Prior-knowledge-based single-tree extraction
Prior-knowledge-based single-tree extraction
复制标题
基于先验知识的单树提取
DOI:
10.1080/01431161.2010.494633
复制
发表时间:
2011
影响因子:
3.4
通讯作者:
Weinacker
中科院分区:
文献类型:
--
作者:
Heinzel;Weinacker
The automatic extraction of single trees from remotely sensed data is approached in numerous studies, but results are still insufficient in areas of dense temperate forest. Common watershed-based algorithms using digital surface models tend to produce erroneous results in difficult constellations because the treetop determination lacks an exact criterion for smoothing. In this article, a new approach is introduced that classifies crown size in advance and uses this information as prior knowledge for single-tree extraction. Crown size is classified from texture with an improved grey-scale granulometry followed by a crown size adapted watershed segmentation of single trees. The method is applied on a large area of 10 km2and verified on six reference plots reflecting diverse and difficult compositions. The accuracy varies between 64% and 88%, and shows an average improvement of about 30% for deciduous and mixed stands compared to a non-crown-size-dependent algorithm.
登录
查看更多内容
DOI:
--
发表时间:
2004
期刊:
影响因子:
--
作者:
M. Heurich;A. Persson;J. Holmgren;E. Kennel
通讯作者:
E. Kennel
DOI:
--
发表时间:
2007
期刊:
影响因子:
--
作者:
Yunshen Wang;H. Weinacker;B. Koch
通讯作者:
B. Koch
影响因子:
2.6
作者:
Demin Wang;V. Haese;A. Bruno;J. Ronsin
通讯作者:
J. Ronsin
影响因子:
7.7
作者:
M. E. Díaz;G. Ayala;R. Sebastián;L. Martínez
通讯作者:
L. Martínez
DOI:
--
发表时间:
2007
期刊:
International Conference on Computer Analysis of Images and Patterns
影响因子:
--
作者:
S. Lefèvre
通讯作者:
S. Lefèvre