Animation Compression: Sub-sampling
17 Nov 2016 · Animation CompressionOnce upon a time, sub-sampling was a very common compression technique but it is now mostly relegated to history books (and my boring blog!).
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Once upon a time, sub-sampling was a very common compression technique but it is now mostly relegated to history books (and my boring blog!).
Simple quantization is perhaps the simplest compression technique out there. It is used for pretty much everything, not just for character animation compression.
Over the years, a number of techniques have emerged to address the problem of character animation compression. These can be roughly broken down into a handful of general families:
Uniform segmenting is performed by splitting a clip into a number of blocks of equal or approximately equal size. This is done for a number of reasons.
Range reduction is all about exploiting the fact that the values we compress typically have a much smaller range in practice than in theory.