In the robotic visual servo system based on the position, it is need to build an image Jacobian which transforms two-dimensional image information to three-dimensional coordinate information.
在基于位置的视觉伺服中，需要建立将二维图像信息转换为三维坐标信息的图像雅可比矩阵。
Our analysis shows that directional wavelet transforms can better reflect the edge information of images because they better corresponds to the characteristics of image direction and texture.
比较了方向小波变换和传统小波变换在图像边缘检测中的不同之处。分析得出方向小波变换更符合图像的方向、纹理特征，因而更能反映图像的边缘信息。
A random unlikeness chaotic sequence is created with random function. Mirror image transforms with this chaotic sequence, then the information is transformed to secret-code files by this sequence.
首先由随机函数生成得到任意的不相等的混沌序列，以此序列作镜像变换后对信息进行置换而得到加密文件。
A random unlikeness chaotic sequence is created with random function. Mirror image transforms with this chaotic sequence, then the information is transformed to secret-code files by this sequence.
首先由随机函数生成得到任意的不相等的混沌序列，以此序列作镜像变换后对信息进行置换而得到加密文件。
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