北京测绘2025，Vol.39Issue(2)：177-182,6.DOI:10.19580/j.cnki.1007-3000.2025.02.009
农村不动产测绘三维激光扫描图像轮廓提取
3D laser scanning image contour extraction for rural real estate surveying and mapping
摘要
Abstract
In order to accurately extract the target contour of rural real estate surveying and mapping images,a three-dimensional(3D)laser scanning image contour extraction method for rural real estate surveying and mapping was studied.3D laser scanning technology was applied to generate rural real estate surveying and mapping images,and an improved two-dimensional(2D)maximum entropy method was used to effectively segment the surveying and mapping images and accurately obtain the target foreground of rural real estate in the images.Gabor wavelet transform was employed to obtain multi-scale features of targets,so as to gain a more comprehensive understanding of their morphology and structure.At the same time,by combining fuzzy mathematics theory,the image texture features were described in depth,and the accurate extraction of target contours was achieved through similarity functions.If there are discontinuous positions in the contour,relabeling is implemented,and fuzzy mathematics theory is used to connect the labels,ultimately obtaining a complete target contour in rural real estate surveying and mapping images.The test results show that the proposed method has an average conformity of over 93.4%and a tolerance rate of less than 2.5%.The extraction results not only have good continuity but also high smoothness,providing strong technical support for rural real estate surveying and mapping.关键词
Gabor小波分析/农村不动产/三维激光扫描/测绘图像/轮廓提取/位置编码Key words
Gabor wavelet analysis/rural real estate/three-dimensional laser scanning/surveying and mapping image/contour extraction/position coding分类
测绘与仪器引用本文复制引用
周志林..农村不动产测绘三维激光扫描图像轮廓提取[J].北京测绘,2025,39(2):177-182,6.基金项目
浙江省资源厅2022科研项目(2022-57) （2022-57）
