Metrici PPD (Parking Place Detector) engine
Distributed parking-space occupancy detector
Features
- Architecture
- Distributed detection and recognition, free-flow or triggered
- Recognition rate and performance
- More than 99%, using appropriate camera positioning and image settings; can recognize vehicles whose view is partially obstructed by fences, bushes, trees, people or other vehicles
- Recognition enhancements
- Yes, depending on the size of the vehicles: low, medium, normal, high, ultra, insane
- Recognition speed
- Less than 400 ms/frame at high settings, using an appropriate GPU
- Number of recognized vehicles in each frame
- Unlimited
- Maximum recommended number of defined parking spaces
- 20 inside, 200 outside for each camera. More possible depending on the camera placement, angles, dimensions of vehicles, etc.
- Double parking detection
- Yes, detects when a car occupies two places
- Delay when a parking space changes its state
- Yes, user definable, 5 seconds by default
- Trigger type
- Over UDP from a Metrici Multicontroller, a Barix Barionet 50 LAN controller, from the Metrici PPD web interface, or from another Metrici engine (LPR, CCR, QR, etc.)
- Companion stream
- Yes
- Live view
- Yes, 1 fps
- Data type for each parking space
- Space ID, status (available/occupied), double parking, timestamp, x coordinate, y coordinate, object type, object subtype, camera name, location name, parking picture, companion picture
- Parallel processing
- Adaptive multithreading, up to 8 threads for each connected camera
- GPU acceleration
- Yes — Intel, AMD or Nvidia supported
- Data push
- POST method over HTTP; one event generated: reporting
System requirements
- OS
- Ubuntu 24.04 LTS MATE, Linux CentOS 7 (64-bit)
- CPU
- Intel Xeon; AMD Ryzen, Threadripper or Epyc
- GPU
- Intel, AMD or Nvidia; mandatory for more than 2 cameras/server
- System memory
- 512 MB for each connected camera, but no less than 4 GB/server
- GPU memory
- At least 256 MB available for each connected camera
- Storage
- Up to 512 KB for each parking event stored in the buffer, depending on the camera resolution and image compression
- Cameras/server
- Up to 256 connected cameras on each server; unlimited number of servers
- Camera type
- IP; MJPEG, MxPEG, H.264 or H.265 video stream; HTTP or RTSP/RTP transport protocols
- Supported camera producers
- ACTi, Arecont, Avigilon, Axis, Bosch, Dahua, Diviotec, Hikvision, Mobotix, Novus, Pelco, Samsung, Sony, Uniview, Vivotek