Introduction - Vivotek Supreme IP8151 White Paper

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Introduction

IP8151 represents the first in VIVOTEK's SUPREME series of
professional security cameras, integrating a host of professional features
and unparalleled image quality for discerning users and demanding
applications. One of the key characteristics of the IP8151 is the newly
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developed SONY Exmor 1.3 Megapixel CMOS image sensor, designed
for situations which require exceptional performance in nighttime and low
light conditions. While megapixel cameras traditionally require a high
level of lighting for maximum picture clarity, with the improvement in new
sensor technology, the resulting IP8151 camera offers as one of its
significant features Supreme Night Visibility.
Fig.1 IP8151 is the first VIVOTEK Supreme Series network camera.
A conventional megapixel image sensor is the same size as a standard
VGA CMOS sensor, with more pixels at a smaller size in the same area to
achieve the improved picture clarity. The drawback of this traditional
sensor design is that the change in light sensitivity raises the dB value of
the signal-to-noise ratio. In other words, a traditional megapixel CMOS
sensor produces more noise under low light conditions due to its physical
limitations, resulting in more light required for a clearer picture.
To combat this, VIVOTEK utilizes sensor technology and digital signal
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Exmor is a trademark of SONY Corporation.
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For Internal Use Only.