Interlaced Video
Interlaced video is a way of showing videos where the image is displayed in alternating lines. Instead of showing the whole image at once, it first shows every other line, then goes back to fill in the gaps with the remaining lines. This method was common in older TV systems like NTSC and PAL.
Interlacing : Advantages , Problems, Working
Interlacing specifies how the image is produced in the system’s display unit. An interlaced display creates an image by scanning each line, followed by a scan of the line opposite the preceding line. It offers a quicker refresh rate. The disadvantage of this strategy is that the content displayed on the screen may fluctuate or have visible lines in it.