Interlacing and Deinterlacing: Understanding Video Frame Rates

What is Interlacing?

Interlacing is a technique used to reduce the bandwidth required to transmit or store video. It takes advantage of the fact that the human eye is less sensitive to flicker than to changes in color or motion. Interlaced video is created by capturing alternate lines of a video frame in two separate passes, known as fields. This results in a video signal that has half the frame rate of a progressive video signal, but with the same perceived quality.

Deinterlacing

Deinterlacing is the process of converting an interlaced video signal into a progressive one. This is necessary for displaying interlaced video on computer screens and other devices that do not support interlaced signals. There are a number of different deinterlacing algorithms that can be used, each with its own advantages and disadvantages.

Conclusion

Interlacing and deinterlacing are important concepts for anyone who works with video. Understanding how these techniques work can help you to create and deliver high-quality video content.