The Reconnection of Contour Lines from Scanned Color Images of Topographical Maps Based on GPU Implementation.

Jianfeng Song,Panfeng Wang,Qiguang Miao,Ruyi Liu,Bormin Huang

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing（2017）

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摘要

This paper presents a method for the reconnection of contour lines from scanned color images of topographical maps based on graphics processing unit (GPU) implementation. The extraction of contour lines, which are shown with brown color on USGS maps, is a difficult process due to aliasing and false colors induced by the scanning process and due to closely spaced and intersecting/overlapping featur...

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关键词

Graphics processing units,Image color analysis,Color,Lead,Image segmentation,Earth,Remote sensing

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