High-throughput characterisation of bull semen motility using differential dynamic microscopy
Fig 4
DDM results from a movie (2.5×, 100 fps, 480 p, 40 s) of a diluted sample.
(a) Measured g(q, τ) at 6 values of q, specified in the legend. Black lines are fits to the model given by Eq 2. The arrows indicate three processes associated with head oscillation (1), swimming (2), and diffusion of non-motile sperm cells (3). (b) Reconstructed f(q, τ) plotted against qτ and q2 τ (inset).