step size |
d |
motility |
centroid-to-centroid distance in subsequent time step |
mean velocity autocorrelation function across N time step |
μVACFN
|
motility |
sample mean of dot products of N adjacent unit velocity vectors |
variance velocity autocorrelation function across N time steps |
σ2VACFN
|
motility |
sample variance of dot products of N adjacent unit velocity vectors |
cell size |
A |
morphological |
area enclosed by cell contour |
cell elongation |
ℓ |
morphological |
ratio between cell major and minor axes |
cell orientation |
θ |
morphological |
dot product of unit instantaneous velocity vector and unit major axis |