Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Progressive or noninterlaced scanning is a method for displaying, storing or transmitting moving images in which all the lines of each frame are drawn in sequence. This is in contrast to the interlacing used in traditional television systems where only the odd lines, then the even lines of each frame (each image now called a field) are drawn alternately. The system was originally known as "sequential scanning" (actually a more technically correct description) when it was used in the Baird 240 line television transmissions from Alexandra Palace, England in 1936. It was also used in Baird's experimental transmissions using 30 lines in the 1920s. The rough animation to the right compares progressive scan with interlace scan, also demonstrating the interline twitter effect associated with interlace. On the left are two progressive scan images.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.