Produce Sales Mpeg2 IP SD Encoding Modulator Assembly Factory

15-08-2019

Mpeg2 IP SD Encoding Modulator Assembly

At present, many occasions need to use hd video communication, for hd video communication, many people still have a wrong understanding, that only some special industries will need to understand the quality of communication effect, such as doctors to carry out surgery, antique detection, etc. As we all know, in any application, the effect of using hd video communication will be much better than the traditional analog video communication effect. The reason why we think hd video is only used for special applications is that we haven't realized the effect produced by hd video quality.


Produce Mpeg2 IP Encoder Assembly

Hd video codec is widely used in video conference, security monitoring, medical teaching, classroom recording, unattended, court hearing system and other environments that need hd video. Although there are several video compression standards that can reduce video signal bit rate to a reasonable range, hd video codec is the latest h.264 standard and is clearly the best choice. Compared with previous international standards such as h. 263 and mpeg-4, h.264 makes full use of various redundancy, statistical redundancy and visual physiological redundancy to achieve efficient compression.


The biggest advantage of h.264 is the high compression ratio of hd video codec, which is more than 2 times of mpeg-2 and 1.5 ~ 2 times of mpeg-4 under the same image quality conditions. Secondly, LowBitRate plays an important role in the high compression of h. 264. Compared with mpeg-2, mpeg-4asp and other compression technologies, h. 264 compression technology will greatly save users' download time and data traffic charges. In particular, h.264 has high compression ratio and high quality and smooth image. Therefore, video data compressed by h. 264 requires less bandwidth and is more economical in network transmission.


Sales Mpeg2 IP Encoder Assembly

In an ideal world, video would be encoded only once with an efficient codec. If decoded, the resulting video stream produces full resolution video. In addition, hd video codecs, ideally, can send a small portion of the encoding video without additional processing if the lower resolution or bandwidth of the video stream needs to be extended further into the network to lock in lower performance devices. This smaller video stream makes it easier to decode and produce lower resolution video. In this way, the hd video codec can encode the video stream itself to accommodate the channel bandwidth it needs to travel and the performance of the target device. These are the qualities of extensible video codecs.


An extensible video encoder (h. 264 SVC) extended to h. 264 is designed to deliver the benefits of the above ideal case. It is based on the h. 264 advanced video codec standard (h. 264 AVC) and highly leverages the tools and concepts of the original codec. However, the resulting code video is spatially temporarily extensible and extensible in terms of video quality. That is, it can produce decoding video at different frame rates, resolutions, or quality levels.


The SVC extension introduces a concept that the original h.264 AVC encoder - the layers within the coding video - does not exist. The hd video codec base layer encodes the minimum temporary, spatial, and quality representations of a video stream. Each layer USES the base layer as a starting point to encode additional information, so as to use the encoding results for reconstruction of high quality, high resolution or; Temporary video version.


Mpeg2 SD Encoding Modulator Assembly Factory

By decoding the base layer and only the required later enhancement layer, the hd video codec can produce a video stream with desired characteristics. In the coding process, a particular layer is carefully decoded using only references to the lower layers. In this way, the encoding stream can be truncated at any point, but still maintain a valid, decodable video stream.


Extensible video codecs have been developed for many years. The broadcast industry is tightly controlled by established standards, and hd video codecs have been slow to adopt the technology. Advances in processors, sensors, and display technologies are exploding video applications. High-definition network video encoder Internet and IP technology are seamlessly bringing video servos to a more diverse and remote community of display devices. Extensible video codecs such as h.264 SVC meet the needs of many of these systems, and they may lead to widespread adoption of video as a communications medium.


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