The “4k” acronym stands for “resolution”, which refers to the resolution of a 2K video (or 4K if you are using a smartphone) as opposed to a 1080p video (also known as high-def). The term comes from the 4,000 lines of text on the back of an old VHS video player.
How important is video resolution?
While this is a complicated topic, there are four main factors that count in video resolution:
1. Video Format: 4K, 1080p, and HDTV video are different from each other, but most people will still say 4K is the most common format for most consumer video.
Most mobile cameras and smartphones are 4K capable, but most 4K screens and phones have been around for a long time and are widely available. The main question here is whether or not the screen resolution can meet the needs and expectations of consumers. It is also important to note that 4K video is typically used in 3D (anamorphic), not 2D (flat).
3D Video Resolution: If a video is in 3D and a smartphone or TV does not support 3D, then it will still look fine. Most smartphones and some 4K TVs are able to support 3D from a display, and even some TVs with 3D capabilities can be set to a resolution that supports 3D.
HDTV resolution: Most HDTVs are 4K capable, even if the picture quality isn’t great. HDTVs are usually set to 4K as a default setting (there are exceptions, such as high-end TVs and 3D-capable TVs), but many 4K TVs also offer more advanced features such as color saturation and sharpening.
3DTV (also known as “3D”): In the past, almost everyone could have a TV that was capable of reproducing 3D visuals. 3D technology actually took off in the mid-1990s thanks to TVs such as the Samsung 3D set that had multiple monitors at the same time. The advent of 3D-capable smartphones has also made 3D-capable TVs and phones more readily available over the years.
2. The Resolution of the Camera: HD cameras generally have a resolution that is twice as high as your 4K TV. That’s because the camera has to take more images to do the same thing. There can be an issue, however, when a camera camera is taking photos at a higher resolution
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