93221 - Geomatics (1) (LM)

Learning outcomes

At the end of the course the student will have acquired the skills needed for the study of the land and the environment through a multidisciplinary integrated systems approach so to select the appropriate tools and techniques to acquire, integrate, process, analyze, archive and distribute geo-referenced spatial data with continuity in digital format.

Course contents

Basics about geodetic measurements

Error theory, accuracy of results obtained. Observables in topography: reference surfaces in geodetic-topographic sciences. Curvilinear coordinates on the ellipsoid and three-dimensional Cartesian coordinates. Approximate solutions for reference surfaces. Traditional topographic measurements: distances, angles, and elevation differences.

An overview of traditional survey methods, networks, and measurement adjustments: planimetric survey with angle and distance measurements. Refinement and reattachment methods. Altimetric survey. Geometric leveling. Products for representing spatial data, DTMs, and DSMs.


GNSS

GNSS (Global Navigation Satellite System): Description of spatial, control, and utilization segments. GNSS signal structure: codes and phases. Dynamic reference systems. Absolute positioning and accuracy. Relative positioning and accuracy. Real-time relative positioning, RTK, and networks for managing differential corrections. Designing GNSS measurements. An overview of GNSS measurement adjustments.

PHOTOGRAMMETRY and LASER SCANNING

Introduction to photogrammetry. Theoretical concepts on image acquisition and processing to build metrically valid three-dimensional models of the territory (aerial photogrammetry) or objects (terrestrial photogrammetry).

Aerial and terrestrial laser scanning techniques: Instrumentation and operation. Elements of survey design. Data processing. Applications to land and cultural heritage.

REMOTE SENSING

Overview of the main active and passive data acquisition platforms.

Readings/Bibliography

ATTENDING AND NON-ATTENDING STUDENTS

Further reading:

- L. Baratin, V. Grassi. 'Topografia. Teoria, applicazioni, esercizi'. Pitagora (principalmente per esercizi)
- L. Biagi “I fondamentali del GPS”, Geomatics Workbooks, vol. 8, 2009
- Crosilla F., Galetto R. 'La tecnica del laser scanning - Teoria ed applicaizoni', CISM Udine, 2006
- Crosilla F., Dequal S. 'Laser scanning terrestre', CISM Udine

Teaching methods

ATTENDING AND NON-ATTENDING STUDENTS

Frontal lessons with in-depth sessions on specific topics. Discussion of case studies where the ability to design and execute a survey intervention is required.

For this course, having a highly applicative characterization, assiduous attendance is required, at least not less than 80% of the lessons.

The horn is NOT recommended for students NOT attending

Field trips for data acquisition exercises may be scheduled; these will be communicated during the course.

Assessment methods

ATTENDING AND NON-ATTENDING STUDENTS

 The exam takes place in oral mode. During the interview the Teacher will verify the candidate's knowledge and understanding of the basic concepts of Geomatics and will evaluate his ability to apply them to concrete cases. You will also verify the transversal knowledge of the topics covered by the program and the acquisition of the fundamental technical terms that characterize the subject. Finally, the ability to identify detection methods suitable for solving specific problems will be evaluated.

Please note that the exam methods will be the same for both attending and NON-attending students.

The evaluation criteria that will contribute to determining the final grade will be:

1) the degree of knowledge, depth and critical understanding of the contents;

2) the ability to argue, to establish relationships between topics and to apply theoretical principles to real cases;

3) the ability to present using appropriate basic technical terminology;

4) the robustness of reasoning in evaluating problems.

The grade will be assigned based on the following grading scale:

18-21: sufficient performance;

22-24: fair performance;

25-27: good performance;

28-29: very good performance;

30: excellent performance;

30 cum laude: very excellent performance.

Throughout the year, the following rounds of examinations are offered: January, February, March, April, May, July, September, November

Teaching tools

Geomatics/Infomatic teaching laboratory with single PC workstations; Open Source and commercial digital image processing software; GIS Open Source software; video projector.

Students with learning disorders and\or temporary or permanent disabilities: please, contact the office responsible ( https://site.unibo.it/studenti-con-disabilita-e-dsa/en/for-students ) as soon as possible so that they can propose acceptable adjustments. The request for adaptation must be submitted in advance (15 days before the exam date) to the lecturer, who will assess the appropriateness of the adjustments, taking into account the teaching objectives.

Office hours

See the website of Marco Dubbini