Drop swarm analysis in dispersions with incident-light and transmitted-light illumination

► Optical Multimode Online Probe for automatic position independent droplet detection. ► Local resolution reaches 20 μm, circular droplets up to 5 mm and up to 0.2 m/s detectable. ► Online analysis based on Distance Transform approach with watershed segmentation. ► Advanced pre-segmentation of incident-light images with Random Forest Classifier. ► Full distribution and deviations in automatic mode below 2% (DT) and 12.9% (RFC) respectively.