CISS Departement Research Unit Image Processing (Signal and Image - PowerPoint PPT Presentation

CISS Departement Research Unit Image Processing (Signal and Image Centre) Dr Ir Xavier Neyt Ecole Royale Militaire Signal and Image Centre Brussels Belgium Royal Military Academy -1-

GIS USERS Decision making Database Context information Data fusion Signal Feature Pattern Decision Processing extraction Recognition fusion Feature fusion Royal Military Academy -2-

Raw image processing • Domain – Radar processing Extract data from radar signal – Radar imaging – SAR image rectification – SAR motion compensation High resolution SAR imaging – Polarimetric analysis • Sub-aperture analysis Target detection Royal Military Academy 27 Mar 09 -3-

Radar processing First cyclone image Royal Military Academy 27 Mar 09 -4-

SAR rectification Interferometric SAR Relief Rectified Relief Royal Military Academy 27 Mar 09 -5-

SAR image motion compensation Royal Military Academy 27 Mar 09 -6-

Polarimetric SAR image analysis • L-band full polarimetric SAR image Field with bragg scattering Building with suitable orientation Pauli-RGB Coding : HH+VV HH-VV HV Royal Military Academy 27 Mar 09 -7-

Polarimetric SAR image analysis • Classification isotropy - coherence Coherence Isotropy Incoherent Coherent Isotropic Anisotropic Building Field with bragg scattering Royal Military Academy 27 Mar 09 -8-

Data fusion • Data fusion – Hyperspectral image processing Classification / identification of constituents – Data fusion Danger map – Polarimetric/interferometric radar images Classification Royal Military Academy 27 Mar 09 -9-

Hyperspectral analysis • Antwerp harbour Royal Military Academy 27 Mar 09 -10-

Data fusion Danger map Multispectral images Polarimetric SAR images 29 Nov 2005 11 Royal Military Academy SIC Presentation -11-

Feature extraction/fusion • SAR Image referencing Target detection • Image/database registration Change detection • 3D extraction Change detection Royal Military Academy 27 Mar 09 -12-

Referencing SAR image / map ESAR images ? Royal Military Academy 27 Mar 09 -13-

Referencing: final results ESAR images Royal Military Academy 27 Mar 09 -14-

Image/database Registration SPOT images Map update for the NGI Carte existante Image visible 15 Royal Military Academy SIC Presentation -15-

Change detection Map update for the National Geographic Changes Institute SPOT images 29 Nov 2005 16 Royal Military Academy SIC Presentation -16-

Change detection • Virton (small town in Belgium) Visible image (Aerial image) Image of the disparity (relief) Royal Military Academy 27 Mar 09 -17-

GIS USERS Decision making Database Context information Data fusion Signal Feature Pattern Decision Processing extraction Recognition fusion Feature fusion Royal Military Academy -18-

Backup slides Royal Military Academy -19-

User interface Support to humanitarian demining 29 Nov 2005 20 Royal Military Academy SIC Presentation -20-

Ground Penetrating Radar Deconvolution and SAR synthesis BEMAT Belgian contribution to Mine Action Technologies Metal detector GPR Original image Barbed wire Ground interface PMN mine Royal Military Academy 27 Mar 09 -21-

Referencing SAR image / map Royal Military Academy 27 Mar 09 -22-

Referencing SAR image / map Legend : SAR Map Woods Urban areas Royal Military Academy 27 Mar 09 -23-

Referencing SAR image / map Royal Military Academy 27 Mar 09 -24-