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Updated Interpolation (markdown)

Niklas Haas 2015-03-23 09:18:54 +01:00
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Interpolation.md

@ -102,4 +102,4 @@ As you can see, the overall appearance looks similar to smoothmotion, but
instead of frame transitions alternating between sharp and blended, each frame
is always blended into the next one.
There is also a theoretical (unimplemented) mode of operation known as "Sphinx", which is based on interpolating all three dimensions at the same time using a carefully constructed filter that has a perfectly spherical frequency response, which is speculated to be better at preserving frequencies on diagonal lines (eg. static images in motion). The naming is based on a continuation of Sinc and Jinc, with Sphinx standing for sphere as the 3D analog of the others, which are for 1D and 2D, respectively.
There is also a theoretically plausible mode of operation known as "Sphinx", which is based on interpolating all three dimensions at the same time using a carefully constructed filter that has a perfectly spherical frequency response, which is speculated to be better at preserving frequencies on diagonal lines (eg. static images in motion). The naming is based on a continuation of Sinc and Jinc, with Sphinx standing for sphere as the 3D analog of the others, which are for 1D and 2D, respectively. While available in https://github.com/haasn/mpv/commit/7d10c9b76f39bfd2fe606b8702b39888d117c685 for the curious, it won't make it into master as it's excessively slow and offers no visible benefit, while also ringing too strongly at radius 3 or above. (If anything, it would have to be used with some sort of temporal antiringing)