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Closed-Form Solution of Space Resection Using Unit Quaternion
Photgrammetry Algorithm Unit Quaternion Rotation Matrix Space Resection
2015/12/8
Determining exterior orientation parameters (EOPs) of image is an important task in photogrammetry, and various classical methods are in use. On consideration of some shortcomings in classical methods...
Triangulation of Airborne Three-Line Images Using Unit Quaternion
Triangulation three-line quaternion spherical linear interpolation attitude orientation image
2015/11/23
In this paper the unit quaternion is used as a substitute for describing the attitude of a camera to overcome the shortcomings of Euler angles on the description and interpolation of orientation, corr...
A Quaternion based Rigorous sensor model for Quickbird with only one Ground Control point
Rigorous sensor model Ground Control point
2015/8/31
The basic image product of Quickbird PAN data contains information about satellite
position, velocity and orientation information together with interior orientation
parameters. The model utilizes th...
A Gyro-Free Quaternion-Based Attitude Determination System Suitable for Implementation Using Low Cost Sensors
Gyro-Free Quaternion-Based Attitude Determination System Low Cost Sensors
2015/6/29
The time varying Kalman Filter implementation of this algorithm is exercised on simulated and real data collected from an inexpensive triad of accelerometers and magnetometers.
提出一种的简单快速的多通道Gabor滤波技术对彩色纹理进行分割。首先,通过DRBFT和IDRBFT对彩色纹理的进行多通道Gabor滤波,再运用PCA对滤波得到的特征向量进行降维,对降维后的特征向量进行k-mean聚类,最后再对聚类后的区域用mean shift进行平滑,通过对平滑后的区域进行边缘检测就可以得到不同纹理的边界。最后给出几种分割算法的实验结果比较,表明该算法对于分割彩色纹理还是非常有效...
基于倍四元数和Groebner基的6R机械手的位置反解（Qeneral 6R Robot Inverse Solution Based on Double Quaternion and Groebner Base）
6R机械手 倍四元数 Groebner基
2009/5/22
提出了一般6R机械手的位置反解的新算法，该算法是把齐次变换矩阵转以倍四元数形式表示，建立了倍四元数形式的串联6R机械手运动学方程，再通过线性消元和两次应用分次字典序Groebner基消去5个变元，得到一个一元16次方程。此方法没有增根，是一种对空间任意尺寸6R机械手进行建模和求解的新算法。其中求解Groebner基采用了计算机代数系统进行有理数运算，目前的求解速度尚不是很高，需进一步改进。