View/Open - ARAN

Contents
ii
Page
Certificate of Authorship .......................................................................................i
Contents ..................................................................................................................ii
List of Tables ........................................................................................................ iii
List of Figures........................................................................................................iv
Abstract..................................................................................................................vi
1 Project Outline...................................................................................................1
1.1 Project Overview .......................................................................................1
1.2 General Introduction and Background.......................................................8
2 Stepping through the Algorithm....................................................................18
2.1 Initial Inputs.............................................................................................23
2.2 Area Extraction........................................................................................27
2.3 Spectral Value Comparison .....................................................................29
2.4 Confirmation............................................................................................32
3 Sampling for the Baseline Image Key ...........................................................34
3.1 Roads .......................................................................................................35
3.2 Water........................................................................................................42
3.3 Marsh .......................................................................................................49
3.4 Coniferous Forestry .................................................................................55
3.5 Mixed Forestry.........................................................................................61
3.6 Track ........................................................................................................66
3.7 Shade........................................................................................................72
3.8 Roof Areas ...............................................................................................78
3.9 Pasture......................................................................................................86
3.10 Rough Pasture..........................................................................................92
4 Testing ..............................................................................................................98
4.1 Pasture Test..............................................................................................99
4.2 Rough Pasture Test ................................................................................109
4.3 Marsh Test .............................................................................................119
4.4 Bog Test.................................................................................................132
4.5 Conclusion .............................................................................................146
5 Literature Review..........................................................................................148
5.1 Spectral and image considerations for the thesis...................................152
5.2 Vector and polygon based studies of aerial photography......................159
6 References ......................................................................................................167