Use With Progressive Sources
When 576i is used to transmit content that was originally composed of 25 full progressive frames per second, the odd field of the frame is transmitted first. This is the opposite of NTSC. Systems which recover progressive frames, or transcode video should ensure that this field order is obeyed, otherwise the recovered frame will consist of a field from one frame and a field from an adjacent frame, resulting in 'comb' interlacing artifacts.
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Famous quotes containing the words progressive and/or sources:
“A radical is one of whom people say He goes too far. A conservative, on the other hand, is one who doesnt go far enough. Then there is the reactionary, one who doesnt go at all. All these terms are more or less objectionable, wherefore we have coined the term progressive. I should say that a progressive is one who insists upon recognizing new facts as they present themselvesone who adjusts legislation to these new facts.”
—Woodrow Wilson (18561924)
“Even healthy families need outside sources of moral guidance to keep those tensions from implodingand this means, among other things, a public philosophy of gender equality and concern for child welfare. When instead the larger culture aggrandizes wife beaters, degrades women or nods approvingly at child slappers, the family gets a little more dangerous for everyone, and so, inevitably, does the larger world.”
—Barbara Ehrenreich (20th century)