Progressive Video

Progressive video is a form of video compression also known as 480p. It makes use of horizontal lines to make up the image. This form of video displays consecutive video frames. Thus, progressive videos results in better, smoother, fast sequences, providing fluidity and sharpness to the video.

This is a method of displaying images on a TV screen. This is largely used in CRTs, HDTV displays and computer monitors. It provides a more detailed image on the screen and is clutter-free. This is why it has high bandwidth requirements, which was originally a limitation but no longer exists.

Progressive Video

Two different techniques are used to process digital video today. These are interlaced and progressive scanning methods. 

To use progressive video, both the screen and the source must be compatible with progressive scan. In this process, the whole image is refreshed in each cycle. For example, with a progressive scan video at 60hz, the entire image will refresh 60 times per second. Quick transitions provide a smooth display.

An interlaced video frame consists of two fields taken in sequence: the first contains all odd lines of the image and the second contains all even lines. Analog television used this technique because it allowed less transmission bandwidth while maintaining a high frame rate for smoother and more realistic motion.

For more information about the images of videos;