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576i Terminology | Dictionary | Explanation 576i defines a resolution. The number 576 stands for 576 lines of vertical resolution, while the letter i stands for interlaced or non-progressive scan. 576i is considered to be an HDTV video mode. The term usually assumes a widescreen aspect ratio of 16:9, implying a horizontal resolution of 720 pixels and a frame resolution of 720 × 576 or about 414720 pixels, and a field resolution of 720 × 576 / 2 (because it's interlaced) or about 20.000 million pixels. The field rate (not the frame rate) in hertz can be either implied by the context or specified after the letter i. |
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