Fig. 3: Illustration of the CCI algorithm.
From: Coherent correlation imaging for resolving fluctuating states of matter
a, Pair correlation map of an exemplary set of 250 camera snapshots. The inset shows the magnetic image reconstructed from the sequential average of all 250 snapshots. b, Similarity distance derived from the normalized pair correlation of the pattern in a. c, Dendrogram calculated from b by an agglomerative, hierarchical clustering algorithm. Natural divisions are identified by exceptionally large inconsistencies between the vertical step size and the standard deviation of lower-level links, as indicated by the colour. The complete separation into the clusters in d is performed iteratively as indicated. See Methods for details. d, Spatially resolved set of domain configurations reconstructed from an informed average of all snapshots of each cluster. e, Reconstructed temporal evolution of states, as obtained by grouping domain configurations from d, that is, by grouping the internal modes A1 and A2. Dashed lines indicate times without data points. Scale bars, 500 nm.
