Technology / Television (TV) / Interlaced Scanning: In a television display, interlaced scanning refers to the process of re-assembling a picture from a series of electrical (video) signals. The 'standard' NTSC system uses 525 scanning lines to create a picture (frame). The frame/picture is made up of two fields: The first field has 262.5 odd lines (1,3,5...) And the second field has 262.5 even lines (2,4,6...). The odd lines are scanned (or painted on the screen) in 1/60th of a second and the even lines follow in the next 1/60th of a second. This presents an entire frame/picture of 525 lines in 1/30th of a second.
Technology / Television (TV) / Interlaced Video: TV frames consist of two fields of alternating lines that are scanned onto the picture display unit (e.g., picture tube) in rapid sequence to produce an interlaced video image. MORE
Technology / Television (TV) / Noninterlaced Video: Each line is scanned during each total vertical (full) screen refresh. Computer monitors use typically noninterlaced video. MORE