Extraction of Signi cant Terrain Features from RSG and TIN: A Survey

نویسنده

  • Viviana Mascardi
چکیده

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A Study of Three-dimensional Spatial Entity Modeling

In order to really reflect the objective world on which the mankind depends by computers, this article first gives analysis on various kinds of terrain models such as contour line, TIN and RSG by choosing the methods integrating TIN data model with RSG, and smoothing the intersection to make a lifelike reconstruction of real terrain characteristics; secondly it gives analysis on the method of b...

متن کامل

Morse-Smale Decompositions for Modeling Terrain Knowledge

In this paper, we describe, analyze and compare techniques for extracting spatial knowledge from a terrain model. Specifically, we investigate techniques for extracting a morphological representation from a terrain model based on an approximation of a Morse-Smale complex. A Morse-Smale complex defines a decomposition of a topographic surface into regions with vertices at the critical points and...

متن کامل

Trace determination and separation of tin (II) by floatation-spectrophotometric using kalmagyte and CTAB

ABSTRACTA novel floatation-spectrophotometric extraction method was developed for the recovery of tin (II) from aqueous samples prior to determination by UV spectrophotometric detection. The method is based on the formation of a complex between tin (II) and kalmagyte in pH=8. The complex is floated in the interface of n-hexane and aqueous phases. After removing the aqueous phase, the floated pa...

متن کامل

[Submitted to Water Resources Research] Persistence of Topographic Controls on the Spatial Distribution of Snow in Rugged Mountain Terrain, Colorado, USA

We model the spatial distribution of snow depth across a wind-dominated alpine basin using a geostatistical approach with a complex variable mean. Snow depth surveys were conducted at maximum accumulation from 1997 through 2003 in the 2.3-km2 Green Lakes Valley (GLV) watershed in Colorado. We model snow depth as a random function that can be decomposed into a deterministic trend and a stochasti...

متن کامل

Building Extraction and Reconstruction from Lidar Data

This paper presents an approach for building extraction and reconstruction from high quality terrain surface, such as LIDAR data generated surface. The approach takes terrain surface data as input and goes through edge detection, edge classification, building points extraction, TIN model generation, and building reconstruction to extract and reconstruct buildings and building related informatio...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 1998