说明：  多尺度图像技术指对图像采用多尺度的表达，并在不同尺度下分别进行处理，也称多分辨率技术 金字塔是一种有效的多尺度表达结构 构建高斯金字塔和拉普拉斯金字塔 高斯低通滤波器 对应高斯金字塔中相邻两层图像差的带通滤波器
(Multi-scale imaging technology refers to the image using multi-scale expression, and in different scales, respectively, for processing, also known as multi-resolution technology pyramid is an effective expression of the structure of building a multi-scale Gaussian pyramid and Laplacian pyramid, Gaussian Gaussian low-pass filter corresponding to adjacent two-story pyramid with poor image bandpass filter)