fog-turning-torso-web

Security & Surveillance

The need for LYYN in a surveillance system

sturup_entrance_in_fog_compareThe market for video surveillance technology is clearly developing towards active intelligent systems with features like identification of suspicious objects or movements, counting of vehicles or people or fire and smoke detection. However, these automatic systems will always to a certain degree generate false alarms.

In the end there will always be a human making an interpretation of a situation and making response decisions. This person will need images with detailed and accurate information, even in situations with low visibility caused by low light or other visual disturbances like fog, rain, snow or dust.

This is the feature LYYN® brings to the surveillance market. LYYN will “turbo charge” any color video system, analogue or digital, existing or newly invested. In real-time.

Incident analysis

lowlight_break-in_lyyn_compareAs security cameras become ubiquitous, law enforcement officials are increasingly turning to video footage to assist them in cobbling together parts of crimes or in solving whodunits. It has become second nature for police to look for cameras when they arrive at crime scenes. Even in a routine arrest, a police officer will access videotape from local malls, businesses and private facilities. Also, hand-held DV camcorders are brought to the scene by the police in investigation and surveillance operations.

But often the footage does not have the images that was expected. Visibility problems are quite common, like low light, fog or just the fact the the video was shot through a tainted window in a car. All these situations can be addressed with LYYN® in a post processing application. Even if the video tape seems completely black, there might be information extractable by LYYN®.

Visibility issues solved

abu_dhabi_2_lyyn_selectionA known problem inherent in surveillance and other observation systems is the need to overcome visibility reducing conditions such as: humidity, haze, fog, mist, smoke, dust, snow or rain that might be present in the space between the surveillance system and the target being observed. The particles or droplets reduces visibility in two ways; the first is the actual obscuring of what is behind the particle, and the other is the effect called “light scattering” caused by light reflection in the particles.

Both these effects increase with distance, especially when zooming in on a distant object. Even on what appears to be a fine and clear day, there will most certainly be enough haze or fog in the air to reduce contrast significantly.

Also, telephoto lenses have a narrow field of view, allowing bright light outside your image area to affect your image with flare, which reduces contrast.

All these effects are drastically reduced with LYYN® products, as the following customer cases strongly suggests.

 

Security & Surveillance Cases