Electronic Security Guide - Electronic Security, Alarm Systems, CCTV, Guards, Training
Monday, December 27, 2010
Prospects for H.264 video surveillance will replace other standards.
<P> 1. Introduction </ P> <P> H.264 is the next generation video compression standard, expected in the coming years will be the first choice for the video industry standard. .This standard has been successfully used in mobile phones and digital video players and other electronic products. .For the video surveillance industry, H.264 can reduce storage costs and improve overall efficiency, thus further expands the potential applications of video surveillance. .</ P> <P> H.264 (sometimes referred to as MPEG-4Part10/AVC) is a need for a license to use the open standards on the market today can support the most efficient video compression technology. .Without affecting the image quality of the situation, with the use of M-JPEG and MPEG-4Part2 traditional compared to the standard, H.264 encoders enable the digital video file size reduced by 80% and 50%. .The ability to provide such a powerful compression capabilities, H.264 as video surveillance applications is extremely suitable for the compression standard. .</ P> <P> </ P> <P align=center> </ P> <P> at the same level of image quality, a 115-second video streams at different video bit rate under the standard comparison. .In the case of no motion compensation, H.264 encoder efficiency of at least MPEG-4 encoder than 3 times higher than the M-JPEG encoder 6 times higher. .</ P> <P> H.264 (Baseline profile) H.264 (Baseline) MPEG-4 Part 2 (No motion compensation) MPEG-4 Part 2 (no motion compensation) MPEG-4 Part 2 (With motion compensation .) MPEG-4 Part 2 (with motion compensation) Motion JPEGM-JPEGBit rate (kbit / s) bit rate (kbit / s) Time (s) Time (seconds) </ P> <P> </ P> <P> .2. reduce storage and bandwidth costs </ P> <P> compress the file by a large proportion of direct benefits is the ability to significantly reduce storage and bandwidth requirements. .For the same amount of video data, the image quality while maintaining the same situation, with the use of conventional compression technology, H.264 compression standards to support video surveillance system at least the cost of storage and bandwidth can be reduced by 50% occupied. .With the growing size of the system, as well as high-resolution images and the increasing demand for high frame rate, H.264 will be the key to a variety of system solutions distinguish factors. .</ P> <P> 3. Higher resolution and frame rate </ P> <P> according to application requirements, we can take advantage of a number of ways the advantages of H.264 high compression ratio. .Currently, in order not to exceed the storage limit of application of the provisions, people often choose to limit or reduce the resolution, frame rate, but this will have a negative impact on the video images, or blurring the details are not clear enough. .If used in such applications to support H.264 video compression standard monitoring equipment, you can get a higher frame rate and image resolution, and many other advantages, which can output high quality images. .</ P> <P> 4. Accelerate the increasing use of camera megapixels </ P> <P> H.264 megapixels camera is expected to improve the industry in monitoring the rate of adoption. .At present, the use of cameras megapixels concern is that it will produce a large amount of video data recorded. .However, as noted above, H.264 can not affect the image quality under the premise of a large proportion of large compressed files. .Thus, the highly efficient compression technology will likely lead to the fastest speed cameras used megapixels high resolution and high frame rates that require the monitoring of places such as airports, retail shops, banks and places of entertainment. .</ P> <P> 5. Prospects </ P> <P> H.264 video compression technology represents a major leap forward. .Support in many industries, as well as to meet the needs of consumers and professional users, the application (for example, QuickTime, Flash, YouTube, iPod and Play ¬ Station3) driven, H.264 used in today's market is expected to replace other .compression standards and methods. .With this format is more widely used in a variety of video surveillance equipment, system designers and integrators will need to ensure that their choice of products and vendors to support this new open standard. .</ P> <P> 6.H.264 origin </ P> <P> H.264 is the ITU Video Coding Experts Group (VCEG) and ISO / IEC Moving Picture Experts Group (MPEG) developed jointly by .next-generation video compression standard. .ISO is the International Organization for Standardization, IEC is responsible for the organization of electronic and electrical standards. .ITU-T H.264 is the name used, and ISO / IEC will be named MPEG-4Part10/AVC, because it represents a series of standard MPEG-4, a new standard. .</ P> <P> H.264 by the telecommunications and IT industry, developed jointly by ISO, as compared with the previous standards, H.264 is expected to be more widely used. .</ P>.
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