Introduction to Photogrammetry: Using Perspective Analysis to Infer the Trajectory of Incoming Munitions

Table of Contents  Introduction ............................................................................................................................... 6 Background to the Case Study .................................................................................................. 7 Perspective analysis ................................................................................................................ 10 1. Key concept: vanishing points .......................................................................................... 10 2. Locating vanishing points for reference ........................................................................... 11 3. Working with points ......................................................................................................... 13 4. Estimating Dimensions ..................................................................................................... 15 5. Working with geospatial data .......................................................................................... 21 Reverse Perspective Projection .............................................................................................. 23 1. Key concept: picture plane ............................................................................................... 23 2. Locating the viewpoint ..................................................................................................... 23 3. Transferring points ........................................................................................................... 24 4. Transferring more points ................................................................................................. 26 5. Calculating direction from the plan drawing ................................................................... 26 6. Extracting more information from reverse projection and plan drawings ...................... 27 Outcomes and Uncertainties .................................................................................................. 29