Date：2013-05-23 Hit：119
After several years of development, high-definition monitor market ushered in an unprecedented blowout. Optimistic estimate, especially 720P HD camera network HD cameras, nearly two years will always remain 300% -500% compound annual growth rate. At this rate, a few years, high-definition video camera, there may account for half of the entire camera market.
HD Camcorder development process and the market situation < / div>
for the monitoring system, HD is a complete technical concepts, including from the image acquisition, conversion, compression, transmission, storage, control, and display a complete image processing workflow. And the entire video surveillance system, the front-end image acquisition device that camera + lens, is the core of the system, or the entire system can be likened to the "eyes." If there is no front camera + lens, video surveillance can not be achieved, just as human eyes can not see everything in the world is not the same. If there is no HD camera + HD lens, the monitoring system will not be able to capture high-definition video surveillance images.
years, the video surveillance industry researchers has been to improve the image resolution video surveillance rate of unremitting efforts. With video technology, especially the image sensor chip technology continues to evolve, the clarity of the video surveillance cameras continues to improve, the development of horizontal resolution from 380 lines to 420 lines, 480 lines, and then to 540 lines, 600 lines, 650 lines. Before the advent of high-definition video camera, analog camera resolution almost every year or every two years, there is a marked improvement, which has become the industry attention.
2006, the advent of high-definition network camera IPC, and soon in the industry set off & ldquo ; HD storm. "
2009 years to conform to high definition market, set up jointly by several manufacturers in the industry HD -CCTV Alliance, the attempt to HD-SDI HD radio and television transmission mode borrowed into security monitoring system, shortly thereafter, HD-SDI HD cameras come out.
Currently, the industry's popular argument is that the IPC as the first generation HD monitoring, SDI called second-generation high-definition monitor.
HD monitor current market is basically divided into two camps: one ONVIF, PSIA is Alliance Network HD, two based on HD-CCTV digital HD for the Union.
2012 years, the industry has emerged a third HD solutions - & mdash ; HD-MDI.
the standard measure of image resolution is the resolution, in pixels, resolution more high, the sharper the image. The so-called HD, SD, also reflected in the difference in image quality. Based on this criterion, the current mainstream video surveillance market are among the CIF and D1 SD. In the analog era, is generally believed that as long as the camera is higher than 480 lines of horizontal resolution, can be called a high-definition camcorder. For digital cameras, the resolution of 720P that is more than 1.3 million pixel high-definition camera can be called.
in the field of video surveillance, HD and megapixels are not the same thing. In effect, the whole HD and megapixels are pointing to a higher image resolution than normal level, so in many measuring points and effect, they are very close, but in essence, has great difference. The so-called high-definition, in fact, not just a simple concept, it has a very clear metrics for analog system, 420 lines and 480 lines for the low line CCD, only 270,000 pixels; 540 pixels and 600 lines of 42 Wan; 650 lines, 700 lines, only about 550,000 pixels. After 2006 "megapixels" HD cameras come out, "Million HD" resolution is actually 1.3 million pixels. Therefore, simply megapixels HD surveillance cameras say is inaccurate, exaggerated. In accordance with generally accepted industry now HDTV standard, truly meet the high-definition video surveillance format is currently only three - 720p, 1080i and 1080p.
million after the advent of high-definition video camera, the video surveillance market seems to inject a stimulant, For a time, IPC, HD-SDI, 960H, HD-MDI, and other high-definition programs race debut, very lively. Result of market competition to bring technology continues to improve, greatly enriched the connotation of high-definition video surveillance, video surveillance industry has accelerated the development of the industry has also accelerated the new round of reshuffle.
HD million since 2006 after the advent of market applications have come a long road has not been easy. Until 2010, it ushered in the spring high-definition applications. Thus, 2010 is called "HD first year."
2011 years some manufacturers pioneered the HD-SDI cameras. With HD-SDI product line is improving, HD and SDI IPC market soon formed two camps.
HD-SDI IP surveillance cameras like the video signal is compressed and packaged transmitted through the network, which is based uncompressed digital signals over coaxial cable high-speed transmission, no TCP / IP protocols such problems, because the video is transmitted in real time, it will not appear in the video network system interruption or delays.
HD and digital high-definition network par development, analog camera technology has made leaps of improvement.
2010, the company made by Sony 960H technology, the largest single sampling point upgrade from the 720 to the 960. The technology has changed so that analog cameras to see a ray of hope, new technologies bring about 55 million pixels of video images, which greatly enhanced the analog camera video image resolution. 960H camera color state lines up to 650 lines, black and white state up to 700 lines, compared to ordinary analog cameras, clarity has been greatly improved.
even though everyone knows HD is to monitor the development direction of the industry, but in reality applications , the analog system still occupy most of the market. In order to simulate high-resolution cameras continued vitality, Samsung, Panasonic, Sony and other major camera manufacturers have added to 960H of the army, launched a technology solutions based 960Hsenor full range of products.
initially by Techwell and Sony jointly define and develop 960H analog HD solutions in which a new generation of analog cameras side using Sony 960HCCDSensor, most domestic manufacturers introduced 960H HD camcorder analog cameras, are used SonyEffio solutions, Effio is a powerful image processing capabilities of the DSP chip.
but compared to the minimum starting from 720P HD network camera, 1.3 megapixel far more than the image resolution of 550,000 pixels 960H technology, 1080P specifications of the two million pixel image resolution is to make 960H technology catch up.
either from the resolution, image display is fluency from the image point of view, HD than SD advantage. From the resolution point of view, 720p resolution is CIF resolution of 9 times, 1080i/1080p resolution is CIF resolution 20 times, in the same display environment, HD will be much clearer. From the display effect, supports both high definition large screen display, and supports 16:9 widescreen display, which can greatly enhance the user's viewing experience. From the fluency of view, HD support higher frame rates, such as 1080i/1080p can support 720p and 60 frames / sec or 60 fields / sec, so the image fluency twice as high than the standard definition.
Currently, HD camcorder major brands and manufacturers: Samsung, Sony, Panasonic, Honeywell , Axis, Bosch, Schneider Electric, Hikvision, Dahua, Albert world, Infinova, LG, Yaan, wave-particle, Hanbang, Jingyang, Kodak, Jin Sanli, tomorrow, AEBELL, Yellow, Vanguard Security, Xiang Fei, Yonghui, in Ying Xin, Jiaxin Jie, Li Ling, red apples, three-chen, eh ratio, Bao An, etc..
According to incomplete statistics, as of now the country has the capacity to produce high-definition video camera manufacturers (not including foreign firms) have more than 300, mainly concentrated enterprises in Shenzhen, Guangdong, Zhejiang, Tianjin, Jiangsu, Shanghai, Beijing and other places, if divided by region, the Pearl River Delta region accounts for about 60% (of which 50% concentrated in Shenzhen) Yangtze River Delta region accounts for about 30 percent, the Beijing-Tianjin region accounts for about 7%, and the remaining regions together accounted for approximately 3%.
According to the survey, in 2012 the national high-definition cameras (including IPC, HD-SDI, HD-MDI, 720p, 1080i, 1080p, and all included) shipments exceeded 3.6 million units, accounting for the total market to the camera 16% of the.
in the long run, high-definition camera resolution will continue to improve, and perhaps in the future, when the When mainstream 1080P, 720P will be phased out and no longer included in the definition of the column. But whether it is 960H or 720P, in these years, both for the enterprise profitable returns. Even in the future be eliminated, they promote the development of video surveillance industry, for the video surveillance industry's contribution to development, are worthy of concentrated heavy ink pen.
【Back】
