WDR Full Form

What is the full form of WDR?

WDR stands for Wide Dynamic Range. It refers to photos having a high dynamic range captured by video surveillance cameras. WDR improves image quality in high-contrast lighting situations, enabling the registration of details in the scope's dark and light areas. With the help of this technology, a balance between brightness and darkness is created, significantly increasing image quality and producing a more consistent outcome. When a camera is pointed at a window, we can identify locations where light enters more or less. Without WDR, we would see a section of the image that was extraordinarily black and another extremely bright, which would cause many details to be lost. Since we might lose some of what goes on in that shadowy area, this might constitute a security violation. With the help of WDR technology, a balance is struck, allowing us to see the entire window area with a constant light level and no loss of detail.

Working of WDR

In order to allow more light in some portions of the image and less light in others, those that are brighter, WDR technology uses various shutter speeds on the camera lens. The sensor's exposure to outside light is managed to produce a corrected image.

• Higher speeds are employed in lighter locations to reduce the amount of time the sensor is exposed to light.

• Because the shutter speed is slower in darker locations, the sensor can record more light for a longer period of time.

• To create the final image with intermediate lighting, both photographs are blended.

• Areas farther away from the glass will look lighter when viewed via a window by a camera placed within a structure, while those closer would appear darker.

• We can generate a sharp and balanced image with double exposure using WDR technology, where every area will appear to have the same amount of illumination.

WDR and DWDR

We must be careful when selecting our WDR-equipped security cameras. In addition to the regular variations between manufacturers and models, we shall find two cameras that, despite appearing to be identical, are not: TRUE WDR cameras and WDR DIGITAL cameras. Digital WDRs work utilizing a software compensation mechanism, but true WDRs combine different shutter speeds.

True WDR cameras combine two photos with differing light exposures to create a third image, adjusting for light intensities to produce the best overall lighting. Digital WDRs substitute computer compensation for this natural process. Here, a single image is created and automatically and digitally edited. To get that result, cameras with full WDR collect 60 frames per second. They need a bigger-picture processing capacity to accomplish this. Because of this, True WDR cameras produce superior results despite being more expensive.

Significance of alarm

Although having video surveillance cameras is crucial for the building's security, this article would be incomplete without mentioning the value of having a reliable alarm receiving center. Verifying any potential alarms and false alarms will be taken care of, and the resources required to adequately respond to them will be mobilized.