Nature guides new Hikvision DarkFighterX cameras

Nature guides new Hikvision DarkFighterX cameras

Technology expanding human senses

A business owner arrives at his office one morning to find a door open, windows broken and property strewn about. After calling the police, he reviews the surveillance video: not much more than blurry images of indiscernible shapes here and there. A car’s headlights flicker across the scene. Then nothing.

A night security officer hears an alarm, then sees a truck erratically driving away from a prohibited area. He calls in a report and requests law enforcement. After the area is secure, they review the security camera feed: black and white blurry objects, vague human silhouettes and darkness. The only witness said, “I heard something, but I couldn’t see anyone.”

Scenes like these are all too common. Of all known crimes, 70 percent happen at night, hidden under the cover of darkness. To effectively reduce that crime statistic, video surveillance systems must extend and enhance its surveillance capabilities into the dark, alerting security personnel before an event occurs.

Today, Hikvision Digital Technology is equipping the video surveillance hardware to shatter that statistic and take night-time video surveillance deeper into the darkness, lifting the cover of night to capture the kind of information that will lead to criminal prosecution. Here’s one way Hikvision is doing this.
 
Comparison of images taken by regular surveillance cameras (left) and Hikvision DarkFighterX series cameras (right).
Source: Hikvision Digital Technology

Learning From the Human Eye

In humans, two types of photoreceptive cells — rods and cones — sit on the inner surface at the back of the eye, which is known as the retina. These two light-sensitive cell types independently perform different functions to capture the visible world around us. The rods respond to brightness, while cones capture and identify colors. The brain then fuses the information into a single image.

Nature did it first, but emerging technology is going further with this. Hikvision’s DarkFighterX series technology was developed by taking inspiration from the way human eyes see. Infrared (IR) sensors in the camera capture reflected infrared light that is invisible to the human eye but very “bright” to the sensors — similar to the rods in our eyes. While these IR sensors only transmit in black and white, visible-light sensors in the camera are simultaneously detecting and decoding colors — like the cones mentioned above. Both sensors sit behind a single lens, just as the rods and cones in our eyes.

The camera combines the two spectrums of light to create video and images — the brightness of the IR sensors imbued with the low-light color. Hikvision refers to this as bi-spectral technology. The result? DarkFighterX renders higher brightness, better color fidelity, sharper edges, and less noise and blur.
 
Hikvision DS-2DF8225IH-AEL(W) DarkFighterX 2MP 25x IR Network Speed Dome
Hikvision DarkFighterX cameras support H.265+ smart codec, which vastly helps to increase bandwidth performance and lower data storage requirements. Now, deep learning algorithm also significantly improves the accuracy of smart functions such as intrusion detection, line crossing detection, human body detection and auto tracking, etc.

Extension, Expansion and Application

Video surveillance systems must extend and enhance surveillance capabilities into the darkness in order to reduce the overwhelming amount of night time crime. This has been the pursuit of Hikvision’s R&D teams for many years now, and many amazing technologies have resulted from this. Applications for this camera and its advanced technology range widely. Systems integrators will likely find adaptations for the DarkFighterX that even go beyond what Hikvision foresees. At first glance, applications include crime-prone areas of cities after dark: sidewalks and streets, alleyways and retail centers, for example. Tourist areas and scenic destinations can be monitored by the DarkFighterX, such as rivers, lakes and beaches, forests, public squares, historical monuments, and more. Critical infrastructure locations are often prime targets for criminals. Ports, electrical and other power plants, railways, airports and other travel nodes, and international borders are just a few of the examples for this area of application. Wherever there exists a security vulnerability at night, that’s where the DarkFighterX series shines.

The DarkFighterX series cameras expand upon the human sense of sight by first mimicking the human eye — two distinct sensors capturing and combining brightness and colors — then extending that ability to extremely low-light environments. The technology results in colorful, bright and accurate imaging on security monitors, making night time surveillance video appear nearly as clear as daytime video. With the DarkFighterX series, Hikvision can — almost literally — place hundreds of eyes over a wide expanse of space, giving security personnel “sight” that’s quite beyond anything they have seen before. Even in the dark.

You just might not believe it … until you see it. 

For more information about Hikvision DarkFighterX cameras, please click here.



 
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