FAST FEATURE IDENTIFICATION FOR HOLOGRAPHIC TRACKING AND CHARACTERIZATION OF COLLOIDAL PARTICLES

摘要

A method and system for identification of holographic tracking and identification of features of an object. A holograph is created from scattering off the object, intensity gradients are established for a plurality of pixels in the holograms, the direction of the intensity gradient is determined and those directions analyzed to identify features of the object and enables tracking of the object. Machine learning devices can be trained to estimate particle properties from holographic information.

主权项

1. A method of feature identification in holographic tracking and identification for features of an object, comprising the steps of,
inputting a collimated laser beam; scattering the collimated laser beam from the object to generate a scattered beam; recording a hologram characteristic of the interference between the scattering beam and the input beam; determining, using an orientational alignment transform, from the recorded hologram an estimate of a two-dimensional position of the object; and determining, using the two-dimensional position of the object and a machine learning algorithm an estimate of an axial position of the object and a size of the object and a refractive index of the object.