TY - Computer Engineering and Applications A1 - LI Mingshan, HAN Qingpeng, ZHANG Tianyu, WANG Daolei T1 - Safety Helmet Detection Method of Improved SSD Y1 - 2021-04-15 JF - Computer Engineering and Applications JO - Computer Engineering and Applications SP - 192 EP - 197 VL - 57 IS - 8 UR - http://cea.ceaj.org N1 - 10.3778/j.issn.1002-8331.2008-0155 ER -