What is the monitoring of SD

What is the monitoring of SD, HD and Full HD
Over the past few years, driven by the consumer electronics market, coupled with the positive CRT TV LCD and plasma TV screen changes, HDTV and achieved great success. With the field of video surveillance are now starting to adopt HDTV, monitor in SD, HD and Full HD HDTV basically follows the concept of some called. Compared with analog CCTV systems, high definition means exceptional image quality. Currently we are in the definition of the concept of speculation, before we usually D1 (704 * 576) resolution and above are called high-definition, it is not true, D1 only standard-definition resolution. We will now look at what is the SD, HD and Full HD. I believe that through AipStar vendors and numerous high-definition video surveillance efforts in the near future, HD will spread throughout the security surveillance market.
SD
The so-called SD, is the physical resolution of 720p (1280 * 720) following a video format. 720p video is a vertical resolution of 720 lines of progressive scan. Specifically, refers to the resolution of about 400 lines of VCD, DVD, TV shows and other "standard definition" video format, which is the standard definition. The physical resolution than 720p claimed as HD (English expression High Definition) referred to HD. About the HD standard, there are two internationally recognized: Video vertical resolution than 720p or 1080i; video condone ratio of 16:9.
HD
For the "HD" and "SD" first division can be seen from the video effects. Since the image quality and the transmission channel bandwidth occupied by different, so that the digital television signal into a HDTV (high definition television), SDTV (Standard Definition Television) and LDTV (standard definition television). From the visual point of view of HDTV highest specifications, the image quality can be at or near the 35mm wide-screen film, it requires video content and display devices to achieve more than 1000 lines of horizontal resolution, resolution up to 1920 × 1080. From the quality point of view, basically the equivalent of the HD resolution four times that of traditional analog TV, picture clarity, color reproduction to be much better than traditional TV. The 16:9 widescreen display can also bring a broader vision. From the audio effect, high-definition TV programs will support Dolby 5.1 channel surround sound, and high-definition video program will support Dolby 5.1 True HD specification, which will bring us a stunning listening enjoyment.
Due to cost constraints, high-definition video surveillance industry has not been effectively applied. And now chip technology and the development of compression algorithms, high-definition video surveillance products gradually rise. Now D1 SD video compression format has been formally written into the digital hard disk video recording system (DVR) national standards. From the video surveillance industry perspective, the market now has commercial standards-based H.264 HD IP Camera (HD IP Camera) and video server products, but the definition can usually reach 720P 15FPS frame rate is usually only the following can not be reached Real-time video surveillance purposes. AipStar company has a 720P HDNetwork Camera, standards-based H.264 Main Profile compression algorithm, can achieve lower yard shed clearer images. It supports 30FPS, 720P dual-stream real-time video encoding, high-definition, real-time, dual-stream, with SD card and USB recording function, support Wifi wireless, more support for high-definition video YPbPr analog output with a higher cost.
FULL HD Full HD
The so-called Full HD (FULL HD), refers to the physical resolution up to 1920 × 1080 display (including 1080i and 1080P), where i (interlace) means interlaced; P (Progressive) stands for progressive scan, which both in the picture finesse has a very different, 1080P picture quality to be better than 1080i. Corresponding to 720 called the standard definition. Obviously, due to the process of data transmission is more abundant, so the advantage in resolution 1080, especially in the large-screen television, 1080 to ensure a clearer picture. Due to cost and other reasons Full HD products are currently in the monitoring system is also rarely used, usually available only in some high-end applications.
HDTV and HD monitoring system Common Criteria
Standard HDTV resolutions up to five times the resolution of analog TV. HDTV also has better color fidelity and a 16:9 format. SMPTE (Society of Motion Picture and Television Engineers) defines the two most important HDTV standards are SMPTE 296M and SMPTE 274M.
· SMPTE 296M (HDTV 720P) defines a resolution of 1280x720 pixels, 16:9 format
Fidelity color, 25/30 Hertz (Hz) sequential scanning frequency, ie 25-30 frames per second, depending on country specific, but also supports 50/60Hz Scanning Frequency (per 50/60).
· SMPTE 274M (HDTV 1080) defines a resolution of 1920x1080 pixels, 16:9 format
Color fidelity, the use of 25/30 Hertz (Hz) and 50/60Hz interlaced or progressive scanning frequency.
SMPTE-compliant HD IP Camera indicates adherence to HDTV quality and should provide all HDTV resolution, color fidelity and frame rate advantages.
HDTV based on square pixels, similar to the computer screen, so from the network video products can be in HDTV HDTV video displayed on the screen can also be displayed on a standard computer monitor. Using sequential scan HDTV video, computer processing or when the video will be displayed on the computer screen when the application does not require conversion or deinterlacing technique.
Welcome to Shenzhen P2P IP Camera manufacturer VStarcam Website http://www.vstarcam.com Viagra more information!