Positioning method and device

• Main Authors: DUAN WENBO, LI JUN, YI CHAO, LIU LIANGDONG, ZHANG XIN, LI RONGBIN, CHEN LANWEN, JU MENGJIE, LUO ZHAOLONG, NIE CHANG, HONG ZHI, YU LONGGUANGRUI, SU XIAOMENG, SONG ZEMING, GUO XIAOWEI, WANG HAO, LI YOUBO, YANG MENG, LI JUAN, HU WEI, PENG ZEYANG, WU XUDONG, LIU LUGANG, JIANG QI, WANG YUANBAO, HE JIE, WANG WENQI
• Format: Patent
• Language: Chinese; English
• Published: 02.05.2023
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; PHYSICS

The invention provides a positioning method and device, and is applied to the technical field of image recognition positioning, and the method comprises the steps: obtaining a first panorama in a target positioning region shot by a camera, and carrying out the image preprocessing operation of the first panorama, and obtaining a second panorama; performing multi-scale feature extraction on the second panorama to obtain a multi-scale feature map; carrying out feature map framing on the multi-scale feature map to obtain a framed feature map; performing non-maximum suppression on the framing feature map to obtain a target ship map; and when the target ship category in the target ship graph is a preset ship category, determining the position of the target ship. According to the method, multi-scale feature extraction is carried out on the second panorama of the target positioning area, the target ship image is finally obtained, the image precision of the target ship image is improved, and therefore the accuracy of