576 (576i) resolution the standard image is that in most countries that the frequency distribution of electrical energy, it's 50 Hz. for player images television can be used. In this standard, the number of lines or number of pixels vertical 576 PCs have IP indicates the type of scan images for interwoven (interlaced).

This symbol and the symbol of any standard other video, along with the number of fields the image in a second, or the number of image frames (which is usually half the number of fields) also are shown that the number of field immediately and the number of frames after a line diagonal entries are like 576i50 (number field: 50) or 576i/25 (the number of frames: 25).