Master Thesis

Master Thesis name: Extraction and 3D characterization of green features in urban areas from Pléiades image

Supervisor: Assoc.-Prof. Dr. Stefan Lang

Keywords: Pléiades, Support Vector Machine, nDSM, 3D green feature, urban vegetation

Used software for implementation: 

Software
Version
Usage
Envi
IDL 8.3
Radiometric Calibration - TOA Reflectance
Erdas Imagine
2016
Orthorectification and Definition of Projection
eCognition
Developer 9
Image processing, segmentation, classification, accuracy assessment
ArcMap
ArcGIS 10.4
Image clipping, projection
ArcScene
ArcGIS 10.4
3D feature visualization and analyses

Methodology:

 DIGITAL SURFACE MODEL GENERATION METHOD.. 23
 DSM OUTLIERS CLEANING.. 25
 OBJECT BASED IMAGE ANALYSIS METHODOLOGY FOR VEGETATION.. 27
 VEGETATION CLASSIFICATION.. 30
    Spectral signature. 30
    Support Vector Machine algorithm.. 32
    Combination of visual and digital interpretation for shadow removing. 35
ACCURASY ASSESSMENT. 36
    The importance of accuracy assessment and the matter of accuracy error 36
    Required considerations before accuracy assessment 38
    Sampling method. 39
    Accuracy assessment of classification results 40
    Field measurement and visual investigation. 42
ANALYSES ON ARCGIS. 44
    Mapping of third dimension of vegetation with ArcGIS. 44
   Characterization of vegetation on ArcGIS. 45
   The capabilities and limitations of   tree volume estimation. 46
   OBIA approach for tree crown delineation
   Analyses with tree crowns and difference. 50