When it comes to overall quality of an inal-title=Analog is the - TopicsExpress

When it comes to overall quality of an inal-title=Analog is the opposite of digital. Any technology, such as vinyl records or clocks with hands and faces, that doesnt break everything down into binary code to work is analog.>analog security camera system, there are a few different variables that you want to look at. Recording resolution, frame rate, image sensor, and the inal-title=The term “TV lines” refers to the number of discernable horizontal or vertical lines on the screen. The TVL resolution refers to the FINAL resolution of the camera. 480 or greater is considered High Definition.>TVL of your cameras(and whether they are focused or not) all make up the overall quality of your image. There are four main recording resolutions in the world of inal-title=Analog is the opposite of digital. Any technology, such as vinyl records or clocks with hands and faces, that doesnt break everything down into binary code to work is analog.>analog security systems. Those resolutions are: inal-title=960H is a series of SONY CCD image sensors capable of capturing video images at a resolution of 976hx528v. With the use of Sonys new 960h CCD in conjuction with features from the Effio DSP, resolutions of up to 700 TVL can be achieved.>960H: 960x480 D1: 720x480 HD1: 720x240 CIF: 260x240 The higher the resolution is, the better image quality that is going to be saved to the DVRs hard drive. With the better image quality, you will have a better chance at identifying an individual. When it comes to frame rates, most of our DVRs are rated for 30FPS at CIF resolution per channel. 30 frames per second is comparable to a normal television video feed. Most of our DVRs are capable of recording at least D1 and lower, however there are some trade offs when using a higher resolution. On most of our systems, when using D1, your framerate is cut by at least half. Most of the time, your frame rate is cut by even more than half! This means that while the resolution of your video will be clearer, you are only getting a percentage of what is happening. Some extremely fast movements may not be noticeable with the lower framerate. A DVR listed as Realtime Full D1 can record at D1 resolution and 30FPS. Some DVRs will be marketed as Full D1, but because it doesnt say realtime, it is not going to be able to record at 30 FPS per channel. There are multiple sizes and types of image sensors. The larger the image sensor is, the better it should reproduce color. This means that a 1/4 inch image sensor is not as good as a 1/3 inch image sensor. As far as types go, there are inal-title=CCDs are a very high-quality sensors in terms of fidelity and light sensitivity. CCD sensors create high-quality, low-noise images. CCD sensors tend to have higher quality. CCDs tend to be used in cameras that focus on high-quality images with lots of pixels and excellent light sensitivity. >CCD and inal-title=CMOS sensors have lower quality, lower resolution and lower sensitivity. CMOS cameras are usually less expensive and have great battery life, but the color is not accurate, displaying trees and grass in purples and pinks.>CMOS. Typically speaking, a inal-title=CCDs are a very high-quality sensors in terms of fidelity and light sensitivity. CCD sensors create high-quality, low-noise images. CCD sensors tend to have higher quality. CCDs tend to be used in cameras that focus on high-quality images with lots of pixels and excellent light sensitivity. >CCD image sensor is better than a inal-title=CMOS sensors have lower quality, lower resolution and lower sensitivity. CMOS cameras are usually less expensive and have great battery life, but the color is not accurate, displaying trees and grass in purples and pinks.>CMOS image sensor. The last part of the quality equation is inal-title=The term “TV lines” refers to the number of discernable horizontal or vertical lines on the screen. The TVL resolution refers to the FINAL resolution of the camera. 480 or greater is considered High Definition.>TVL or better known as TV Lines. TV Lines are a measure of horizontal resolution. The lines of resolution are too small to be able to be seen with the human eye. One has to use a special chart to be able to count the lines of resolution. Tags: quality, recording, Resolution