480i60 Deinterlacing Method скачать в хорошем качестве

480i60 Deinterlacing Method

My attempt at deinterlacing a 480i 60-fields/frames-per-second (where two fields do not form the same frame) video into 480p 60-progressive-frames-per-second. The approaches I didn't discuss because they result in 30fps footage: -BLEND: Blurring two adjacent fields into a single frame. E.g. fields 1 and 2 become frame 1, fields 3 and 4 become frame 2, fields 5 and 6 become frame 3. Other than slightly blurring the image and making the motion less fluid, there's not much wrong with this one. -No deinterlacing filter at all. Both fields are shown at the same time, but without any sort of blurring. This is the "default" way a lot of digital devices interpret interlaced analog video, and doesn't look very good. It makes the image look all shredded. -DISCARD: Only showing half of the fields, and discarding the other. E.g. field 1 becomes frame 1, field 3 becomes frame 2, field 5 becomes frame 3. The only benefit this has over any of the other ones is the image looks neither shredded or blurry. But it also cuts the resolution in half, so it's by far my least preferred one. The two main approaches for a 60fps result: -LINEAR 2x: Each progressive frame contains a single field. E.g. field 1 becomes frame 1, field 2 becomes frame 2, field 3 becomes frame 3. Somewhat similar to the "discarding" approach, except all fields are kept; the even numbered fields are offset downwards by one pixel. This results in the sharpest looking video with smooth motion, but risks becoming choppy if any frames are dropped. As long as that doesn't happen, this one's my favorite because it most closely resembles how analog video would look on a CRT TV. -BLEND 2x(*?): Blurring all adjacent fields into a single frame. E.g. fields 1 and 2 become frame 1, fields 2 and 3 become frame 2, fields 3 and 4 become frame 3. Similar to the other blurring approach, but since each field is blurred together with both the previous and the next field, it retains smooth 60fps motion. Only issue with this one is the blurring makes moving stuff look less sharp. The method I describe in the video: -Take a video or signal deinterlaced with LINEAR 2x, and duplicate it over itself. Make one of the duplicates be delayed by one frame. Then change that duplicate's opacity somewhere between 50% or 0% (I suppose 100% could work too). Settings closer to 50% will be more similar to the 60fps Blend method, with less flickering adjacent frames being more similar at the cost of a blurrier look. Settings closer to 0% will make movement look sharper, but reintroduce flickering and make the video look chunkier if downsampled to a lower framerate.