Question: From which firmware versions do IPC and NVR start to support Level 2 video metadata?

Answer: IPC firmware version 5.1.2 and NVR firmware version 1.4.7 and later support Level 2 video metadata.

Video Metadata:

Video metadata refers to the extraction of structured information from objects appearing in video images. It is divided into two levels:

Level 1 metadata: Extracts object coordinates and classification. For example: (x=22, y=34, w=10, h=20) indicates a person.

Level 2 metadata: Extracts object attributes, such as gender, age, clothing for a person, or vehicle model and color for a car.