Aerial Image Scaling and Mensuration Training

Learning Outcomes

• Apply principles of photogrammetry to scale vertical and oblique aerial images.
• Analyze image geometry to determine scale and correct for distortions.
• Implement mensuration techniques to extract accurate distances, areas, and heights from aerial images.
• Evaluate the accuracy of measurements derived from different image types.
• Demonstrate the use of scaling factors and measurement tools in practical scenarios.
• Design a workflow for integrating scaled aerial image data into GIS projects.

Target Audience

This course is designed for GIS technicians, surveyors, cartographers, and professionals working with aerial imagery in fields such as urban planning, agriculture, and environmental management.

Prerequisites

None — open enrollment. However, familiarity with basic mathematics and geographic concepts is beneficial.

Course Outline

Practicals

Overview

Hands-on practicals are integral to this course, allowing learners to apply scaling and mensuration techniques using actual aerial imagery and industry-standard software. These sessions reinforce theoretical concepts and develop proficiency in measurement, orthorectification, and quality assurance workflows.

Practical Activities

• Practical 1: Basic Measurements on Orthophotos — Learners use GIS software to measure distances, areas, and perimeters on provided orthophotos, applying scale conversions to obtain ground distances. (3h)
• Practical 2: Orthorectification with GCPs — Using a set of raw aerial images and GCP coordinates, learners perform orthorectification in photogrammetry software and assess output accuracy. (4h)
• Practical 3: Height and Volume Estimation — Learners estimate building heights from relief displacement and calculate cut/fill volumes from DSMs for a small quarry site. (4h)
• Practical 4: Application-Specific Mensuration — Working on an agricultural case study, learners measure field boundaries, calculate NDVI, and assess vegetation health from multispectral imagery. (4h)

Summatives

Each delegate is assessed continuously throughout the course via daily exercises, scored practical assignments, and a final summative test at the end.

Practical Assignments — 30%

Practical assignments are observed and scored against a rubric during the practical sessions. Each delegate's practical mark is averaged into a single 100% score and contributes 30% to the final total.

Daily Exercises — 20%

Every training day ends with a multiple-choice exercise scored out of 100%. The scores from each daily exercise are averaged across the duration of the course to produce a Daily Average mark, which contributes 20% to the final total.

Final Test — 50%

On the last day a final summative test is written. It is a multiple-choice paper with multiple-answer questions: each question may have more than one correct option, and a single wrong selection on a question marks the entire question wrong — no partial credit. The final test is scored out of 100% and contributes 50% to the overall mark.

Final Total

Component	Out of	Weight
Practical Assignments (rubric-scored)	100%	30%
Daily Average (multiple choice)	100%	20%
Final Test (multi-answer multiple choice)	100%	50%
Final Total	—	100%

All marks are recorded on the AATICD LMS and visible to each learner under their account.

Certificate

How it works

• Certificates are auto-generated on the AATICD LMS as soon as the marks pass the 50% threshold.
• Each certificate is a branded PDF with the delegate's name, the course title, the unit standard ID, NQF level, credits, and the date of issue.
• You can download or print your certificate from your LMS dashboard at any time after issue — there's no reissue fee and no expiry date.
• If you scored under 50% you can sit the final test again at the next scheduled session at no extra cost.

Where to find it

Sign in to the LMS, open your dashboard, and your certificates appear under My Certificates. Each entry has a View / Download button and a print option.

Training Discounts

Group discounts apply automatically — the more delegates you enrol, the greater the saving. Discounts are calculated at 3% per 5 delegates, scaling up to 40% off for 100+ delegates.

Delegates	Discount
5	3% off
10	6% off
15	9% off
20	12% off
25	15% off
30	18% off
50	30% off
75	35% off
100	40% off

3% discount per 5 delegates, up to 40% off for 100+ delegates. Contact us for a custom group quote.