Figure 3
From: Towards smart glasses for facial expression recognition using OMG and machine learning
Wilcoxon signed-rank (paired) test with Bonferroni correction for comparing mean cheek and brow movements during high-intensity expressions pairs: eyebrow raise vs. frown, eyebrow raise vs. smile, eyebrow raise vs. squeezed eyes, frown vs. smile, frown vs. squeezed eyes, and smile vs. squeezed eyes. Statistical significance annotations: *if p ∈ [0.05, 10−2); **if p ∈ [10−2, 10−3); ***if p ∈ [10−3, 10−4); and ****if p ≥ 10−4.
