Course Objectives

• • To introduce digital photogrammetry

  • To study the data acquisition and components

  • To study data conversion techniques

  • To study digital photogrammetric applications

Learning Outcomes

• • After completion of this course, students will be able to prepare DEM, TIN model.

Course Syllabus

Module -I: INTRODUCTION

Fundamentals of photogrammetry and aerial photography; History, aerial cameras, aerial films and processing. Types of aerial photos. Fundamentals and geometry of aerial photographs, Scale, Advantages and disadvantages of small scale and large-scale aerial photographs.

Practice:

1. Scale determination from aerial photo

2. Aerial photo Interpretation

Module - II: CONCEPT of PHOTOGRAMMETRY

Introduction,Terrestrial and Aerial photographs; vertical and oblique photographs, height determination contouring, photographic interpretations, stereoscopy, parallax bar, Flight Planning, Photo Interpretation, Applications of aerial Photos, Photo theodolite.

Practice:

1. Use of Parallax bar and determination of Height from stereo pair

2. Satellite DEM and ortho Image generation

Module - III: DIGITAL PHOTOGRAMMETRY & ITS COMPONENTS

Digital Cameras ; CCD Camera, Full frame CCD Frame transfer CCD, CCD cameras 1 with piezo shift, Interline transfer CCD, Time delay integration CCD sensor; Spectral Sensitivity of CCD sensor, Geometric problems of CCD images, line jitter, blooming, warm up effect, tailing, Typical CCD systems.

Practice:

1. Primary and additive colour creation

2. Stereo test

Module – IV: RELIEF AND TILT DISPLACEMENTS

Mosaics and types of mosaics, stereoscopic vision and stereoscopes, image displacement due to relief, concepts of stereo-photogrammetry, normal vision, depth perception and vertical exaggeration.

Practice:

1. Mosaic

2. Stereoscopic vision

3. Relief displacement

Module – VI: DRONE SURVEY

Aerial mapping and modelling using drone; types of mapping, types of mapping product, mapping for agriculture, mapping for Construction, Autonomous flight planning, Waypoints, collecting nadir imagery for 2D mapping, Collecting oblique imagery for 3d mapping, Volumetric measurements, map accuracy, ground truthing, ground control points.

Practice:

1. Aerial mapping using DRONE

2. Mosaicking of aerial Photo

3. Correction and rectification

Session Plan

Session 1

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Session 2

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Case Studies

Case Studies