Not all interlaced video material needs de-interlacing. Typical movie material is shot on 24 frames/s film, so when converting film to video using telecine, so each film frame can be presented by progressive segmented frames (PsF) with 4% speed-up in 50 field interlaced PAL/SECAM, or using a 2:3 pulldown process in 59.97/60 field interlaced NTSC (which can be restored to 24 frame/s in the TV set using an inverse telecine process. DVDs can either store movies using one of these methods, or store original 24 frame/s progressive video and use MPEG-2 decoder tags to instruct the video player on how to convert them to the interlaced format. Most movies on Blu-ray discs have preserved the original non interlaced 24 frame/s motion film rate and allow output in the progressive 1080p24 format directly to display devices, with no conversion necessary At present (2008), Blu-ray does not support 1080p at 50 frames/s, but does support 720p and all interlaced formats at 50 frames/s; (here are Blu-ray discs authored in 1080i format which is used typically for live footage, and such material does need to be deinterlaced. Some 1080i HDV camcorders offer PsF mode with cinema-like frame rates of 24 or 25 frame/s. Such progressive frames are packaged within the interlaced signal and can be reproduced by standard consumer television equipment.
Deinterlacing techniques require complex processing and thus can introduce a delay into the video feed. While not generally noticeable, this can result in the display of older video games lagging behind controller input. Many TVs thus have a "game mode" in which minimal processing is done in order to maximize speed at the expense of image quality. Deinterlacing is only partly responsible for such lag; scaling also involves complex algorithms that take precious milliseconds to run.
Haha!
It doesn't have to be that complicated.
One simply must find the deinterlace settings in one's video editing program when rendering one's video clip....
Try one of the options. Render a very small clip. Repeat as necessary until all the horizontal lines smooth out.
Then render the whole thing with the settings that work the best!
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