there is a photo sensor on the top of this camera, mounted to give to camera info about how much light is available in the room. and when you put black tape over that sensor, camera gives more power to IR leds.
you can get reflective material for points if you buy traffic reflective vest, used for trafic control etc.. it could be found in any auto accessories store.
Aircn1017 (35分钟之前) 显示 隐藏 0 标记为垃圾邮件 回复 | 垃圾邮件 this free track ir is very best but I have two problem what is the material of the reflective points on the hat and what is the material on the camera which you flip it at the video begin and what is the purpose