The VideoLAN Forums

I shot some 1080i sample clips today with the HDR-FX1. On clip produced some line zigzag artifacts when moving the camera.

I found that the VLC player has a Video Option to "Deinterlace". I used
>linear and all the zigzag disappeard.

Can somebody give me some background data on this issue?

The clip can be downloaded in a m2t file at http://www.audiovisuelconcepts.com/m2t/HDR-FX1.0001.m2t

very short story: on old tv systems the video is transmitted odd lines first then even lines. This, given old tv-screens long fallbacktime, gives better quality than sending all lines in the correct order and rather have half the framerate. Could of course be other reasons as well.

it's also better for temporal resolution than having a half framerate non-interlaced picture, because the framerate on TV shows is really 50 fps for PAL (or 59.94 for NTSC) the TV shows are not shot at 25 fps and then interlaced...