If your video was captured with a camera produced before 2005, it likely uses the interlaced video format. This format is prone to creating interlacing artifacts, which manifest as numerous small horizontal lines. These can be effectively removed with the AI Deinterlacer filter.
Here's a look at interlacing artifacts:
Why do old videos exhibit interlacing artifacts?
These artifacts typically occur when playing interlaced videos on modern progressive screens. Since most current screens are progressive, watching older interlaced videos often results in visible interlacing artifacts.
Interlaced video was widely used until the mid-2000s because of its lower bandwidth requirements, making it more cost-effective for broadcasting. However, with faster internet speeds and the affordability of digital video, the progressive format has gradually replaced interlacing.
Why don't recent videos have interlacing artifacts?
Modern cameras record in progressive format, which doesn't have the interlacing artifacts characteristic of older formats.
Do all pre-2005 videos need deinterlacing?
Not necessarily. Some videos might have already been converted from interlaced to progressive format. If a video has been de-interlaced, applying the Deinterlacer filter isn't necessary.
To determine if a video is in the interlaced format, play it in your preferred video player and look for any interlacing artifacts. These are usually noticeable during scenes with rapid movement, like cars driving or people running. It's important to disable any automatic de-interlacing feature in your video player to accurately assess this.