使用opencv，采用肤色原理检测手部位置，有一些噪声，但相对于手部位置比较容易去除。-In this post, as the progress goes, the hand detection technologies using openCV is introduced. As the pictures inllustrated below, this detection method is independent　with distance and background ( just not the background full of hands ), and the main segment method is color abstract which means getting the hand color pixels filtered. As the result tested within several environments, it workd well except slightly noise varying. But the noise is easy to take off.