Table 5 Extracted feature set of shoaling behavior.

From: Synergistic enhancement of detection-tracking framework for zebrafish shoaling behavior analysis

Categories

Metrics

Definitions

Biological significance

Migratory movement

SMR

Displacement of shoal centroid per unit time

Reflect overall movement activity

SRR

Rotational speed of shoal centroid around the scene center

Characterize the disorder degree of movement patterns

Spatial distribution

SD

Ratio of shoal area to scene area

Quantify the loosening trend of shoals

NND

Minimum inter-individual distance

Measure local compactness between individuals

IID

Mean distance of all individuals to the shoal centroid

Reflect global spatial distribution uniformity