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Supreme Night Visibility- IP8330


Contents 1. 2.

Introduction................................................................................................. 3 Night Vision ................................................................................................ 3

3. 4.

Sensor Technology.................................................................................... 5 Image Signal Processing ......................................................................... 6


1.

Introduction A security camera has to provide all-time video for different lighting

conditions of different environments. From outdoor midnight street to indoor dark storage room, keeping good visibility is very important and necessary. However, it is a challenge in these scenarios that the camera with traditional CMOS has, and also its limitation in rare lighting environments. VIVOTEK has been seeking for a new CMOS and image signal processing technology, supreme night visibility, which has been proved in great progress of low light performance.

Fig.1 IP8330 is the first camera which applies supreme night visibility technology to provide excellent video quality and night-time performance.

2.

Night Vision

The video quality and night-time performance of a security camera mainly depend on two attributes: the lux rating and the infrared (IR) response. Under low light conditions with IR Illumination, the sensor employed in the camera plays a crucial role in the video quality ultimately seen by the viewer. The low lux rating means the camera can capture more light even under low light conditions. It is designed for cameras to improve image clarity and reduces grain drastically. So the user can monitor in lower lighting conditions with better results.


Fig. 2 Low lux rate camera can get clear night vision even without any external light

Infrared is used in night vision equipment when there is insufficient visible light to see. Night vision devices operate through a process involving the conversion of ambient light photons into electrons which are then amplified by a chemical and electrical process and then converted back into visible light. Infrared light sources can be used to augment the available ambient light for conversion by night vision devices, increasing in-the-dark visibility without actually using a visible light source.

Fig.3 Sensor’s good response in near IR environment can help camera work perfectly in total darkness as well.


3.

Sensor Technology VIVOTEK is leading the pack in low lux performance by utilizing a

sensor from Aptina built with DigitalClarity technology to exploit amazing image capability and powerful video performance. As the latest high-quality IP camera for demanding security applications, the IP8330, featuring Supreme Night Visibility, has excellent near IR response for night vision and incorporates all features of the Aptina sensor as shown in the datasheet. IP8330 contains an Aptina sensor featuring DigitalClarity technology.

Fig.4 DigitalClarity offers exceptional low light performance exceeding requirements expected from CCD sensors and provides excellent Near Infra-Red (NIR) response for night vision.Aptina’s breakthrough low-noise CMOS imaging technology achieves near-CCD image quality (based on signal-to-noise ratio and low-light sensitivity) while maintaining the inherent size, cost, low power, and integration advantages of Aptina's advanced active pixel CMOS process technology. The on-chip image flow processor performs important image processing such as color recovery/correction, sharpening, gamma, lens shading correction, on-the-fly defect correction, auto white balance, and auto exposure.


This sensor performs sophisticated processing functions including color recovery, color correction, sharpening, programmable gamma correction, auto black reference clamping, auto exposure, 50Hz/60Hz flicker avoidance, lens shading correction, auto white balance (AWB), and on-the-fly defect identification and correction. 4.

Image Signal Processing

The high quality video and images relay on not only a single sensor but also the image signal processing (ISP) technology. With decades of experience in image processing, VIVOTEK has great experience and technology that make cameras perform better and better. The color reproduction technology can compose vivid colors under various lighting environment. The technology will give a magnificent color image in response with the sensor as well as in a low light environment. Providing the unparalleled image quality with noise reduction technology, VIVOTEK has the expertise of operating noise deduction by the progress of removing the noise from the signal splendidly. The technology brings out the fine detail for each region, also improves the overall image quality. The effect of the enhanced IR feature is a well-made technique by VIVOTEK which allows more IR light pass in low light with better color filter, well-enhanced with VIVOTEK technique for the night vision VIVOTEK is an IT company and a leading developer of enterprise digital video surveillance product offering unparalleled image quality, reliable integration technology, and professional video solutions, robust, advanced, and easy-to-use system, and qualified services, by a group of energetic professionals working together, made it all possible.




Conventional CMOS



Conventional CCD



IP8330

With decades of experience in image processing, VIVOTEK continues to design and to provide comprehensive product lines of digital surveillance. We focus on the employing innovative technology in digital cameras to create an outstanding implement of image quality. To have such excellent performance out of IP8330, VIVOTEK has put a lot of effort on capturing the sufficient light with variable speeds to provide illuminate effectively. The IP8330 presents a huge step forward in low light technology. It offers techniques which enable better clarity due to the hard work on the developing of innovative technology as well as improved resilience to definition of low light. It provides the similar quality video at normal light rating.

Fig.5 Low light performance --- IP8330 is capable of performing 0.1 lux rate at 10 IRE.



Supreme Night Visibility White Paper