Moment, H.265 is very hot, the major manufacturers in China,for example,Hikvision, Sysvideo launched a number of models, a variety of types of H.265 products. Meanwhile, H.265 video compression as a technology emerging in the various security magazine, filled with our eyes. So why security market need H.265?
Let's take a look at the security of the development process. In the year 2000, the first DVR come out, marking CCTV video surveillance from analog age to the digital age. Thereafter digitization process out of control, and directly contributed to the subsequent network. By the year 2007, Histream introduced the industry's first high-definition IP camera, opened the video surveillance network, high definition prelude. In 2013, Hikvision launched the world's first Smart IPC, marking intelligent video surveillance formally entered the era. From the morphological evolution of the product, technical route, we can clearly see a thread - that is IP-based. At the same time, along with the development of IP-based security products, video encoding technology is also in constant progress.
If we sort out the context of video compression standards development, video compression technology is a time to change the history of security monitoring, and promote the development of the depth of the security industry. In the early stages of security monitoring, MPEG-1, MPEG-2 algorithms is introduced into the field of security monitoring, security prompted the arrival of the digital age. In the late stage of digitization, respectively, by the two organizations launched a H.263 and MPEG4-P2, but also cause a variety of video compression standards flooded the security chaos. As we all know, the standard's purpose is to establish a common standard, we abide by in order to save resources, reduce costs, however, the more common standard means no standard to follow; and because of these standards is not perfect, we can not promote better security the network development, which means unity and the urgent need to improve standards. H.264 video compression emergence of multi-standard end of an era, and its advantages in coding performance, so that the whole network security industry on its way forward. The development stage, H.264 video compression standard has been more clear unbearable pressure, slow the pace of development and advancement of security, security requires a far more powerful force to promote the development of a large network. At this time, as a new video compression technology H.265 emerged.
H.265, gives the most intuitive feeling seems to be "it will enhance the coding efficiency more than doubled, effectively reducing output video bit rate." Indeed, comparative tests have shown repeatedly in the same picture quality as compared to in H.264, H.265 coded by the size of the video stream reduced by about 39-44% compared to H.264. Due to the different measurement methods of quality control, this data will be a corresponding change. In the current mainstream resolution as an example, 1080p full-time only need about 1.5 ~ 2M rate. In addition, with the upgrading of the resolution, H.265 rate will decrease more, several tests showed, H.265 network camera at 4K ultra-HD resolution can be obtained as compared to H.264 reduced by 50% to 60 percent rate. In terms of functionality and performance, H.265 to H.264 has almost comprehensive progress for comprehensive than the current video compression standard, which makes H.265 become the undisputed current "the strongest."
Using the strongest video compression technology is necessary to have supporting hardware performance to meet demand, and security hardware and just ready to H.265. From security monitoring hardware development, when the arrival of the digital stage, is widely used in ASIC architecture, the application for the later DSP architecture algorithms such as MPEG-4 provides a good application environment. With the development of technology, with stronger performance SOC architecture into the mainstream, with an initial approach is the integration of ARM and 1-2 functional hardware, low cost, good performance, so that H.264 can flex its muscles in the security, but also It prompted the network security monitoring process. SOC architecture development up to now, has been integrated into the big stage, a variety of functions can be integrated hardware ARM, DSP, ISP, encoding options, namely multi-core processors. Currently, multi-core processors with high performance, low power consumption and other advantages are gradually replacing traditional single-core processors become mainstream market. Security has also been the development of hardware as "a more efficient video compression algorithm" ready.
Throughout the development of security monitoring, video compression technology directly contributed to advancing the security industry, and the development of hardware technology is well protected video compression technology applications, three of the same strain, making H.265 inevitable future development trend, just like the original HD IP network camera appears the same.
It can be found that technological innovation leading the progress of the times, pay attention to efficiency in the present era, H.265 is undoubtedly the best choice.
H.265 NVR (network video recorder) can effectively reduce the cost of video surveillance storage and space applications, enabling ultra high-definition video surveillance to become a reality. As users of the surveillance video quality have become increasingly demanding, high-definition video applications in the security monitoring is becoming increasingly popular, and the resulting sharp rise in the cost of storage and space. Compared with H.264 encoding technology is now being used, the characteristics of H.265 high compression ratio can save about half the storage space, thereby significantly reducing storage costs of the video. With the development of semiconductor technology to solve the bottleneck of the computational complexity of H.265, the ultra-high-definition monitor applications, like H.264 replace the previous MPEG-2, like, H.265 will inevitably replace the current H.264 technology.
Compression performance improvements, reduced output rate, this also means that H.265 will further promote HD even ultra-smooth HD video transmission in 4G network. In today's world, increasingly mobile, there is a growing need for anywhere, anytime, can more easily access the desired content and services via any terminal. 4G wireless technology can lower the cost of a single bit support higher data capacity, and thus significantly improve the commercial viability of video services. Is expected that this trend will continue in the coming years, the bandwidth requirements of video content will be further reduced, operators will obtain the necessary solutions and network flexibility to cost-effectively deliver true mobile video and multimedia experience to the user. On the other hand, the display technology of the mobile terminal is toward ultra-ultra-HD resolution and ppi direction. Therefore, H.265 high compression rate characteristics, will further promote the ultra-high-definition video in HD even under 4G network application popularity smooth transmission.
As mentioned above, the hardware development has matured, H.265 network cameras will quickly achieve on multicore processors terminals. Multicore processors with its high performance, low power consumption advantages are gradually replacing traditional single processor into the mainstream market. With the progress of technology and application needs expand, the more powerful multicore will demonstrate its performance advantages. H.265 video coding technology in the design of parallel implementation will be taken into account. Tile division mechanism so that the newly added previous slice, frame or GOP coarse-grained data parallelism units more flexible, more suitable for parallel on the same structure of multicore processors to achieve. Dependentslice and WPP mechanism to solve the problem in the past H.264 entropy coding and other aspects of encoding techniques can not be implemented in parallel, making the whole process of encoding and decoding DCT, motion estimation, motion compensation division, deblocking filter, entropy coding module task more balanced thereby significantly improve the speedup.
H.265, with the perspective of development of high-definition future conditions are ripe, history has arrived.
Progress and development of video coding technology
Let's take a look at the security of the development process. In the year 2000, the first DVR come out, marking CCTV video surveillance from analog age to the digital age. Thereafter digitization process out of control, and directly contributed to the subsequent network. By the year 2007, Histream introduced the industry's first high-definition IP camera, opened the video surveillance network, high definition prelude. In 2013, Hikvision launched the world's first Smart IPC, marking intelligent video surveillance formally entered the era. From the morphological evolution of the product, technical route, we can clearly see a thread - that is IP-based. At the same time, along with the development of IP-based security products, video encoding technology is also in constant progress.
If we sort out the context of video compression standards development, video compression technology is a time to change the history of security monitoring, and promote the development of the depth of the security industry. In the early stages of security monitoring, MPEG-1, MPEG-2 algorithms is introduced into the field of security monitoring, security prompted the arrival of the digital age. In the late stage of digitization, respectively, by the two organizations launched a H.263 and MPEG4-P2, but also cause a variety of video compression standards flooded the security chaos. As we all know, the standard's purpose is to establish a common standard, we abide by in order to save resources, reduce costs, however, the more common standard means no standard to follow; and because of these standards is not perfect, we can not promote better security the network development, which means unity and the urgent need to improve standards. H.264 video compression emergence of multi-standard end of an era, and its advantages in coding performance, so that the whole network security industry on its way forward. The development stage, H.264 video compression standard has been more clear unbearable pressure, slow the pace of development and advancement of security, security requires a far more powerful force to promote the development of a large network. At this time, as a new video compression technology H.265 emerged.
H.265, gives the most intuitive feeling seems to be "it will enhance the coding efficiency more than doubled, effectively reducing output video bit rate." Indeed, comparative tests have shown repeatedly in the same picture quality as compared to in H.264, H.265 coded by the size of the video stream reduced by about 39-44% compared to H.264. Due to the different measurement methods of quality control, this data will be a corresponding change. In the current mainstream resolution as an example, 1080p full-time only need about 1.5 ~ 2M rate. In addition, with the upgrading of the resolution, H.265 rate will decrease more, several tests showed, H.265 network camera at 4K ultra-HD resolution can be obtained as compared to H.264 reduced by 50% to 60 percent rate. In terms of functionality and performance, H.265 to H.264 has almost comprehensive progress for comprehensive than the current video compression standard, which makes H.265 become the undisputed current "the strongest."
Using the strongest video compression technology is necessary to have supporting hardware performance to meet demand, and security hardware and just ready to H.265. From security monitoring hardware development, when the arrival of the digital stage, is widely used in ASIC architecture, the application for the later DSP architecture algorithms such as MPEG-4 provides a good application environment. With the development of technology, with stronger performance SOC architecture into the mainstream, with an initial approach is the integration of ARM and 1-2 functional hardware, low cost, good performance, so that H.264 can flex its muscles in the security, but also It prompted the network security monitoring process. SOC architecture development up to now, has been integrated into the big stage, a variety of functions can be integrated hardware ARM, DSP, ISP, encoding options, namely multi-core processors. Currently, multi-core processors with high performance, low power consumption and other advantages are gradually replacing traditional single-core processors become mainstream market. Security has also been the development of hardware as "a more efficient video compression algorithm" ready.
Throughout the development of security monitoring, video compression technology directly contributed to advancing the security industry, and the development of hardware technology is well protected video compression technology applications, three of the same strain, making H.265 inevitable future development trend, just like the original HD IP network camera appears the same.
It can be found that technological innovation leading the progress of the times, pay attention to efficiency in the present era, H.265 is undoubtedly the best choice.
H.265 encoding and technology has obvious advantages
H.265 NVR (network video recorder) can effectively reduce the cost of video surveillance storage and space applications, enabling ultra high-definition video surveillance to become a reality. As users of the surveillance video quality have become increasingly demanding, high-definition video applications in the security monitoring is becoming increasingly popular, and the resulting sharp rise in the cost of storage and space. Compared with H.264 encoding technology is now being used, the characteristics of H.265 high compression ratio can save about half the storage space, thereby significantly reducing storage costs of the video. With the development of semiconductor technology to solve the bottleneck of the computational complexity of H.265, the ultra-high-definition monitor applications, like H.264 replace the previous MPEG-2, like, H.265 will inevitably replace the current H.264 technology.
Compression performance improvements, reduced output rate, this also means that H.265 will further promote HD even ultra-smooth HD video transmission in 4G network. In today's world, increasingly mobile, there is a growing need for anywhere, anytime, can more easily access the desired content and services via any terminal. 4G wireless technology can lower the cost of a single bit support higher data capacity, and thus significantly improve the commercial viability of video services. Is expected that this trend will continue in the coming years, the bandwidth requirements of video content will be further reduced, operators will obtain the necessary solutions and network flexibility to cost-effectively deliver true mobile video and multimedia experience to the user. On the other hand, the display technology of the mobile terminal is toward ultra-ultra-HD resolution and ppi direction. Therefore, H.265 high compression rate characteristics, will further promote the ultra-high-definition video in HD even under 4G network application popularity smooth transmission.
Conclusion
As mentioned above, the hardware development has matured, H.265 network cameras will quickly achieve on multicore processors terminals. Multicore processors with its high performance, low power consumption advantages are gradually replacing traditional single processor into the mainstream market. With the progress of technology and application needs expand, the more powerful multicore will demonstrate its performance advantages. H.265 video coding technology in the design of parallel implementation will be taken into account. Tile division mechanism so that the newly added previous slice, frame or GOP coarse-grained data parallelism units more flexible, more suitable for parallel on the same structure of multicore processors to achieve. Dependentslice and WPP mechanism to solve the problem in the past H.264 entropy coding and other aspects of encoding techniques can not be implemented in parallel, making the whole process of encoding and decoding DCT, motion estimation, motion compensation division, deblocking filter, entropy coding module task more balanced thereby significantly improve the speedup.
H.265, with the perspective of development of high-definition future conditions are ripe, history has arrived.
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