Figure 5.
Schematic overview of ex-zd lossless compression strategy. Schematic illustrates the structure of the raw signal values for a single nanopore sequencing read encoded with ex-zd. Orange blocks represent the ex-zd metadata; blue block represents one-byte data; purple blocks represent two-byte exception data. Assuming exceptions exist, the exception data structure can take two forms (shown below), depending on whether the number of exceptions is nx > 1 or nx = 1. If there are no exceptions, X = 0 (i.e., purple block is absent).
