Systems and methods for counting particles

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United States of America Patent

PATENT NO 11846577
APP PUB NO 20220299419A1
SERIAL NO

17835814

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Abstract

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Systems and methods are provided for counting particles in a fluid flow. In an aspect, coordinates of particles are obtained from video data of particles in a fluid, the video data made up of a sequence of image frames. The particle positions are linked in each pair of consecutive image frames of the video data. The linked particle positions are used to calculate particle trajectories through sequential image frames of the video data, and the particles are counted based on the particle trajectory. In another aspect, the particle positons within each image frame are transformed to estimated positions within a common coordinate frame. The estimated particle positions of a particle are grouped into a cluster center, and the particle count is calculated based on the cluster centers.

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Patent Owner(s)

Patent OwnerAddress
JOHNS HOPKINS UNIVERSITY34TH AND CHARLES STREET BALTIMORE MD 21218

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haeffele, Benjamin D Oakland, US 6 2
Vidal, Rene Baltimore, US 7 8
Yellin, Florence Baltimore, US 5 4

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