Wouldn t it be great if we could somehow give visual commands to our computer without touching the keyboard or mouse? In this article, we will put together a simple laser gesture recognition application and use it to control Windows Media Player. Thi

object tracker laser

提出了两个已知波长的消光系数比来表征气溶胶粒子对入射激光衰减特性的方法。-Two known wavelengths of the extinction coefficient of light than to represent the attenuation characteristics of the aerosol particles on the incident laser.

VC制作PDF417,Qr_Code,DataMatrix二维条码编码，源程序演示,有完整的详细接口说明，完整的DEMO，包括条码读码，是制作二维条码的经典作品。 以动态库(DLL)方式提供图片格式的二维条码解码，供二次开发。 ● 生成PDF417、QR Code、DataMatrix等二维条码； ● QR码和DataMatrix码提供条码图象黑白二值信息缓存接口，便于激光机和雕 刻机的操作； ● 二维条码生成控件能将文字（任何语种的文字）、二进制数、照片（可压缩