1) ridge line
山脊线
1.
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
2.
A ridge line extraction algorithm is proposed based on DEM according to the characteristic of the terrain,firstly,the algorithm fills depressions and smoothes the terrain efficiently,then extracts the ridge line and thins it,lastly,the main ridge line is extracted to meet the requirement of the occlusion culling.
针对大规模复杂地形的特点,提出了一种有效的基于规则网格的地形主山脊线特征提取算法。
3.
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。
2) ridge
[英][rɪdʒ] [美][rɪdʒ]
山脊线
1.
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
2.
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
3.
The authors put forwards a new method which select the terrain profile perpendicular to falling line (opposite direction of gradient) to determine the candidate points on ridge and valley.
提出了一种基于地形梯度方向的山脊线和山谷线的提取方法,该方法从理论上进一步完善了地形高程断面极值法。
3) Fire proof belt of ridge
山脊防火线
4) beaded linear ridge
线形连珠山脊
5) ridge
[英][rɪdʒ] [美][rɪdʒ]
山脊
1.
Study on the simplified model of wind farm in the ridge;
山脊地形上的风场简化模型
2.
Further,give the mathematical definition of basic lardform shape as the slope,mountain,ridge,depression,groge,saddle,etc.
继而给出了如斜坡、山、山脊、凹地、谷地、鞍部等基本地貌形态的数学定义。
6) ridge
[英][rɪdʒ] [美][rɪdʒ]
脊线
1.
Aiming at the shortage of wavelet transform in extracting in-pulse features from FSK signal,a united time-frequency analyse method combined with time-frequency reassignment and time-frequency ridge is introduced.
针对小波变换法在提取频率编码信号脉内特征中的不足,提出了将时频重排和时频脊线相结合的时频联合分析方法。
2.
Aiming at the poor SNR performance of wavelet-ridge in extracting in-pulse features,an novel unite method for-frequency analysis is proposed.
针对小波脊线法在提取雷达信号脉内特征时信噪比性能较差的缺点,本文基于小波变换谱,将时频重排和时频脊线相结合,提出了一种新的时频联合分析方法。
3.
Gabor wavelet spectrogram is reassigned to extract Time-frequency ridge.
通过对非线性结构响应的Gabor小波谱进行重排,从中提取出反映系统频率的时频脊线,由脊线得到非线性结构的瞬时频率和幅值,进而识别出结构响应信号的骨架曲线。
补充资料：山脊
1.山的高处象兽类脊骨似的隆起部分。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条