NDI (Network Device Interface) is a high-quality, low-latency, multi-channel IP video transmission standard pioneered by NewTek. NDI®|HX3 is a new version of the NDI protocol, which further optimizes the balance between video transmission quality and bandwidth. 

Auto tracking is a unique technology of the PTZ camera based on the PTZ system. When a target triggers the IVS rule, the camera uses its horizontal/vertical rotation and zoom features to lock the moving target in the center of the screen. The pan/tilt function will adjust the direction of the camera so that moving objects can be tracked automatically.

NDI is the abbreviation of Network Device Interface, which is a network device interface protocol introduced by NewTek in 2015. NDI is a standard protocol for ultra-low latency, lossless transmission, and interactive control over an IP network. NDI is a network protocol that enables audio, video, and metadata signals to be sent over standard networks in real-time. NDI is bidirectional, low latency, and can transmit video up to 4K and beyond.