What is Video Resolution?

What is Video Resolution?

With so many Video conference jargons around, it becomes confusing to understand which one is what and how it is important for a video call. One of them is Resolution, which is measured in pixels. Resolution is combination of width & height are standardized and given a name that describes the dimension information. By closely looking at a display, one can identify & see dots arranged in grid pattern, these groups are called pixels, therefore Pixels are the smallest point or dot that display color in an image.   

Resolution or Pixels can be seen as parameter which derives content/image sharpness, which means higher the resolution or more of pixels, better the sharpness. It is not the only factor which implies picture quality but it is important one for sure. Resolution is denoted by a syntax ~ Horizontal X Vertical Lines which are generally used in of form 1280 x 720, 1920 x 1080 which is Column Width in pixels and Lines height in pixels. For e.g. 720 stands for 720 horizontal scan lines of image display resolution (also known as 720 pixels of vertical resolution), similarly A 480p video is made up of 480 lines stacked one on top of another, with each line being 852 pixels wide, often shown as 852×480 resolution.



Further shorthand has been given to these pixel combinations for example 720p, 480i, 1080p and many more. You must be thinking, now why we have these i and p alphabet attached to the Shorthand numbers. These are the techniques used for scanning. We will talk about these later in the section.

Why I should care about Numbers..1080, 480i… ?

Ultimately, the differences between 720p, 1080i, and 1080p etc display resolutions boil down to two factors: the number of lines in the resolution and the type of scanning technology. Let’s talk about these numbers-

Resolution 2

The more pixels the better the resolution, the better the resolution the more detail exists in the image, the more detail that exists in the image results in better overall image quality for our eyes to perceive.