Mexico. In the context of surveillance monitoring, video metadata refers to the structured details that you can possibly extract from a given video footage. That is, it is a data that provides information about other data, in short, a "data about data".
Human-based video metadata, as the name suggests, is data derived from human targets at the monitored scene. It can be used based on user requirements to significantly improve the management and operation of various application scenarios, while carefully maintaining people's privacy.
To give you some insights into its practical use, Dahua Technology shares three conventional applications that use human-based video metadata that can be adopted based on specific monitoring needs:
Search goals and generate statistics
One of the most common applications of human-based video metadata is the search for targets after an event. Smart surveillance devices, such as Dahua WizMind products, offer the quick target search function that allows suspects to be located in time using their particular attributes or physical characteristics. Target attributes include beard, goggles, mask, hat, etc., which are continuously developed and increased to meet the requirements of various application scenarios. Irrelevant targets in the captured images are also filtered by the back-end devices (IVSS, NVR) or by the platform. It can capture up to 640* targets (with attributes) per second with an impressive 98% detection rate*.
In addition, another useful application of human-based video metadata technology is ideal for goal statistics. WizMind counts in real time the human targets in the monitored scene and filters them according to the category and direction of the target. Addresses include A>B, B>A, or A<>B. And to complement it, you can also generate reports by year, month and day. It can capture up to 96** objects per frame, providing a detection rate of 98%** and an accuracy rate of 96%**.
Detect PPE usage
The use of Personal Protective Equipment or PPE is a must on any construction site. Depending on the scope of the project, monitoring the proper use of PPE on site could be a difficult challenge to implement.
Dahua WizMind's latest PPE detection technology can detect the use of PPE commonly used on construction sites, including safety helmets, protective vests, face masks and goggles. It can even detect the color of workers' uniforms (top and bottom). When a breach is detected, the site supervisor or manager can be notified via the DMSS mobile app. Like the target and statistics search functions, it also offers a detection rate of 98%**, with an accuracy rate of 96%**.
To see WizMind's PPE detection in action, watch this video.
Helps the city's road planning
Who would have thought that, in addition to vehicle-related data, statistics related to people on the street can also be useful for planning city roads? By collecting pedestrian attributes, directions, and time periods, local road planning departments can design better roads tailored to road users and commuters.
A good example is the Dahua solution developed for a local organisation in Ireland. Aside from motor vehicles and non-motorized vehicles, pedestrian metadata is also captured on major city roads and on the streets around squares. This data is then securely transferred to an SFTP server for further analysis. The data summary is transmitted to the local transportation department to help them plan and manage streets more efficiently.
Key findings
Human-based video metadata can be effectively used to optimize the monitoring operation of various application scenarios. Metadata based on human targets can be used to search for suspects after an event and generate accurate statistics of the people at the monitored scene. In addition, this structured data can be used to detect the proper use of PPE at a particular site and help local transportation departments plan and maintain city roads to benefit the general public.
To learn more about Dahua WizMind devices, you can watch this video or visit our Global Innovation Center website.
* Based on maximum performance of WizMind IVSS7000-16M
** Based on actual WizMind IPC 7 series performance
