图像拼接,基于matlab里面特征点匹配的改进算法的程序。-Image matching, the inside of the improved algorithm of feature point matching based on matlab program.

SIFT特征检测算法改进，SIFT描述子加入全局向量，对局部信息相似度高的图像检测的误匹配剔除有明显改进-This paper presents a technique for combining global context with local SIFT information to produce a feature descr iptor that is robust to local appearance ambiguity and non-rigid transformation

粒子图像分割及匹配均为自行编制的子例程，小波包分析提取振动信号中的特征频率，计算目标和海洋回波的功率谱密度。- Particle image segmentation and matching subroutines themselves are prepared, Wavelet packet analysis to extract vibration signal characteristic frequency, Calculating a target and ocean echo po

结合PCA的尺度不变特征变换(SIFT)算法，正确率可以达到98％，粒子图像分割及匹配均为自行编制的子例程。- Combined with PCA scale invariant feature transform (SIFT) algorithm, Accuracy can reach 98 , Particle image segmentation and matching subroutines themselves are prepared.