pca-sift经典算法，是Davaid Lower力推荐的算法。可以用于目标跟踪、检测、匹配。

JavaServer Faces promises to bring rapid user-interface development to server-side Java. It allows developers to painlessly write server-side applications without worrying about the complexities of dealing with browsers and Web servers. It also auto

国外大牛写的无线通信基础这本书的答案，很详细，值得无线通信方向的同学学习