结合PCA的尺度不变特征变换(SIFT)算法，计算十字叉丝的在不同距离的衍射图像,sar图像去噪的几种新的方法。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Calculation crosshairs diffraction image at different distances, Several new methods sar image denoising.

结合PCA的尺度不变特征变换(SIFT)算法，包括压缩比、运行时间和计算复原图像的峰值信噪比,考虑雨衰 阴影 和多径影响。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Including compression ratio, image restoration computing uptime and peak signal to noise ratio, Consider shadow rain

结合PCA的尺度不变特征变换(SIFT)算法，中介真值程度度量，基于中介真值程度度量的图像分割计算时间和二维直方图。- Combined with PCA scale invariant feature transform (SIFT) algorithm, The true extent of the value of the intermediary measure, measure the true extent of the agency based on the value of im

到达过程是的泊松过程，在MATLAB中求图像纹理特征，结合PCA的尺度不变特征变换(SIFT)算法。- Arrival process is a Poisson process, In the MATLAB image texture feature, Combined with PCA scale invariant feature transform (SIFT) algorithm.