Training Kit on Participatory Spatial Information Management and Communication. CTA/IFAD

Module M10 - Participatory 3D Modelling

Unit M10U04 - Capturing Data from a 3D Model and Georeferencing them

Introduction

This Unit orients trainees about the process of extracting data from a three-dimensional (3D) model by using digital photography and preparing that data for import into a Geographic Information System (GIS) environment by georeferencing.

Data on a 3D model can be captured and transferred to a GIS. While transferring the data from one medium to the other, it is important to minimise data loss or erroneous georeferencing. Those who extract the data should be fully familiar with the attributes described in the map legend (i.e. the scale, symbols and associated descriptions).

Unit objectives / expected outcomes

After the completion of the Unit the trainee will be able to:

  • describe how to extract data from a 3D model using digital photography;
  • describe how to georeference photographs.

Content outline, main topics covered and suggested sequencing

This Unit focuses on the topics listed below:

  1. Data capture via digital photography (PPT No. 1 including Q&A opportunities) (40 min)
  2. Georeferencing of photographs (PPT No. 2; including Q&A opportunities) (50 min); followed by (Q&A session) (10 min)

Keywords / key concepts

Data, data extraction, digital photography, georeferencing, on-screen digitising

Components of the Unit

Handouts for Trainee (to be distributed in printed format):

Handouts for Trainee (to be distributed in digital format)

Presentations

Duration

1 hr and 30 min

Additional trainer resources

Equipment needed

Computer and beamer

Additional downloads


Source: CTA. 2010. Training Kit on Participatory Spatial Information Management and Communication. CTA, The Netherlands and IFAD, Italy (ISBN: 978-92-9081-446-7)