Dallmeier Logo

Video Content Analysis - VCA

Automatic video stream analysis based on motion detection

VCA technology

The video protection of large buildings, shops and especially public areas such as railway stations, streets and squares usually generates a high volume of data by recording the corresponding video streams.

The VCA technology integrated in the 5000 series cameras analyzes the video stream captured by the image sensor directly on the camera. It detects movements and provides the corresponding metadata for further processing by the analysis functions integrated directly on the camera. These functions detect events and objects and also allow their classification.

Vorteile 

  • Reduction of utilization 
  • More information
  • More efficient evaluation

Intrusion Detection

Automatic detection of unauthorized access to sensitive areas
When objects (persons, vehicles, etc.) enter or leave user-defined sensitive areas, an event is automatically triggered and the information about the event is sent as metadata to the recording appliance for later evaluations.

Typical applications:

  • Securing the perimeters of critical infrastructures
  • Area protection and monitoring of open spaces
  • Property protection and monitoring of entrances to buildings
  • Observation of no-stopping and no-parking zones as well as of fire brigade access roads, emergency routes or similar

Line-Crossing Detection

Virtual tripwire
When an object touches or crosses a virtual line, an event is automatically triggered and the information about the event is sent as metadata to the recording appliance for later evaluations (can also be used in combination with Intrusion Detection).

Typical applications:

  • Perimeter protection (fence monitoring, protection against climbing)

Object Classification

Automatic classification of objects based on specific characteristics (detection of persons and vehicles)

Typical applications:

  • Logging of vehicles in no-traffic areas (e.g. pedestrian zones)
  • Subsequent control and evaluation of secured areas at public events

Face Detection

Automatic detection/recording of faces[1]
This analysis application is used to quickly find faces in the recorded video material and allows for a simplified subsequent forensic analysis.

1. There is no automatic identification of faces or data matching with face recognition databases. 

Tamper Detection

Camera sabotage protection
In case of a fast scene change (e.g. when someone is changing the current camera orientation) or when someone is spraying, covering or blinding the lens, an event is automatically triggered and the information about the event is sent as metadata to the recording appliance for later evaluations.

 


Objective 
The VCA technology integrated in the 5000 series cameras is designed to detect all potentially relevant events. The acquisition of relatively many non-relevant events is accepted. The metadata of all events is stored in a database on the recording system, neglecting the required storage space for non-relevant events.An active alarm function based on this data is not provided, interfering false alarms do not occur.

The stored metadata serves as a broad basis for the targeted search for relevant events in the recorded video footage with the function SmartFinder in SMAVIA Viewing Client. Only here, non-relevant events are filtered out by the combination of sophisticated search criteria. This ensures that no important event is overlooked. The number of events discarded by the filters is irrelevant.

 

Compatibility 
The functions for storing and providing analysis events and metadata are integrated into all SMAVIA appliances running on the latest firmware.