实现USB采集的图像序列或者视频中人脸检测与计数，应用OPENCV实现-Image sequence to achieve USB or video capture human face detection and counting, the application to achieve OPENCV

usb摄像头的读取和视频的播放和暂停 图像的边缘检测和移动检测 利用opencv和vs2010-read usb camera and video playback and pause image edge detection and motion detection using opencv and vs2010

基于qt的利用qdbus接收hal的消息，检测U盘插入，可以分辨出是u盘还是硬盘、分区、usb。整个程序比较完善。-Based on the qt use qdbus receive hal message, detect U disk inserted, can tell u disk or hard disk partition, usb. The entire procedure is complete.