The wave of intelligent technology is getting more and more turbulent. In recent years, the most talked about is the smart home , and the smart TV inside is awakened by the sleeping giants, causing the ups and downs of Internet technology. Ten Internet TV newcomers have appeared in the past year. Their same characteristics are based on the banner of Internet content, the intelligent custom operating system deep customization banner, and the banner of fever performance and sentiment. The only thing that makes them shy is the quality of the TV. Of course, every time they release a new product, they will spend a lot of time talking about the quality of the picture, and then they will say a lot of obscure terminology. If they don’t understand it, they will feel quite tall. People who know can only silently bless.
Why are some manufacturers’ TV quality stunned and confusing? In fact, when it comes to the most fundamental place, high-end panel technology and image processing technology is still a relatively monopolistic field. Without a large amount of technical research and development and product experience accumulation, it is impossible to have results. As newcomers who have just stepped into TV, there is certainly no such strength, and the price of their products also determines the level of the panels they use. Then what we often hear at the Internet TV conference, what are the image quality technologies that they call black technology?
I heard that this term is used by everyone.
MEMC, Chinese name is motion compensation. Almost every time the manufacturers talk about the image quality processing part, the first one mentioned it. But we have to reveal, in fact, MEMC is not a new black technology. This technology developed by Americans has long been adopted by Japanese color TV manufacturers. However, most of them were used on high-end TVs at the time (this "high-end" was caught by some manufacturers, but it was opportunistic, it was a high-end TV more than ten years ago, but now it can be counted), and in recent years Most of the products of traditional TV manufacturers will adopt this technology.
In fact, this technology is indeed an important indicator of TV. Now that everyone is constantly being brainwashed by the concept of “refresh rateâ€, motion compensation is particularly important. To put it simply, MEMC is to improve the fluency of the picture through the algorithm. The original 24Hz video is processed by the algorithm to reach 60Hz or even 120Hz, so that the video content does not drag the hardware.
Earlier there was a similar technique called pull-up/pull-down, which also raised the 30Hz content to 60Hz, but it was simple and rude, just copying the frame rate of 30Hz to 2 frames per frame. 60 Hz, if it is a 24 Hz frame rate, the current frame is copied into 2 frames, and the next frame is copied into 3 frames. However, this method does not add new screen content to the video, and the quality of the motion picture has not been truly changed. The MEMC motion compensation technology allows the chip to predict what will be the next frame of each frame, that is, to judge the motion track of the dynamic picture, and then generate the picture frame not in the original video, and insert it into the original frame. .
Why use such a technology? In fact, it is a wooden barrel principle, the hardware performance has reached the ability to decode 60Hz, and the signal frame rate of the transmission technology has reached 60Hz, but the content of 60Hz in video content is very small. So even if you use a 60Hz TV, there is no corresponding hardware that still can't achieve the best results. This is because you used 4K TV, but there is no 4K source, watching SD video is still a reason. MEMC motion compensation can be said to be only a compromise solution, but most of the program sources are 24Hz or 30Hz shooting, this technology has become a must.
However, even if many Internet vendors use MEMC motion compensation, most of them are 60Hz refresh rate, which of course will be subtly hidden. Considering the cost, it is difficult to adopt a 120Hz refresh rate panel, which also makes the use of this technology a lot wrong. But the real high-end TV in Japan and South Korea, 60Hz is only the standard for the bottoming, and the 240Hz refresh rate TV is not uncommon. Of course, this refresh rate seems to have a bit of metaphysical taste. Many people say that the refresh rate that the human eye can distinguish is 24Hz. Why is it better to watch 60Hz video than 24Hz? Is it more comfortable to watch 120Hz than 60Hz? This is also like Joe Bush thinks that Retina is the limit of the resolution of the human eye, but it is still amazing when I see the 4K resolution notebook.
Summary: MEMC motion compensation technology is an important indicator of TV picture quality. Xiao Bian feels that major TV manufacturers should make it a well-known standard technology, rather than a marketing method used to make use of it.
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