What is the difference between a 4k camera movement and a UHD movement

Now that 4K displays have become mainstream, let's take a look at two terms that have been confused with each other: 4K and UHD, or Ultra HD. TV makers, broadcasters, and technology blogs all use them interchangeably, but they are not the same thing at first, and they are still not technically. From the viewer's point of view, there is not much difference. The short answer is that 4K is insisting, while UHD is not-although high-quality Blu-ray drives are sometimes sold in 4K Ultra HD. But there is one more point in this story. 4K and Ultra HD The easiest way to define the difference between 4K and UHD is: 4K is the professional production and film standard, while UHD is the consumer display and broadcast standard. To understand how they became so confusing, let's look at the history of these two terms. The term "4K" originally originated from the Digital Cinema Project (DCI), a consortium of film studios that standardized the production and digital projection specifications of 4K content. In this case, 4K is 4,096 x 2,160, which is exactly four times the previous digital editing and projection standard (2K, or 2,048 x 1,080). 4K means that the number of horizontal pixels (4,096) is approximately four thousand. The 4K standard is not just a resolution: it also defines how 4K content is encoded. The DCI 4K stream is compressed using JPEG2000, with a bit rate of up to 250Mbps, and a 12-bit 4:4:4 color depth. (See: How digital technology is reshaping film.) To Ultra HD, or UHD for short, is the next step in the so-called Full HD, which is the official name for the 1,920 x 1,080 display resolution. UHD increased the resolution four times to 3,840 x 2,160. It is different from the 4K resolution made above-but almost all TVs or monitors that you see advertised as 4K are actually Ultra HD. Of course, some panels are 4,096 x 2,160, which add up to an aspect ratio of 1.9:1. But most of them are 3,840 x 2,160, with an aspect ratio of 1.78:1. Why not 2160p? Now, TV manufacturers don’t seem to know the difference between 4K and UHD. But probably for marketing reasons, they seem to insist on using 4K. In order not to conflict with DCI's actual 4K standard, some TV manufacturers seem to be using the term "4K UHD", although some just use "4K". To Even more confusing is that UHD is actually divided into two. There are 3,840 x 2,160, and then there is a big improvement, reaching 7,680 x 4,320, also known as UHD. It is reasonable to call these two UHD variants 4K UHD and 8K UHD-but, more accurately, the 8K UHD specification should probably be renamed QUHD (Quad Ultra HD).