Analyzing thresholds for 3D reconstruction of rock from CT-scan images
Richa Richa, Tapan Mukerji, Gary Mavko, Shell Exploration · 2008
In present paper we analyze five different thresholding schemes for obtaining the CT scan images of rock to binary images which can be utilized for different property simulation. Riddler's and Otsu's methods gave the maximum classification efficiency for the rock samples used. Sensitivity analysis was conducted to assess the impact of change of thresholds on simulated properties like porosity, permeability and formation factor. It showed a consistency in the inter-relation between different properties for different thresholds.