无标识物的增强现实，实时跟踪，具有一定的鲁棒性-This paper addresses the problem of markerless real- time augmented reality (AR). Many different types of sen- sors have been used to achieve this including : GPS, gy- roscopes, cameras, hybrid vision, accelerometer

代码中都你如何在一张相片中加入Exif信息.Exif信息中包含了诸如曝光、ISO、GPS坐标等许多有用的信息.如果您的拍照软件拍完照片.并想在照片中加入自定信息时.请看源码!-The code is how you add a photo Exif information. Exif information includes information such as exposure, ISO, GPS coordinates, and many other useful information.