Which resolution formats are typically included in HD Standards?

The resolution formats that fall under HD (High Definition) standards include 720p, 1080i, and 1080p. These standards represent varying levels of detail and clarity in video production.

720p, which is also known as HD Ready, has a resolution of 1280 x 720 pixels and is often the minimum required for HD content. It offers a significant improvement over standard definition formats.

1080i, or Full HD, has a resolution of 1920 x 1080 pixels but displays the image in interlaced mode, meaning that it refreshes alternating lines of the image. This format can provide high quality suitable for broadcasts, although the interlacing can affect how motion appears on screen.

1080p represents Full HD in a progressive scan format, meaning the entire image frame is delivered in each refresh cycle, resulting in smoother motion and a sharper image, particularly noticeable during fast-paced scenes.

The inclusion of these three formats reflects the industry's acceptance of them as standards for delivering high-quality video, distinguishing them from other formats like 480p, which is considered standard definition, or higher resolutions like 4K, which exceed the typical HD classification.