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#681 | |
Blu-ray Grand Duke
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Thanks given by: | jvonl (10-27-2020), vicious_boy (10-27-2020) |
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#683 |
Blu-ray Samurai
Sep 2013
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I totally agree with recent discussion. As is often the case, the most discussion, whether positive or negative, is generated from something that is truly remarkable. LOTR and Hobbit were both fantastic trilogies, and together were a magical journey. I can't wait to see them both in 4k!
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Thanks given by: | vicious_boy (10-27-2020) |
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#684 | |
Special Member
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Going off what you ask and expanding a little. I felt that the makers missed a trick with The Hobbit, they should have revised the plot to suit the bigger story they were trying to incorporate by shifting the White Council to a time after The Hobbit rather than forcing the stories together in a way Tolkien himself considered wrong and abandoned (1960 Hobbit). That shift would have meant all the Sauron stuff could have been left out of The Hobbit (2 movie) with a third dedicated to the White Council, Hunt for Gollum and the build up to The Lord of the Rings. It would have also meant that fans would get more Gollum which would have been met with enthusiasm. |
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#686 | |
Blu-ray Samurai
Jan 2009
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Though I am guessing one measure of the success of interpolation might be how many original frames are still maintained in the presentation. In a 48-240-60 conversion, 20% would be original frames and 80% would be interpolated frames. In a 48-60 conversion, it could potentially be the reverse, 80% would be original frames and 20% would be interpolated frames. That is if we take the assumption to be true that interpolated frames would necessarily be inferior in quality to original frames. |
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#687 |
Blu-ray Guru
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It wouldn't make any difference to go to 240 first instead of directly to 60, both would result in the same cadence, which is one real frame per second, the rest being generated ones.
If you were to only generate the missing 12 frames every second and tried sticking them in there among the real 48 ones, you'd get some kind of weird pulldown judder similar to just repeating a frame every fifth frame. I've never tried what happens if you do it this way, but I can imagine it might still be noticeable because although the frame would be interpolated from the surrounding frames instead of just repeated, it would still mean an unnatural break in the speed/flow of the video. I'm working on some high-speed Phantom footage right now, might be an interesting test to try out. |
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#688 |
Blu-ray Samurai
Sep 2013
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How did this post of mine end up in both the Hobbit and LOTR threads? I only remember posting this in the LOTR post, but here I see it in the Hobbit thread. My profile says both were posted at the same time. Go figure!
Anyway - my post still applies. I can't wait to see both in 4k! ![]() |
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#689 | |
Blu-ray Samurai
Jan 2009
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But 48 to 240 to 60 will let you keep 12 real frames and 48 generated frames per second. So if higher number of real frames per second is a desirable outcome, then 48 to 240 to 60 is better. |
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#690 | |
Blu-ray Samurai
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#691 | |
Blu-ray Guru
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#692 |
Blu-ray Grand Duke
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PQ wise they were great. First one was fine after that initial muckup, but I just don't like how it mimics that "soap opera" effect. Maybe if films had always been done at a higher frame-rate I'd be able to accept HFR more readily, but the motion blur is just too intrinsically embedded in my mind as part of the cinematic experience.
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#693 | |
Power Member
Jul 2010
Australia
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![]() At least these two trilogies work together to create one cohesive adventure story that spans generations. I'd understand more with Star Wars where the new trilogy feels "woke" and doesn't flow well with what was established prior. |
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#694 | |
Blu-ray Samurai
Jan 2009
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Say the 1st 10 seconds of footage in 48 FPS are represented this way 1R 2R 3R 4R 5R 6R 7R 8R with R indicating Real frame and the preceding number representing the frame number. Say you interpolated 48 fps up to 240 fps, you could represent it this way 1R - 1G1 - 1G2 - 1G3 - 1G4 - 2R - 2G1 - 2G2 - 2G3 - 2G4 - 3R - 3G1 - 3G2 - 3G3 - 3G4 - 4R - 4G1 - 4G2 - 4G3 - 4G4 - 5R - 5G1 - 5G2 - 5G3 - 5G4 - 6R - 6G1 - 6G2 - 6G3 - 6G4 - 7R - 7G1 - 7G2 - 7G3 - 7G4 - 8R - 8G1 - 8G2 - 8G3 - 8G4 with G representing the generated frame, the preceding number representing the preceding real frame and the following number representing the position of the generated frame after the preceding real frame. If you interpolated this 240 fps down to 60, you could represent it this way 1R - 1G1 - 1G2 - 1G3 - 1G4 - 2R - 2G1 - 2G2 - 2G3 - 2G4 - 3R - 3G1 - 3G2 - 3G3 - 3G4 - 4R - 4G1 - 4G2 - 4G3 - 4G4 - 5R - 5G1 - 5G2 - 5G3 - 5G4 - 6R - 6G1 - 6G2 - 6G3 - 6G4 - 7R - 7G1 - 7G2 - 7G3 - 7G4 - 8R - 8G1 - 8G2 - 8G3 - 8G4 with underlined and red-colored frames representing 60 fps. So in theory, you should end up with every 5th frame being the real frame in 48 -> 240 -> 60. So that is at least 20% being real frames which is better than straight 48 -> 60 which would only be 1 real frame and 59 generated frames. |
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#695 | |
Blu-ray Guru
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Going from 48fps to 60fps is a time-remapping function with a factor of 48/60 = 0.8. So for every frame in the 60fps result sequence, we only advance 0.8 frames from the 48fps source sequence. The function then becomes: Y = 1+0.8*(X-1) Where X is the 60fps output frame and Y is the 48fps source frame (we have our 60fps sequence and for each frame we want to know which frame we should display from the 48fps source sequence). A non-even frame like 7.4 means a generated frame, interpolated from frames 7 and 8, but slightly closer in time to the former. If we step through the frame numbers we get a result like this: X Y 1 1.0 2 1.8 3 2.6 4 3.4 5 4.2 6 5.0 7 5.8 8 6.6 9 7.4 10 8.2 11 9.0 ... 56 45.0 57 45.8 58 46.6 59 47.4 60 48.2 61 49.0 As you can see you get the exact same result where every fifth frame is an even number, i.e. an original, non-generated frame. |
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#696 | |
Blu-ray Samurai
Jan 2009
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![]() So I guess we can conclude that going from 48 to 240 to 60 should essentially get the same result as going from 48 to 60 with an equal proportion of real frames preserved. |
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#697 |
Site Manager
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1/4th of a sec of a Hobbit 48fps to 60fps example:
1 2 3 4 5 6 7 8 9 10 11 12 frames @48fps x5 = 11111 22222 33333 44444 55555 66666 77777 88888 99999 1010101010 1111111111 1212121212 repeat frames @240fps /4 1111 1222 2233 3334 4444 5555 5666 6677 7778 8888 9999 9101010 10101111 11111112 12121212 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 frames @60fps 100 25/75 50/50 75/25 100 100 25/75 50/50 75/25 100 100 25/75 50/50 75/25 100 frame blending % @60fps = 6 100% original frames (40%) 6 slightly blended (blurred) 75/25 frames (40%) 3 fully blended (blurred) 50/50 frames (20%) vs the @ 24fps 1/4th second 12 reduced to 6 50/50 frames, in other words, up to 6 frames of fully blended (blurred) 50/50 frames to prevent strobing. 60fps vs 24fps would only have 1/5 of the fully blurred frames of 24fps and 40% of original frames, with the 40% sligthly blended frames, lets say 40% x 0.25blend = 10% blurriness + 20% fully blurred = 30% decreased motion res vs 100% decreased motion res ![]() The way the eye motion retention works I don't think there would be much juddering. Do any of you see lots of intolerable juddering when the BBC interpolates their 50 programs into 60 discs? Have you compared a motion interpolated 60 Who or Planetoid Terra disc directly to their original 50 counterpart? And I would think motion res on the 60fps UHD would end, not 2x better than on a 24fps discs, but about 1.5x better, not counting any improvement that a dedicated AI analyzing the start stop points and throttling down or up the blending percentage of each pixel in the frame. c'est la vie en bleu |
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#698 |
Blu-ray Samurai
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Me reading this thread:
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Thanks given by: | evoof (10-28-2020), Gillietalls (11-09-2020), jono3000 (10-28-2020), jvonl (10-28-2020), LarryT (10-28-2020), Maverick177uk (10-28-2020), Seraph87 (11-01-2020), TheDarkBlueNight (10-29-2020), vicious_boy (10-28-2020), woodley56 (10-28-2020), Zombie Dude (10-28-2020) |
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