1 Origin story Figure 1 Quantization, in a general sense, is the process of mapping a continuous or large set of values to a smaller, discrete set. This concept has roots in signal processing and information theory —search for Vector Quantization (VQ) emerging in the late 1970s and early 1980s. Think things like the Linde-Buzo-Gray (LBG) algorithm (Linde, Buzo, and Gray 1980). VQ represents vectors from a continuous space using a finite set of prototype vectors from a “codebook,” often...
