Perceptual Hash algorithm for GF-2 image using SIFT and SVD
WANG Hao, ZHANG Liming, MU Haowei, ZHANG Xingang, CHEN Jinping
Bulletin of Surveying and Mapping . 2020, (8): 44 -49 .  DOI: 10.13474/j.cnki.11-2246.2020.0246