公开(公告)号：US20210166020A1

公开(公告)日：2021-06-03

申请号：US17153967

申请日：2021-01-21

Applicant: SOUTHEAST UNIVERSITY

Inventor： Zhe LI ,  Yukun HE ,  Yuning CHENG ,  Xiang ZHOU ,  Kaiyu ZHAO ,  Xiao HAN ,  Feifei CHEN ,  Shuang SONG ,  Xinyi LU ,  Xiaoshan LIN

IPC: G06K9/00 ,  G06T7/174

Abstract: The present invention discloses a method and an apparatus for extracting mountain landscape buildings based on high-resolution remote sensing images. The method comprises: segmenting a remote sensing image, and extracting non-vegetation areas from the remote sensing image by using NDVI; segmenting the non-vegetation areas, and extracting building areas by using NDBI; segmenting the building areas again, and calculating a normalized difference build shadow index NSBI of each patch; calculating NSBI separator of each patch in the non-vegetation areas and setting a separator threshold, and extracting landscape building areas based on the threshold. In the present invention, by introducing a near infrared band in the remote sensing image spectrum, in which there is a significant difference between shadows and non-shadows, the influence of large shadow areas in mountainous shady areas in the remote sensing image on the result of extraction is reduced.