When placed inside a camera obscura, the color of images taken in light levels above 14 Lux are consistent with those taken under normal light levels, but color performance is affected at Lux levels below that. However, the AGC is switched on upon further reduction of light levels and together with 3D noise reduction c
When placed inside a camera obscura, the color of images taken in light levels above 14 Lux are consistent with those taken under normal light levels, but color performance is affected at Lux levels below that. However, the AGC is switched on upon further reduction of light levels and together with 3D noise reduction capability, color images remain clear and crisp. The cameras switch to black and white images when light levels fall to 1.06 Lux to produce clean, noiseless, and clear images. When light levels are as low as 0.18 Lux, the cameras automatically switch on infrared lights to produce sharp and clear images. With IR illumination, the camera is still capable of a 20-meter effective surveillance range in darkness.
Hybrid Input Incorporates All Images
In addition to HDCVI signals, Dahua's HDCVI high-resolution, analog solution also supports standard-definition analog video, 960H analog video, and network video resolutions of 1080p and below. HDCVI, 960H and D1 video signals can be accessed through the same BNC. It is also worth mentioning that this product is ONVIF compatible and supports third party front-end devices.
Transmission Distance Reaches Over 300-meters
HDCVI is capable of long transmission distances and its transmission distances of various coaxial cables are as follows:
* RG-59/U guarantees up to 500 meters of high-quality and reliable transmission at 720p
* RG-59/U guarantees up to 300 meters of high-quality and reliable transmission at 1080p
* RG-6/U or higher specification cable guarantees up to 650 meters of high-quality and reliable transmission at 720p
* RG-6/U or higher specification cable guarantees up to 400 meters of high-quality and reliable transmission at 1080p
OSD Menu Control via Coaxial Cable
In this test, it was discovered that the HDCVI solution allows for remote control of the camera's OSD on the DVR client side. This is achieved simply through connecting the DVR with the camera via the coaxial cable. Once that is done, the end user would be able to, for instance, enter the “PTZ” menu in the video channel to control the camera's functions and image parameters. The advantage of this technology is less upfront investment, as the coaxial cable transmits images and controls the cameras. Moreover, back-end remote control of the camera allows for more precision and saves valuable time.