Huan Zhang Cai Meng Xiangzhi Bai Zhaoxi Li Rock-ring detection accuracy improvement in infrared satellite image with sub-pixel edge detection. 729-735 2019 13 IET Image Process. 5 https://doi.org/10.1049/iet-ipr.2018.5126 https://www.wikidata.org/entity/Q128711504 db/journals/iet-ipr/iet-ipr13.html#ZhangMBL19