Would you believe that one of the newest camcorders by Sony (other Sony camcorders and other brands are better) can record only 15 progressive frames per second in the "Progressive Mode"? There seem to be a ghosty unsharpness when something moves.
Another example: Imagine you have the following frame: Original frame This frame consists of: Blending would do this to them: Please note, that not only the area where the movement happened is changed thru blend, but also the green main body.
You also have to know that Field1 is Position1 (higher) and Field2 is Position2 (lower).
While this term maybe somewhat inaccurate to describe the source of the artefacts, it is quite descriptive for the end result.Especially in scenes where there's movement from left to right (right to left) you see the interlacing, like in this example: The text at the bottom scrolls from right to left and thus leaves you with mice teeth because this frame consists of 2 snapshots of time, as described above. This is a scene from the music clip "Anywhere" from the performer 112.There aren't any motion interlace lines there, but this is a frame where there was a short flash, thus there's a difference from one field to the other.This site shows you how to make brilliant looking Div X video (from TV, DVB, DV, DVD etc) for archiving purposes OR how to reduce file size to produce good-looking yet small Div X footage. Note: The timeline of your analog camcorder is usually different.If you are dealing with Div X, this site features a few video statistics and experiments, that may be of some interest for all video publishers and Div X enthusiasts. Analog camcorders, VCRs etc do not mix the recorded pictures. Analog camcorders use "odd" and "even" sets of scan lines, too, but they don't intermix them into 1 frame. Hauppauge Win TV) capture 25fps=50 fields per second, so in the end on your harddisk it makes no difference to say 25 (interlaced) digital frames per second or 50 not interweaved analog fields per second. Here is an example of what your digital camcorder does: Capture field1 (captures at half the height, or full height and then resizes down): Capture field2: Field2 They pretty much look the same. You can see by comparing the position of the thumb and the keyboard keys.Here is another example (after deinterlacing): There is even something you could call brightness interlacing. Because even with the methods described on this site it's hard to get perfect results. It's pretty Kylie and pretty Jason Donovan performing "Especially for you" in 1988 in "Top of the Pops" As you see there are some deinterlacing artefacts. One second of a movie consists of 25 frames = 50 interlaced images.