Unsupervised Detection of Surface Mine Sites using Sentinel Multi-spectral Imagery and Dual-polarimetric SAR Data. - Shashaank M. Aswatha; Vishnu Saini; Jayanta Mukherjee 001; Prabir K. Biswas; Subhas Aikat; Arundhati Misra 001 (ICVGIP, 2018)