scholarly journals Extraction of Terrain Feature Lines from Elevation Contours Using a Directed Adjacent Relation Tree

2018 ◽  
Vol 7 (5) ◽  
pp. 163
Author(s):  
Chengming Li ◽  
Peipei Guo ◽  
Pengda Wu ◽  
Xiaoli Liu
Keyword(s):  
Feature Lines ◽  
Adjacent Relation ◽  
Terrain Feature

Progressive Contours Simplification Approach Constrained by Terrain Feature

2014 ◽  
Vol 668-669 ◽  
pp. 1162-1165
Author(s):  
Zu Qiao Yang ◽  
Hong Sheng Li
Keyword(s):  
Experimental Results ◽  
Feature Points ◽  
Control Variables ◽  
Feature Lines ◽  
Terrain Feature

To maintain terrain details during contour group simplification, a progressive simplification approach is proposed. First, terrain feature points and lines are extracted from contours. Second, both the extracted terrain feature points and lines are taken as constraints and quantified as control variables. At last with the idea of progressive graphics simplification, the non-feature points, feature points, feature lines and their associated curves on contours are selected or deleted progressively to realize dynamic simplification of contours. Experimental results show that this approach can effectively improve the intellectualized degree of contours simplification.

Symmetry Detection Using Feature Lines

2009 ◽  
Vol 28 (2) ◽  
pp. 697-706 ◽  
Author(s):  
M. Bokeloh ◽  
A. Berner ◽  
M. Wand ◽  
H.-P. Seidel ◽  
A. Schilling
Keyword(s):  
Symmetry Detection ◽  
Feature Lines

scholarly journals Sketch Based Image Deformation and Editing with Guaranteed Feature Correspondence

2012 ◽  
Vol 11 (1) ◽  
pp. 25-32
Author(s):  
Yaqiong Liu ◽  
Seah Hock Soon ◽  
Ying He ◽  
Juncong Lin ◽  
Jiazhi Xia
Keyword(s):  
Unit Circle ◽  
Delaunay Triangulation ◽  
Shape Deformation ◽  
Feature Correspondence ◽  
Good Correspondence ◽  
Image Deformation ◽  
Target Shape ◽  
Feature Lines ◽  
Complex Shapes ◽  
Correspondence Mapping

The establishment of a good correspondence mapping is a key issue in planar animations such as image morphing and deformation. In this paper, we present a novel mapping framework for animation of complex shapes. We firstly let the user extract the outlines of the interested object and target interested area from the input images and specify some optional feature lines, and then we generate a sparse delaunay triangulation mesh taking the outlines and the feature lines of the source shape as constraints. Then we copy the topology from the source shape to the target shape to construct a valid triangulation in the target shape. After that, each triangle of this triangular mesh is further segmented into a dense mesh patch. Each mesh patch is parameterized onto a unit circle domain. With such parametrization, we can easily construct a correspondence mapping between the source patches and the corresponding target patches. Our framework can work well for various applications such as shape deformation and morphing. Pleasing results generated by our framework show that the framework works well.

scholarly journals Waikīkī: A paradisiac‐parasitic pacific paradise

2021 ◽  
Vol 2 (1) ◽  
pp. 2.1-2.12
Author(s):  
Daniel Kauwila Mahi
Keyword(s):  
Hip Hop ◽  
The People ◽  
Feature Lines ◽  
The World ◽  
Hip Hop Music ◽  
The Way

Waikīkī is a world-renowned leisure destination; at least, that is the image flung vehemently around the world about Hawaii. This framing of Hawaii as paradisiac is parasitic, it eats away and denigrates the enduring relationship that Hawaii the land and the people have. During the COVID-19 pandemic, we have seen a shift in the way our home feels. Tourism, a self-proclaimed necessity of Hawaii’s economy, was not only put on hold, it was essentially eliminated. Through this project I would like to present pre/post-colonialist modalities of Hawaii, to contest and disarm this space densely affected by militourism. Hawaii has been framed as a leisure destination first by colonialists and much later by hip hop music. My approach to contesting these projections is to refuse this notion and feature lines from songs, chants and prayers related to Waikīkī which are pre/postcolonial and have been influenced by colonialism through hip hop.

Sand Mountain

2018 ◽  
pp. 342-378
Author(s):  
William Glenn Robertson
Keyword(s):  
Tennessee River ◽  
Army Of Tennessee ◽  
Terrain Feature

This chapter describes both the completion of and collapse of the Bridgeport bridge, throwing William Rosecrans’s timetable for the advance of the Army of the Cumberland beyond the Tennessee River into serious disarray. Unaware of Rosecrans’s logistical problems, Braxton Bragg continued to concentrate the Army of Tennessee at Chattanooga for offensive movement. While Bragg pondered his options, units of the Army of the Cumberland crossed another major terrain feature, Sand Mountain, and headed for the next obstacle, Lookout Mountain. A Federal crossing of Lookout Mountain would effectively outflank Bragg in Chattanooga.

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