Deinterlacing is a crucial process that converts interlaced video, commonly used in older broadcasting systems, into progressive video suitable for modern displays. Interlaced video divides each frame into two alternating fields—one for odd lines and the other for even lines—to save bandwidth and ensure smooth motion on CRT TVs. However, this format causes flickering and jagged edges on modern progressive displays like LCDs and LEDs, which render entire frames simultaneously.

Deinterlacing works by merging these interlaced fields into full progressive frames through methods like weaving, blending, or motion compensation. Weaving combines both fields, blending smooths motion differences, and motion compensation uses interpolation to create natural-looking frames. The choice of method depends on the original video quality and the desired output.

This process is essential for making older interlaced formats compatible with today’s technologies. It ensures smoother playback by eliminating artifacts like flickering and combing, which are especially noticeable during motion scenes. Deinterlacing is widely used in broadcasting, digitizing archival content, and enhancing playback quality for streaming legacy videos. By improving video clarity and fluidity, it provides a better viewing experience for modern audiences.