Lesson 5 Introduction

Welcome to Lesson 5! In this lesson, you will understand and be familiar with the photogrammetric process, the processing systems, and data generation from an image-based UAS. Most applications of the UAS today include one form or another of a camera system (video or still camera) from which different interpretations and therefore different applications are evolved. You will also develop understanding of processes such as aerial triangulation and ortho rectification, which are the backbone of any image processing facility. The photogrammetric textbook Elements of Photogrammetry with Applications in GIS will be your companion, beside the lesson notes, in understanding the topic.

Lesson Objectives

At the successful completion of this lesson, you should be able to:

• understand the concept of sensor and product geolocation;
• understand the concept of direct geo-referencing;
• understand the concept of aerial triangulation;
• outline complete UAS data processing workflow;
• distinguish between different products obtainable from different UAS payload sensors.

Lesson Readings

• Chapters 1, 11, 16, and 17 of the textbook: Elements of Photogrammetry with Applications in GIS, 4th edition
• Chapters 2 and 9 of the textbook: Fundamentals of capturing and processing drone imagery and data
• Chapter 2 of the textbook: Unmanned vehicle systems for geomatics : towards robotic mapping

Lesson Activities