Unsupervised Categorization of Forest-Cover Using Multi-Spectral and Hybrid Polarimetric Sar Images. - Shashaank M. Aswatha; Rajeswari Mahapatra; Jayanta Mukhopadhyay; Prabir Kumar Biswas; Subhas Aikat; Arundhati Misra 001 (IGARSS, 2019)