Transcript
3D Model and Feature Evidence Visualisation in the Integrated Exploration Platform
Jason C. Wong, Eun-Jung Holden, Daniel Wedge, David Nathan, Klaus Gessner, & Ruth Murdie
Geoscientific Data Interpretation Challenges
Large volumes of geoscience data (e.g. collected by the Geological Survey of Western Australia - GSWA). Introduces a time bottleneck as interpretation is timeconsuming, and outcomes are often not consistent within and between individuals. Inattentional blindness is problematic for geological interpretation due to human biases. Introduces subjectiveness as an interpreter is unlikely to identify features that are not expected or looked for. Geological features may appear in subtle contrast to the surrounding. Introduces uncertainty, as features are not easily visible.
Integrated Exploration Platform Overview
A component of a major research initiative between Geological Survey of WA (GSWA) and CET through WA Exploration Incentive Scheme (EIS) phase 2 Australian Research Council (ARC) linkage (LP140100267) Interpretation platform to promote full utilisation of GSWA data for explorers operating in WA: 1.
Visualisation tools to support multiple 2D and 3D data.
2.
Feature evidence – confidence feedback on interpretation lines.
Intelligent support tools for computer-assisted & user-driven interpretation.
Integrated Exploration Platform 1. Visualisation tools to support multiple 2D and 3D data (A suite of image blenders)
Thomas, J., Cook, K.: Illuminating the Path: Research and Development Agenda for Visual Analytics. IEEE-Press (2005)
2. Feature Evidence Analysis – Confidence feedback.
2D Visualization Tools in IEP
Human Perception Sensitive Colour Maps
A default rainbow colour map
Vs
Perception friendly map
2D Visualization Tools in IEP Blenders
Barycentric Triangle Blender Circle Blender
Clique Blender
Linear Blender Bilinear Blender
Kovesi, P. 2012. Phase Preserving Tone Mapping of Non-Photographic High Dynamic Range Images, Digital Image Computing: Techniques and Applications (DICTA), 2012 International Conference on, pp.1-8. [Dynamic Range Compression tool available in the CET Grid Analysis Plugin for Geosoft Oasis Montaj]
Kovesi, P. 2012. Phase Preserving Tone Mapping of Non-Photographic High Dynamic Range Images, Digital Image Computing: Techniques and Applications (DICTA), 2012 International Conference on, pp.1-8. [Dynamic Range Compression tool available in the CET Grid Analysis Plugin for Geosoft Oasis Montaj]
Kovesi, P. 2012. Phase Preserving Tone Mapping of Non-Photographic High Dynamic Range Images, Digital Image Computing: Techniques and Applications (DICTA), 2012 International Conference on, pp.1-8. [Dynamic Range Compression tool available in the CET Grid Analysis Plugin for Geosoft Oasis Montaj]
Kovesi, P. 2012. Phase Preserving Tone Mapping of Non-Photographic High Dynamic Range Images, Digital Image Computing: Techniques and Applications (DICTA), 2012 International Conference on, pp.1-8. [Dynamic Range Compression tool available in the CET Grid Analysis Plugin for Geosoft Oasis Montaj]
3. Kovesi, P. 2012. Phase Preserving Tone Mapping of Non-Photographic High Dynamic Range Images, Digital Image Computing: Techniques and Applications (DICTA), 2012 International Conference on, pp.1-8. [Dynamic Range Compression tool available in the CET Grid Analysis Plugin for Geosoft Oasis Montaj]
2D Visualization Tools in IEP
3D Visualization Tools in IEP
Visualization tools for 2.5D and 3D data, utilizing the concept of interactivity. Prototype visualization combining plan-view and cross-section datasets. Prototype comparison visualization of two 3D volumetric datasets.
3D Visualization Tools in IEP
Cross-section Data Blender
Single Volume Blender: Sphere Data Mode
Dual Volume Blender: Slice Similarity Mode
3D Visualization Tools in IEP
Integrated Exploration Platform 1. Visualisation tools to support multiple 2D and 3D data (A suite of image blenders) Thomas, J., Cook, K.: Illuminating the Path: Research and Development Agenda for Visual Analytics. IEEE-Press (2005)
2. Feature Evidence Analysis – Confidence feedback.
Structural Interpretation of Magnetic Data • For structural interpretation, interpreter seeks discontinuities (edges, ridges, valleys) • CET Grid Analysis extension for Geosoft Oasis Montaj (2010-) GSWA magnetic data (RTP-DRC) from West Kimberley
Ridges (Phase Symmetry)
Magnetic data
Ridges
CET Grid Analysis Extension (for Geosoft Oasis Montaj) http://www.geosoft.com/pinfo/partners/CETgridanalysis.asp
Valleys (Phase Symmetry)
Magnetic data
Valleys
CET Grid Analysis Extension (for Geosoft Oasis Montaj) http://www.geosoft.com/pinfo/partners/CETgridanalysis.asp
Edges (Phase Congruency)
Magnetic data
Edges
CET Grid Analysis Extension (for Geosoft Oasis Montaj) http://www.geosoft.com/pinfo/partners/CETgridanalysis.asp
Checking Feature Evidence on Structure Interpretation using Visualisation
Structure interpretation by Mark Lindsay 2015
Visual feedback on data evidence Quantitative measure of feature evidence
Feature Evidence Visualisation
On-going Development Improved integration and visualisation of MT and seismic data. Improved process of ‘spell checker’ on structural interpretation - using multiple datasets. Introduce lithology interpretation support. Public release in early 2016.
Thank you. Questions?