WO2003009579A3 - Computational methods for the segmentation of images of objects from background in a flow imaging instrument - Google Patents

Computational methods for the segmentation of images of objects from background in a flow imaging instrument Download PDF

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Publication number
WO2003009579A3
WO2003009579A3 PCT/US2002/023203 US0223203W WO03009579A3 WO 2003009579 A3 WO2003009579 A3 WO 2003009579A3 US 0223203 W US0223203 W US 0223203W WO 03009579 A3 WO03009579 A3 WO 03009579A3
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WO
WIPO (PCT)
Prior art keywords
objects
roi
images
segmentation
background
Prior art date
Application number
PCT/US2002/023203
Other languages
French (fr)
Other versions
WO2003009579A2 (en
Inventor
Keith Frost
James Riley
Original Assignee
Amnis Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US09/939,292 external-priority patent/US6532061B2/en
Priority claimed from US10/132,059 external-priority patent/US6763149B2/en
Application filed by Amnis Corp filed Critical Amnis Corp
Priority to AU2002319621A priority Critical patent/AU2002319621A1/en
Publication of WO2003009579A2 publication Critical patent/WO2003009579A2/en
Publication of WO2003009579A3 publication Critical patent/WO2003009579A3/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/0012—Optical design, e.g. procedures, algorithms, optimisation routines
    • G01N15/1433—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N15/1468—Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle
    • G01N15/147—Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle the analysis being performed on a sample stream
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • G01N21/6456—Spatial resolved fluorescence measurements; Imaging
    • G01N2015/1014—
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N15/1468—Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle
    • G01N2015/1472—Electro-optical investigation, e.g. flow cytometers with spatial resolution of the texture or inner structure of the particle with colour
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N2015/1486—Counting the particles
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume, or surface-area of porous materials
    • G01N15/10—Investigating individual particles
    • G01N15/14—Electro-optical investigation, e.g. flow cytometers
    • G01N2015/1497—Particle shape
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
    • G01N21/64—Fluorescence; Phosphorescence
    • G01N21/645—Specially adapted constructive features of fluorimeters
    • G01N21/6456—Spatial resolved fluorescence measurements; Imaging
    • G01N21/6458—Fluorescence microscopy

Abstract

In automated computation-based interpretation of images, the accuracy and reliability of the detection of objects, known as 'object segmentation,' is implemented so as to provide efficient performance. In a multi-step process, objects are first detected (74) and captured into regions of interest (ROIs) (76). Sets of pixels belonging to respective objects are then identified. Preferably object detection is achieved using both a two-dimensional (2D) low pass filter and a 2D edge enhancement filter. Two different gradient based edge enhancement filters are disclosed. One embodiment of the invention defines a (ROI) by first determining the center of objects by executing a plurality of decimations on the filtered image data, and then establishing object boundaries. In a second embodiment the ROI is defined by generating an amplitude histogram of the filtered image data, and for histograms exceeding a threshold determining by pixel which rows are to be included in the ROI.
PCT/US2002/023203 2001-07-17 2002-07-17 Computational methods for the segmentation of images of objects from background in a flow imaging instrument WO2003009579A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002319621A AU2002319621A1 (en) 2001-07-17 2002-07-17 Computational methods for the segmentation of images of objects from background in a flow imaging instrument

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
US30612601P 2001-07-17 2001-07-17
US60/306,126 2001-07-17
US09/939,292 US6532061B2 (en) 2000-08-25 2001-08-24 Measuring the velocity of small moving objects such as cells
US09/939,049 US6507391B2 (en) 2000-08-25 2001-08-24 Measuring the velocity of small moving objects such as cells
US09/939,049 2001-08-24
US09/939,292 2001-08-24
US10/132,059 US6763149B2 (en) 2001-04-25 2002-04-24 Method and apparatus for correcting crosstalk and spatial resolution for multichannel imaging
US10/132,059 2002-04-24

Publications (2)

Publication Number Publication Date
WO2003009579A2 WO2003009579A2 (en) 2003-01-30
WO2003009579A3 true WO2003009579A3 (en) 2003-09-12

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PCT/US2002/023203 WO2003009579A2 (en) 2001-07-17 2002-07-17 Computational methods for the segmentation of images of objects from background in a flow imaging instrument

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US (1) US7190832B2 (en)
AU (1) AU2002319621A1 (en)
WO (1) WO2003009579A2 (en)

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