A new closed-circuit televi- sion (CCTV) technology logs motion events in front of cameras and creates a layered synopsis of hours of video footage to enable users to identify specific events and use the original footage to investigate, says monitoring and security technology company Graphic Image Technologies MD Mark Chertkow.
CCTV generates hundreds of hours of footage, making it difficult for personnel to monitor actively. However, the Briefcam VS Forensic technology layers the events one over another into a single short video so that events that happened over lengthy periods can be watched in normal speed, which people understand intuitively.
A demonstration video synopsis from a camera overlooking a street showed a panoply of people moving across the screen, each with a time stamp that is linked to the original video directory. A theft from a truck was also identified easily because all the workers went into the building except for two who entered the truck and then walked down the road.
“The security personnel were able to identify the theft and the company managed to recover the goods stolen from the truck,” Chertkow notes.
A security officer identifies abnormal behaviour more easily and, by looking at the original footage, is able to determine whether further investigation is needed. Video feeds can, therefore, be actively monitored and reviewed, he avers.
“People do not analyse lengthy videos well, but do evaluate events and incongruities well. Thus, security companies, transport companies, construction companies, retail stores, universities and logistics hubs can use this technology to improve their monitoring of hours of video footage,” he says.
“Using the Briefcam VS Forensic technology, a single person can view a synopsis of all the motion events captured by the cameras in a short time. Synopses of hours of original video footage can usually be analysed in a few minutes but depend on the number of events logged,” says Graphic Image Technologies executive Laurence Smith.
Security and monitoring personnel can watch these short synopses repeatedly, making security oversight more active and enabling timely intervention.
The core of the technology is the video recording and compression box, located near the camera, which records footage in high definition and compresses it before transmitting the data to the control room. The data is fed into the Briefcam engine that generates the synopsis and links it to the full video directory for further investigation, he says.
The compression technology enables mobile cameras to stream video from remote sites. This mobile CCTV technology is used to monitor diesel being transported by trucks in Africa, public transport buses in Israel and cranes at construction sites in South Africa, he notes.
The technology enables companies to use their existing assets in new ways and improve security and business intelligence, adds Chertkow.
For example, a retail store can use footage of its store to determine where shoppers walk and what they buy to improve the layout of the store.