公开(公告)号：US11893685B2

公开(公告)日：2024-02-06

申请号：US17755172

申请日：2021-11-17

Applicant: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.

Inventor： Junjun Zhang ,  Yi Zeng ,  Xiaopei Hou

IPC: G06T17/05 ,  G06V10/764 ,  G06V10/46 ,  G06T3/40 ,  G06T5/50

CPC classification number: G06T17/05 ,  G06T3/40 ,  G06T5/50 ,  G06V10/46 ,  G06V10/764 ,  G06T2207/20221

Abstract: The present disclosure provides a landform map building method and apparatus, an electronic device and a readable storage medium, and relates to the field of image processing technologies. The method for building landform map includes: acquiring a to-be-processed image to obtain a grayscale image of the to-be-processed image; classifying pixels in the grayscale image according to grayscale values to obtain binary images corresponding to different landform categories; extracting image spot contours of image spots in the binary images, and taking the extracted image spot contours as vector graphs to obtain a vector graph set; merging, according to position information, the vector graphs corresponding to a same landform category in the vector graph set, and obtaining a first landform map according to merging results corresponding to different landform categories; and mapping, by using a preset landform type, the vector graphs corresponding to different landform categories in the first landform map, and taking a mapping result as a second landform map.