Those encoding tricks go back to research from the 1960 and even earlier. For example, if you expect the statistical distribution of the delta encoding to produ

Those encoding tricks go back to research from the 1960 and even earlier. For example, if you expect the statistical distribution of the delta encoding to produce small values, it can be followed by Rice-Golomb coding [1], which further reduces the number of bits needed for each value. [1] https://en.wikipedia.org/wiki/Golomb_coding https://en.wikipedia.org/wiki/Golomb_coding