Bosch IVA Pro Visual Gun Detection License

IVA Pro Visual Gun Detection is equipped with the latest deep neural network-based video analytics that is designed to automatically detect upright persons and brandished guns. It is designed to ignore other unwanted sources of motion in the environment, such as rain, snow, clouds, blowing leaves, lighting changes, or a shaking camera.

IVA Pro Visual Gun Detection is designed to systematically secure approach and entry points. The software is designed to automatically detect different kinds of guns (including handguns as well as rifles), which are held by a person within predefined conditions, in order to identify potential threats at an early stage and to involve a person to verify the threat and decide on further actions. Under those pre-defined conditions, the system has a true positive rate of 86.7% and a false positive rate of 0.1%.

Required predefined conditions: the scene must be well illuminated (at least 200 lx); the gun must cover at least 5% of the image height, be less than 50% occluded and must be visible for at least one second.

Evaluation based on video sequences: if a gun is detected at least once in the video sequence, it is considered an alarm.

The detection distance (based on the pre-defined requirements—that means having a resolution of 36 ppf) depends on the focal length and the size of the of the gun. Assuming the use of the FLEXIDOME 5100i 2 MP version, a gun size of 7.9", the detection distance varies between 8.9 ft (f = 3.2mm) and 41.3 ft (f = 10.5mm), depending on the focal length.

With a focal length of 3.2mm, the gun detection range is 2.7 to 8.9 ft. At a focal length of 10.5mm, the gun detection range is 12.6 to 41.3 ft.

IVA Pro Visual Gun Detection offers high-performance indoor and outdoor people counting for typical surveillance scenarios by using the built-in person detector.

The built-in tamper detection generates alarms on camera hooding, masking, blinding, defocusing, and repositioning.

IVA Pro Visual Gun Detection is designed to provide the following object classes:

• Persons
• Gun in hand, referred to as brandished guns in the datasheet

The following alarm and statistic tasks are available:

• Detect persons and brandished guns within, entering, or leaving a single or up to three defined detection zones in specified sequence or timing
• Detect multiple line crossings from a single line up to three lines combined in specified sequence or timing
• Detect persons or brandished guns traversing a route
• Detect loitering in an area related to radius and time
• Detect persons and brandished guns that have started or stopped moving
• Detect persons and brandished guns with properties, such as size, direction, and aspect ratio, that change within a configured time, according to specification
• Count persons and brandished guns crossing a virtual line
• Count persons and brandished guns within an area and alarm if a predefined threshold is reached
• Combine tasks using scripts

IVA Pro Visual Gun Detection can be configured to ignore specified image areas to enhance robustness. Furthermore, object size and two-way direction can be used in any combination to create specific detection rules for people or brandished guns. Statistics on object properties are stored and can be displayed for fine tuning the object filters. Object properties can also be defined by selecting an appropriately similar object in the video.

The intelligence-at-the-edge technology allows users to reduce bandwidth and storage in the absence of action and switch back to full image quality in case of video analytics alarms. Alarm conditions can be signaled by a relay output on the unit, an alarm connection to stream video to a decoder, or a video management system. Alarms can also be transmitted to a video management system to start extended alarm scenarios. As well as creating alarms, IVA Pro Visual Gun Detection produces metadata, describing the content of the analyzed scene. This metadata is sent over the network and may also be recorded with the video stream or used independently of the video stream.

The recorded metadata can be used for a full forensic search in which the rules can be changed within Bosch Video Management System, even after the fact. New tasks can be defined and adapted for each search, and the recorded metadata is then scanned and evaluated accordingly. Forensic search is very time efficient and can scan a huge recording database for events within seconds.

The setup is available via the Configuration Manager. A wizard-based graphical user interface guides the user through the configuration. It provides all the necessary tools to set up IVA Pro Visual Gun Detection and specify detection or counting tasks. All configuration options are visualized as feedback overlays and can be edited directly for intuitive configuration. When movement is detected, the object is outlined in yellow on the display and its motion is displayed as a green trajectory. If an object and its motion match the rule conditions defined for one of the detector tasks, an alarm is created and the object outlines change to red.

With minimal configuration and without calibration, IVA Pro Visual Gun Detection is designed to detect upright persons and brandished guns while suppressing any other objects or motion. Select a task and mark the area of interest in the image. Up to 64 objects can be tracked in real time. Scenario defaults provide example configurations for the most common tasks. More complex setups are also supported: up to 16 independent tasks can be set up in the GUI, and the alarm objects for each task can be restricted, according to their properties. A task script editor is available for fine-tuning and combining predefined tasks.