Tags: FULLHD Full HD SD This article refers to the address: http:// With the video surveillance field now also adopting HDTV, the definitions of standard definition, high definition and full HD in surveillance basically follow the name of HDTV. High definition means excellent image quality compared to analog CCTV systems. The definitions of SD, HD and Full HD in the monitoring field are different, the standards are different, and the product formats are naturally different. SD The so-called SD is a video format with a physical resolution below 720p (1280*720). 720p refers to the vertical resolution of the video is 720 line progressive scan. Specifically, it refers to a "standard definition" video format such as VCD, DVD, and TV programs with a resolution of about 400 lines, that is, standard definition. The physical resolution of 720p or more is called HD, (English Express HighDefinition) is referred to as HD. Regarding the standard of high definition, there are two internationally recognized: the vertical resolution of the video exceeds 720p or 1080i; the aspect ratio of the video is 16:9. HD The division of "HD" and "SD" comes first from the video effects that can be seen. Due to the difference in image quality and bandwidth occupied by channel transmission, digital television signals are classified into HDTV (High Definition Television), SDTV (Standard Definition Television), and LDTV (Normal Definition Television). From the visual point of view, HDTV has the highest specification, and its image quality can reach or approach the level of 35mm wide screen movie. It requires video content and display equipment with a horizontal resolution of more than 1000 lines and a resolution of up to 1920×1080. From the picture quality point of view, because the resolution of HD is basically four times that of traditional analog TV, the picture clarity and color reproduction are far better than traditional TV. The 16:9 widescreen display also brings a wider visual enjoyment. In terms of audio effects, HDTV programs will support Dolby 5.1 surround sound, while HD movie programs will support the Dolby 5.1 TrueHD specification, which will give us a superb listening experience. Due to cost constraints, HD has not been effectively applied in the video surveillance industry. Now with the development of chip technology and compression algorithms, high-definition video surveillance products are gradually emerging. The D1 standard definition video compression format has been officially written into the National Standard for Digital Video Recording (DVR). From the perspective of the entire video surveillance industry, there are already commercial H.264-based HD IP Cameras and video server products on the market. The resolution can usually reach 720P but the frame rate is usually only below 15FPS, which can not achieve real-time video. The purpose of monitoring. AipStar has a 720P HD megapixel network camera based on the standard H.264 MainProfile compression algorithm for clearer image performance at lower bit rates. It supports 30FPS 720P real-time dual stream video encoding, HD, real-time, dual stream, SD card and USB recording function, Wifi wireless support, YPbPr HD video analog output, high cost performance. FULLHD Full HD The so-called Full HD (FULLHD) refers to physical resolution up to 1920 × 1080 display (including 1080i and 1080P), where i (interlace) refers to interlaced scanning; P (Progressive) represents progressive scanning, both of which are fine in the picture There is a big difference in the degree, 1080P quality is better than 1080i. Correspondingly, 720 is called standard high definition. Obviously, 1080 has more advantages in resolution due to the richer data information during the transmission process, especially in the large-screen TV, 1080 can ensure a clearer picture quality. Due to cost and other reasons, FullHD products are currently less used in surveillance systems, usually only in high-end applications. HDTV resolution is up to 5 times the standard analog TV resolution. HDTV also has better color fidelity and 16:9 format. The two most important HDTV standards defined by SMPTE (American Society of Motion Picture and Television Engineers) are SMPTE296M and SMPTE274M. SMPTE296M (HDTV720P) defines a resolution of 1280x720 pixels, high-fidelity color in 16:9 format, 25/30 Hertz (Hz) sequential scanning frequency, ie 25-30 frames per second, depending on the country, 50/60Hz is also supported. Scan frequency (50/60 frames per second). SMPTE274M (HDTV1080) defines a resolution of 1920x1080 pixels, a high fidelity color of 16:9 format, using 25/30 Hertz (Hz) and 50/60 Hz interlaced or sequential scanning frequencies. Cameras that conform to the SMPTE standard are compliant with HDTV quality and should provide all the resolution, color fidelity and frame rate advantages of HDTV. HDTV is based on square pixels, similar to a computer screen, so HDTV video from a network video product can be displayed either on an HDTV screen or on a standard computer monitor. Using sequential scan HDTV video, there is no need to apply conversion or de-interlacing techniques when the video will be processed by a computer or displayed on a computer screen. Tinned Copper Clad Steel,Professional Tinned Copper Clad Steel,Heat-Resistant Tinned Copper-Clad Steel,Tinned Copper Clad Steel Metal Wire changzhou yuzisenhan electronic co.,ltd , https://www.ccs-yzsh.com
March 08, 2024