 |  |  |  |  |
| | |
||||
| GEOL0081-1 | Microscopic Image Analysis | |||||
| ||||||
| Duration : | 15h Th, 15h Pr | |||||
| ||||||
| Credits/ECTS : |
| |||||
| ||||||
| Holder(s) : | Eric Pirard | |||||
| ||||||
| ||||||
| Course contents : | IMAGE ACQUISITION - Imaging sensors Digitisation of video signals Spatial and spectral calibration of images Image file formats (bmp, tiff, jpg,...) Sampling : guidelines towards more representative imaging IMAGE PROCESSING - Image processing operations (global vs. local) Linear filters (low-pass, hi-pass, gradients) Mathematical Morphology (erosion, dilation, opening, closing) Spectral classification tools (thresholding, µgaussian, ...) Geodesic operators and distance functions Spatial segmentation (labelling, hole-fill, watershed, SKIZ,... Introduction to mixed (spectro-spatial) segmentation IMAGE ANALYSIS - Principles of stereology (from 1-D, 2-D to 3-D quantification) Global vs. Individual features analysis. Modal (phase) and porosity analysis Specific surface and pore size distributions ADVANCED IMAGE ANALYSIS - Granulometry (particle size analysis) Morphometry (particle shape analysis) Microstructural and texture analysis | |||||
| ||||||
| Course objective : | To give students a thorough understanding of the techniques available to quantify the content of a digital image. To present the basic image acquisition, filtering and analysis tools with a particular focus on mathematical morphology. To provide students with the opportunity to work on digital images and to develop their critical appreciation on potential applications in material sciences. To provide insight into the available hardwares and softwares | |||||
| ||||||
| Prerequisites : | None | |||||
| ||||||
| Workshops : | TP1 : Overview of commercial equipment. Practice of image acquisition with cameras and scanners. Worked examples in ore microscopy, ornamental stones imaging, field imaging,... TP2 : Practice of image processing operations. Comparative evaluation of image segmentation techniques Worked examples in colour optical microscopy, EDX imaging, sands and powders,... TP3 : Practice of image analysis operations. Practical estimation of volumic fractions within several materials. Worked examples from optical or electronic imaging in ores and sediments TP4 : Practice of a granulo-morphometry software. Estimation of roses of intercepts.Worked examples on sands, abrasives, powders and sedimentary thin sections. | |||||
| ||||||
| Organization : | Theoretical courses of 2 hours. Practical exercises in quantitative microscopy using professional softwares | |||||
| ||||||
| Written notes : | Written documents available in pdf (cf portal) PIRARD E., Introduction générale aux techniques d'imagerie, SIM, 2001. PIRARD, E., 2004, Chapter IV. Image measurements in P. FRANCUS (Ed) "Image analysis, sediments and paleoenvironmental reconstruction", Kluwer, NY | |||||
| ||||||
| Assessment : | Oral examination following a written preparation of 30 minutes. | |||||
| ||||||
| Contacts : | Mlle Nadia ELGARA Secrétariat Dpt GEOMAC B52 Tél. 04/366.37.99 nelgara@ulg.ac.be | |||||
| ||||||
ULg : Students and Studies Administration - Academic Affairs
Contact : Monique Marcourt, direction A.E.E.
Date of data : 27/02/2006
Developed by SEGI