Derivation of valley line and ridge line by segmental cubic polynomials;
利用分段三次多项式提取山谷线和山脊线
In order to detect the spatial conflicts that rivers deviate from the valleys in the process of topographic database updating, a new algorithm using the vector projection method to quickly extract the valley lines related to the rivers is proposed.
针对数据更新中常见的河流偏离山谷线这一空间不一致问题,提出了一种基于矢量投影法的快速、准确地提取山谷点的方法,并利用提取出的山谷点来检查与其相关河流的空间关系的一致性;最后利用VB6。
The usual method for extracting ridge line and valley line is based on geometric and physical character which is difficult to use the information hiding in the digital data.
针对当前山脊线和山谷线的提取都是从其几何特征或物理特征的单一方面进行研究和设计,不能够利用隐含在数字化资料中的山脊线和山谷线的有效信息的弊端;本文利用几何分析方法Douglas-Peuker提取山脊线和山谷线的特征点,并结合提取区域内地形概略的分水线和汇水线,用概略的分水线和汇水线对特征点进行识别、归类、顺序提取各条山脊线和山谷线,把山脊线的几何特性与物理特性结合起来,克服了各自的弊端。
Automatic extraction for ridge and valley by vertical sectional method;
垂直剖面法自动提取山脊线和山谷线
Extraction of ridge and valley from DEM based on conjugate terrain;
基于共轭地表曲面的山脊线和山谷线提取方法的研究
Auto-Recognizing Ridge lines and Ravine Linesby Com puter
山脊线与山谷线的计算机自动检测
A New Method for Automatic Extraction of Ridge and Valley Axes from DEM
一种新的山脊线和山谷线自动提取方法
the anticlinal axis [ line, fold, strata, valley ]
背斜轴[线, 褶曲, 层, 谷]
This is the overseas operator in Bangkok, Thailand.
国外接线员: 泰国曼谷长途电话接线员。
The lines and circles are mountains, valleys, and deep holes.
线条和圆圈是山脉、山谷和深坑。
Change to the Yamanote Line at Yoyogi (Station) and go to Shibuya.
在代代木车站换乘山手线到涉谷。
The highest line stands 600 metres from the floor of the valley.
最高的一条线距谷底有600米。
Universal Online Measuring Method of Grain Moisture Content Based on DSP
基于DSP的谷物含水率在线测量方法
Research on Geological Route Selection in Valley Zone between Semai-Dazhuca of Lhasa-Rikaze Railway;
拉日线色麦至大竹卡峡谷地段地质选线研究
Biological effect of ~(60)Co-γ radiation on Echinochloa crusgalli and Pennisetum glaucum
~(60)Co-γ射线诱发谷稗和御谷的辐射生物学效应研究
This a valley seamed with small streams of water.
这是一条被小溪流画出一道道线纹的河谷。
They, too, found warm-water spots along the center of the rift valley.
而且他们发现，沿裂谷中心线也有暖水点。
The second facula curve of HMME dropped promptly to minimum after starting irradiation.
HMME的第二光斑曲线在照射后迅速降至谷底。
Studies on the Factors Affecting the Adsorption and Desorption Isotherms of Rice
稻谷吸附与解吸等温线影响因子的研究
Modeling and On Line Estimation of Glutamic Acid Fermentation Process
谷氨酸发酵过程的模型化和在线估计研究
Primary identification on the resistance of wheat cultivars to CCN
小麦品种(系)对禾谷胞囊线虫抗性的初步鉴定
Effect of γ-ray Irradiation on Drying Characteristics and Qualities of Rice and Wheat;
γ射线辐照对稻谷小麦干燥特性及品质的影响
Research on Real Time Measurement Technology for Grain Moisture Content on Combine Harvester;
联合收割机谷物含水率在线测量技术研究