Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction
A topology adaptive snake (T-Snake) model based on orthogonal grids is introduced and improved in this paper, and a proper energy function is designed. A detection and handling mechanism for topological conflict that caused by island shaped hollow is proposed in the model, and therefore accurate ext...
Main Authors: | , |
---|---|
Format: | Article |
Language: | zho |
Published: |
Surveying and Mapping Press
2015-06-01
|
Series: | Acta Geodaetica et Cartographica Sinica |
Subjects: | |
Online Access: | http://html.rhhz.net/CHXB/html/2015-6-670.htm |
id |
doaj-36d54e8fb8c64b7ea23923055a65a45b |
---|---|
record_format |
Article |
spelling |
doaj-36d54e8fb8c64b7ea23923055a65a45b2020-11-25T01:58:24ZzhoSurveying and Mapping PressActa Geodaetica et Cartographica Sinica1001-15951001-15952015-06-0144667067710.11947/j.AGCS.2015.2014040420150611Improved Orthogonal T-Snake Model for Complex Water Boundary ExtractionMENG LingkuiLÜ QifeiA topology adaptive snake (T-Snake) model based on orthogonal grids is introduced and improved in this paper, and a proper energy function is designed. A detection and handling mechanism for topological conflict that caused by island shaped hollow is proposed in the model, and therefore accurate extraction for complex boundary of river containing river islands is achieved. For the disadvantage of the need to manually construct the initial contour in the orthogonal T-Snake model, using the minimum fractal dimension to obtain one area of the water and automatically generate an initial contour. The experiment shows that the algorithm of this paper can accurately extract the boundary of the complex water which contains deeply concave regions or river islands, and it has higher accuracy and less time cost than classic Snake model and GVF Snake model.http://html.rhhz.net/CHXB/html/2015-6-670.htmtopology adaptive snake (T-Snake)river islandinitial contourfractal dimensionboundary extraction |
collection |
DOAJ |
language |
zho |
format |
Article |
sources |
DOAJ |
author |
MENG Lingkui LÜ Qifei |
spellingShingle |
MENG Lingkui LÜ Qifei Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction Acta Geodaetica et Cartographica Sinica topology adaptive snake (T-Snake) river island initial contour fractal dimension boundary extraction |
author_facet |
MENG Lingkui LÜ Qifei |
author_sort |
MENG Lingkui |
title |
Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction |
title_short |
Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction |
title_full |
Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction |
title_fullStr |
Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction |
title_full_unstemmed |
Improved Orthogonal T-Snake Model for Complex Water Boundary Extraction |
title_sort |
improved orthogonal t-snake model for complex water boundary extraction |
publisher |
Surveying and Mapping Press |
series |
Acta Geodaetica et Cartographica Sinica |
issn |
1001-1595 1001-1595 |
publishDate |
2015-06-01 |
description |
A topology adaptive snake (T-Snake) model based on orthogonal grids is introduced and improved in this paper, and a proper energy function is designed. A detection and handling mechanism for topological conflict that caused by island shaped hollow is proposed in the model, and therefore accurate extraction for complex boundary of river containing river islands is achieved. For the disadvantage of the need to manually construct the initial contour in the orthogonal T-Snake model, using the minimum fractal dimension to obtain one area of the water and automatically generate an initial contour. The experiment shows that the algorithm of this paper can accurately extract the boundary of the complex water which contains deeply concave regions or river islands, and it has higher accuracy and less time cost than classic Snake model and GVF Snake model. |
topic |
topology adaptive snake (T-Snake) river island initial contour fractal dimension boundary extraction |
url |
http://html.rhhz.net/CHXB/html/2015-6-670.htm |
work_keys_str_mv |
AT menglingkui improvedorthogonaltsnakemodelforcomplexwaterboundaryextraction AT l220qifei improvedorthogonaltsnakemodelforcomplexwaterboundaryextraction |
_version_ |
1724969840534355968 |