Most Popular Security Camera Technologies - WDR, DNR, Smart IR, ONVIF, PoE
| WDR (Wide Dynamic Range)* WDR imaging is a method used to produce images that try to recreate the full-scene content in scenes that have a dynamic range that cannot be captured by standard cameras in one image. |
Benefits of WDR:
True WDR, Digital WDR, Ultra WDR, View-DR
| DNR (Digital Noise Reduction)* Traditional DNR technology utilizes temporal noise reduction. This technique basically compares one frame to the next and removes any tiny specs in each frame that do not match. The idea is that by blending the frames, the overall noise content in an image is reduced. 3D DNR employs inter-frame reduction which refers to the previous and next frames' pixel values for noise processing. |
Benefits of 3D DNR:
2D DNR, 3D DNR
| SMART IR (Infrared)* In most night-time scenarios, very little ambient light is available. Infrared light is a great light source since it is invisible to human eyes but visible to image sensors. A camera with traditional IR illuminators may not be applied in all kinds of environments. This often leads to over- or under-illuminated video footage. |
Benefits of Smart IR:
| ONVIF* ONVIF is an open industry forum for the development of a global standard for the interface of IP-based physical security products. Founded in 2008 by Axis, Bosch and Sony, the forum rapidly gained momentum and is today endorsed by the majority of the world’s largest manufacturers of IP video products. The cornerstones of the organization are:
| PoE (Power over Ethernet)* PoE is a technology designed to deliver power to networking devices using existing data communications cabling. |
Benefits of PoE include:
| Device Compatibility and E-mail Alerts* Apple Iphone, Ipad, Mac, Laptop, Android compatible. When motion detected by the camera, e-mail is sent to your e-mail address if you set up your recorder.
| RESOLUTION* Resolution in an analog or digital world is similar, but there are some important differences in how it is defined. In analog video, an image consists of lines or TV-lines since analog video technology is derived from the television industry. In a digital system, an image is made up of square pixels. More pixels means more detail and a larger virtual workspace. Megapixel resolution also provides a greater degree of flexibility in terms of being able to provide images with different aspect ratios. |
720P, 1080P, 4K
| MATRIX and LED IR* |
Benefits of Matrix IR
| IP66, IP67, IK10 (Weather and Vandal Proof)* |
| MJPEG4, H264 and H265 (Video Coding)* |
H.265, aka HEVC, is the successor to H.264. H.265 is meant to double the compression rates of H.264, allowing for the propagation of 4K and 8K content over existing delivery systems.
On the left side, the chart gives a good basic idea of what sorts of benefits H.265 can offer compared to H.264. While it’s not hitting 50% bandwidth savings in most cases, it’s close — quantizer 24 is 57% the size, q=30 is 59%, and q=40 is just 47%. Granted, at a quantizer of 40, the final output is wretched — but it’s wretched at less than half the bandwidth.
| LENSES (Fixed, Varifocal, Motorized)* |
| 3 AXIS* (PAN-TILT-TWIST) Three-axis models add the ability to rotate the camera module within the yoke. This allows you to adjust the angle that the camera looks at the scene from. |
| SD CARD SLOT* (Micro SD/SDHC) |
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