Infrared Cctv Ccd

The image sensor is the component of the camera that captures light and begins the process of converting a digital image. There are two types of sensors, security cameras: CCD (Charge Coupled Device) and CMOS (Complementary Metal Oxide Semiconductor). Which one you choose depends on your application.

First a little history on each technology.

With CCD, the charge of each pixel is transferred via an exit node, which then becomes a electrical signal. The signal is buffered and sent as an analog signal. Because the pixels can be devoted to capturing light and image quality is generally very high.

With a CMOS sensor, each individual pixel carries its own load voltage conversion, and the sensor also performs the amplification and noise correction. The sensor also includes digital circuits that enable the chip output to a digital format. Due the complexity of this design reduces the area devoted to capturing light. And because each pixel is to make his own conversion, uniformity (in both image quality) is smaller.

The production cost for both types of sensors are similar, but sometimes CMOS sensors require additional support chips to optimize image quality. CMOS sensors are ideal for devices that require speed and low power consumption, while CCD sensors for excellence in image quality and performance in low light.

Although both CMOS and CCD sensors have increased significantly in recent years, when it comes to security cameras, I prefer CCD applications for internal and external CMOS functions of the IP camera. Let me explain why.

In the world of the camera, CCD and CMOS sensors are virtually even in terms of performance. In fact, CMOS sensors are very interesting in this space because of its power requirements much lower – an important feature for battery devices. In the world of security cameras, I think the CCD CMOS sensors perform better than their counterparts in several key indicators.

The first and most important is the sensitivity to light. If you need a security camera capabilities with night vision that the CCD is the way forward. Cameras CMOS I tested, with or without infrared light, have been almost completely blind in the dark. The CCD cameras are very capable applications in low light, and are terrific when combined with infrared light. If you need to register in situations low light, the CCD is the way forward – not even consider the CMOS.

The second factor to consider is image quality. In the world of security cameras, while the two technologies come together, the CCD has the advantage in image quality. This is because fewer noise CCD image shows that their counterparts in CMOS.

So why consider purchasing a security camera with a CMOS sensor? Mainly because these sensors are more common in IP security cameras – ie, cameras that are equipped to build Web servers and communicate via IP using CAT5 cabling. These cameras are generally very affordable and are ideal for indoor applications requiring Web-based video streaming.

In conclusion, CCD sensors are the way forward for exterior applications, depending on the scenario of light or an image of higher quality is necessary. CMOS sensor based cameras should be considered for interior applications with decent lighting conditions.

[mage lang="en|es|fr|en" source="answers"]Infrared Cctv Ccd[/mage]
1/4″ SHARP CCTV CCD 48 IR LEDs 1.0Lux/F1.2 420TVL Night Vision Color Dome

Tweet This Post