First Institute of Oceanography, Mnr

Qingdao National Laboratory of Marine Science and Technology Development Center

Chuanshun Li

Shijuan Yan

Yue Hao

Jun Ye

Gang Yang

Zhiwei Zhu

Dewen Du

Xinyu Shi

A method and system for positioning and correcting visual data by seafloor topographic profiles are provided. The method includes: offsetting the water-depth profile of the target survey line equidistantly in a grid layer of a target area to make profiles generated after the offsetting traverse the grid layer of the target area, and obtaining offset data sequences corresponding to the water-depth profile of the target survey line; drawing offset topographic profiles based on offset data of the offset data sequences corresponding to the water-depth profile of the target survey line; calculating a profile similarity between the water-depth profile of the target survey line and each of the offset topographic profiles by using a dynamic time warping (DTW) algorithm; and selecting a geographic location of one of the offset topographic profiles with a largest profile similarity as an actual geographic location of a water-depth profile of a seafloor visual survey line.

Method and system for positioning and correcting visual data by seafloor topographic profiles

Growing community of inventors

Qingdao, China

Chuanshun Li