A Method of Automatic Eaves Height Determination for Buildings in 2D Digital Line Graph

ZHENG Shunyi; GUI Li; WANG Xiaonan

doi:10.13203/j.whugis20140126

Volume 41 Issue 5

May 2016

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Geomatics and Information Science of Wuhan University > 2016 > 41(5): 584-589,611. > DOI: 10.13203/j.whugis20140126

ZHENG Shunyi, GUI Li, WANG Xiaonan. A Method of Automatic Eaves Height Determination for Buildings in 2D Digital Line Graph[J]. Geomatics and Information Science of Wuhan University, 2016, 41(5): 584-589,611. DOI: 10.13203/j.whugis20140126

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A Method of Automatic Eaves Height Determination for Buildings in 2D Digital Line Graph

1.
School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430079, China;
2.
Collaborative Innovation Center of Geospatial Technology, Wuhan 430079, China

Funds: The National Natural Science Foundation of China, No. 41171357.

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Received Date: January 11, 2015
Published Date: May 04, 2016

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Abstract

Abstract

In order to better meet the demand of automatically determining the precise eave height of buildings in the construction of Smart City models, a method of initial eave height determination is proposed based on the maximum edge information, Edge Images, and 2D DLG (digital line graph) overlays of the position of eaves, to determine precise eave height through generalized point photogrammetry iteration. Experiments show that this method delivers eave height automatically for buildings in 2D DLG, with a decimeter accuracy. It provides a method for 3D DLG production, and contributes to the development and progress of technologies such as 3D building reconstruction, and automatic man-made objects extraction.
- 2D digital line graph,
- eaves height,
- generalized point photogrammetry,
- 3D digital line graph,
- 3D reconstruction

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