A digital watermarking algorithm against geometric distortion based on IFS;
一种抗几何形变的数字水印方法的研究
Then by comparing the Euclidean distance of these invariant moments,the initial feature points pairs are extracted,and the spurious feature points pairs are by eliminated by geometric transform model.
利用Harris角检测器获取图像中的兴趣点,计算兴趣点邻域的平移、旋转及尺度不变矩,通过比较各兴趣点邻域不变矩的欧式距离提取出初始特征点对,根据几何变换模型剔除伪特征对,最后利用正确映射模型实现图像的拼接。
The following article content is about how to identify the direction of the movement and use geometric transformation to dispose it.
对非水平方向上的运动来说,就要对运动图像进行预处理,将其转换到水平方向上,介绍如何对运动方向进行识别及利用几何变换对图像进行处理的过程。
This variable geometry design was testified to be a feasible way to accomplish the entrance opening process of the inlet.
通过对进气道壁面静压变化和捕获流量的测量,验证了此种具有开启功能的变几何方案的可行性。
Due to the variable geometry construction of the compressors,the most troublesome part in the development of a component-based gas turbine simulation system is the performance characteristics estimation of the compressors at low rotational speeds.
由于涉及到变几何工况,燃气轮机系统仿真中压气机低转速工况特性计算最为困难,计算压气机的变几何特性具有重要的意义。
Based on the comprehensive characteristic curves of compressor stages and by using a stage-by-stage superposition method,the authors have developed a model for the prediction of the full-load-operation performance of a variable geometry multistage axial compressor incorporating adjustable stationary blades.
基于压气机级的综合特性曲线,采用逐级叠加法开发了静叶可调的变几何多级轴流压气机全工况性能预测模型。
Detection and correction of geometric distortion in image displaying system;
图像显示系统几何畸变的测量及校正
A digital method for the correction of geometric distortion in scanned image;
一种扫描图像几何畸变的数字校正方法
Correction of the geometric distortion to image defect detection;
探伤图像的几何畸变校正方法
Influence of Centrifugal Blade Deformation on Impeller Aerodynamic Performance
离心叶轮几何形变对气动性能的影响
A Robust Feature Extraction Arithmetic to Geometric Distortions for Texture Image;
一种抗几何形变的纹理特征提取算法研究
Research on Medical Image Segmentation Based on Geometric Deformable Model;
基于几何形变模型的医学图像分割方法研究
Research on Geometric Calculation and Deformation of 3D Craniofacial Model;
三维颅面模型的几何计算与变形研究
3D model deformation and editing based on geometric feature
基于几何特征的三维模型变形与编辑
Discussion about GCL for Deforming Grids
关于变形网格“几何守恒律”概念的讨论
Accurate Algorithm for Geometrically Large Deflection Analysis of Truss Structures
桁架结构几何大变形分析的精确方法
Thus the distortion in the geometry of the deformed structure will be exaggerated.
这样，变形结构中几何形状的失真将得以放大。
Geometry Representation Method of Airfoil Based on Free Form Deformation
应用自由变形法的翼型几何外形参数化研究
The Mathematic Model of Workpiece Deformation Region of Cross Wedge Rolling
楔横轧轧件变形区几何形状的数学模型
Discrete Optimum Design of Truss Structure Undergoing Large Geometric Deformation;
几何大变形桁架结构离散变量优化设计
Research and Simulation for Elastic Deformation of Linkages
基于CAD变量几何法的机构弹性变形分析与模拟
Distortion Image Corrections Based on Rectangular Corner Geometric Transform
基于矩形角点几何变换的畸变图像校正
By the laws of geometry we can find the displaced joint positions.
由几何定律可以求出变形后的节点位置。
A MIXED FINITE ELEMENT METHOD FOR LARGE DEFORMATION ANALYSIS OF CABLE DOME STRUCTURES
拉索穹顶结构几何大变形混合有限元静力分析
Research and Application on Constrained Curve Surface Geometric Deformation Based on Metaball;
基于Metaball约束的曲面几何变形研究及应用
Errors Syncretizing of Primitive Geometry and Thermal Deformation and Its Reality on the Virtual Turning;
虚拟车削系统中几何、热变形误差融合及实现
Analysis of Arcing Fault of Transmission Line Based on Fractal and Wavelet Transform;
基于分形几何和小波变换的弧光故障研究