in the generation of an orthophoto?

Satellite imagery acquisition, Image preprocessing, Digital elevation model (DEM) generation, Orthorectification, Mosaicking of orthorectified images

Ground-based imagery acquisition, Camera calibration, Image preprocessing, Digital terrain model (DTM) generation, Orthorectification, Mosaicking of orthorectified images

Aerial imagery acquisition, Camera calibration, Image preprocessing, Digital terrain model (DTM) generation, Orthorectification, Mosaicking of orthorectified images

Aerial imagery acquisition, Camera calibration, Image enhancement, Digital terrain model (DTM) generation, Orthorectification, Mosaicking of orthorectified images

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