What is video definition?

Video definition refers to the quality of the visual image captured by a camera or displayed on a screen. It is determined by the number of pixels in an image, which is also known as the resolution. The higher the resolution, the sharper and more detailed the image.

Video definition is often categorized into different formats, such as:

  1. Standard Definition (SD): This is the lowest resolution format, typically 480p or 576p. It is commonly used for older televisions or smaller screens.

  2. High Definition (HD): This format is a significant step up from SD, with a resolution of 720p or 1080p. It is the most commonly used resolution for modern television screens and computer displays.

  3. Ultra High Definition (UHD): Also known as 4K resolution, this format has four times more pixels than HD, resulting in an incredibly sharp and detailed image. It is commonly used in high-end televisions, large displays, and movie theaters.

Video definition can also be affected by other factors, such as bit rate, frame rate, and compression. Higher bit rates and frame rates can improve the overall image quality, while compression can reduce the file size but sometimes at the expense of visual quality.