Introduction to Photogrammetry

Code:

EGEO3008

Acronym:

EGEO3008

Keywords
Classification	Keyword
OFICIAL	Surveying Engineering

Instance: 2022/2023 - 1S

Active?	Yes
Responsible unit:	Department of Geosciences, Environment and Spatial Plannings
Course/CS Responsible:	Bachelor in Geospatial Engineering

Cycles of Study/Courses

Acronym	No. of Students	Study Plan	Curricular Years	Credits UCN	Credits ECTS	Contact hours	Total Time
L:EG	12	The study plan from 2019	3	-	6	56	162

Teaching language

Suitable for English-speaking students

Objectives

The aim of this unit is to provide the concepts involved in the 3D data acquisition from optical images acquired by photographic cameras.

Learning outcomes and competences

Students will know the basic concepts of Photogrammetry, the geometric properties of photographs, the mathematical formulation of 3D coordinate calculations and the available software tools for this modelling. They will build 3D models of buildings and natural terrain, using both terrestrial images and aerial images.

Working method

Presencial

Pre-requirements (prior knowledge) and co-requirements (common knowledge)

Basic mathematics (Analytical Geometry and calculus).

Program

1. Introduction to Photogrammetry. History of Photogrammetry. Applications and limitations.
2. Photography. Pinhole camera. Photographic camera.
3. Geometry of photographs and mathematical model of central projection
4. Interior orientation parameters of cameras and exterior parameters of photos.
5. Relative and absolute orientations of pairs and blocks of photos. Automation with computer vision tools.
6. Stereoscopy and 3D coordinates from a stereopair (or multistereo).
7. Automatic stereomatching and point cloud generation.
8. Construction of 3D models based on triangulation and grids.
9. Texturing and orthorectification.
10. Quality control.

Mandatory literature

António Berberan; Elementos de fotogrametria. ISBN: 972-95873-5-3

Complementary Bibliography

Förstner, W., Wrobel, B.P.; Photogrammetric Computer Vision: Statistics, Geometry, Orientation and Reconstruction, Springer, 2016. ISBN: 978-3319115498

Teaching methods and learning activities

Theoretical lectures are used to present the subjects, using power point presentations, deductions in the blackboard, and demonstrations in specific software. Practical lectures are used to develop practical works of collecting and process images, to create 3D models, both georeferenced or non-georeferenced, to implement the theoretical concepts.

Software

Agisoft Photoscan
Trimble Inpho

Evaluation Type

Distributed evaluation with final exam

Assessment Components

designation	Weight (%)
Exame	50,00
Trabalho prático ou de projeto	50,00
Total:	100,00

Amount of time allocated to each course unit

designation	Time (hours)
Frequência das aulas	56,00
Total:	56,00

Eligibility for exams

Presence in 75% of the lectures.
Presentation of reports of the the projects carried out in the practical work along the semester.

Calculation formula of final grade

The assessment has two components, both with weight of 50%:
(1) written exam about the concepts involved in the course.
(2) practical work reports, developed along the semester.

Final classification = 50% Practical report + 50% Exam

Both components must be greater or equal to 8 points (40%).