visia
visia [sound detector]
VISIA Sound Detector allows the recognition of anomalous
sounds, guaranteeing smart acoustic monitoring, by issuing
alerts automatically and in real time whenever the system
detects a sound that can represent a potential threat to
security.
The microphones “on the field” detect sounds 24/24,
carrying on constant comparison with the pre-defined
acoustic models and reporting the possible rise of
anomalous events to the defined target system.
recognition of
SCREAMS
GUNSHOT
BROKEN
GLASSES
SPRAY CAN
WHISTLES
visia [sound detector]
MAIN FEATURES
Environmental adaptation
Server-based or Edge Analytics solution
window
window
Usage with third-party platform
APPLICATIONS
This software allows to recognize the
following acoustic events:
Sound Detector is one of the Visia component
(Nexera’s smart surveillance platform), but
it can be used in systems with different
technological standards as well, as it offers
SOA-compliant integration profiles
by employing web service.
Combined with the Motion Tracker
(Nexera’s video analytics software), it
becomes part of a high-performance
integrated surveillance system, significantly
increasing protection and security of people
and objects, with real time automatic
monitoring of video and audio.
Other products by Nexera
for smart surveillance
visia [video proxy reflector]
a Multimedia Networks Appliance capable
of distributing video streams coming from
ONVIF-compliant video sources, thus
avoiding bottlenecks on Unicast networks.
visia [motion tracker]
makes the automatic video analysis from
a video source and forwards alerts in real
time to the PC clients.
visia [face detector]
detects the faces shot by a megapixel camera.
visia [GIStributor]
based on the Video Proxy Reflector (with a
new scaling feature) it allows the
geolocalization of different types of mobile
devices (IPhone, IPad, Smart Phones, etc.)
and connects them to a particular video
stream coming from the network cameras.
visia [application server]
is the Video Management System used
by Nexera in its projects.
Screams
Gunshot
Broken glasses
Spray-can whistles
The precision of the system is based on two basic factors:
1. the possibility to perform a preliminary training phase during which
the background noise is acquired for an observation period
depending on the environmental conditions where the system has
to be run. This allows to accurately tune the parameters of the
“classifier” (which allows the recognition of acoustic events), so as to
optimize the performances, minimizing the possibility of false alerts
(both positive and negative);
2. the presence of a supervising applicative software module, which
makes complex analysis to obtain definitive information according
to the temporal distribution of the detected acoustic events. This
software module is made by a “decision” layer, which makes a
discretionary evaluation about the actual reliability of a detected
sound, so that the sound detected by more than one sensor (and
coming from the same source) is not reported more than once.
has a professional team able to provide a global
solution for the smart video and sound surveillance, from the
designing to pre-selling support, and the post-selling support, and
from the training of operators to support “on the field”.
Nexera – Società Consortile per Azioni
Centro Direzionale, Isola A/3 – 80143 Napoli
Ph: +39 081 5625868 - Fax: +39 081 5625135
email: [email protected] - http://www.nexera.it