Nonextensive Statistical Mechanics

282 7 Thermodynamical and Nonthermodynamical ApplicationsFig. 7.83 Image fusion metric based on q-generalized mutual information. The best correlationwith the subjective quality of fused images is obtained for q ≃ 1.85. Top panel: The goal is tobetter distinguish the human profile. Bottom panel: The goal is to better distinguish the background.Further details in [765].iii. Medical applicationsSignal processing of the EEG for direct medical use has been proposed forbrain injury following severe situations such as cardiac arrest or asphyxia[776]. Typical results are indicated in Figs. 7.90 and 7.91. Further biomedicalapplications can be seen in [777–788].7.6 Cellular AutomataA first connection between cellular automata (CA) and q-concepts has been attemptedin [846], by introducing a long-memory in some typical Wolfram Class IICA. We have focused on Rules 61, 99, and 111. The weight of the memory decaystowards the past as 1/τ α (τ = 1, 2, 3,...; α ≥ 0), so that α →∞has no other