IN2014DN03014A - - Google Patents
Info
- Publication number
- IN2014DN03014A IN2014DN03014A IN3014DEN2014A IN2014DN03014A IN 2014DN03014 A IN2014DN03014 A IN 2014DN03014A IN 3014DEN2014 A IN3014DEN2014 A IN 3014DEN2014A IN 2014DN03014 A IN2014DN03014 A IN 2014DN03014A
- Authority
- IN
- India
- Prior art keywords
- laser speckle
- anisotropic
- blood flow
- pixel
- primary pixel
- Prior art date
Links
- 230000017531 blood circulation Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 2
- 238000000605 extraction Methods 0.000 abstract 1
- 238000003384 imaging method Methods 0.000 abstract 1
- 238000013507 mapping Methods 0.000 abstract 1
- 230000002123 temporal effect Effects 0.000 abstract 1
Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0261—Measuring blood flow using optical means, e.g. infrared light
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/004—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part
- A61B5/0042—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room adapted for image acquisition of a particular organ or body part for the brain
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4887—Locating particular structures in or on the body
- A61B5/489—Blood vessels
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Surgery (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Physics & Mathematics (AREA)
- Medical Informatics (AREA)
- Radiology & Medical Imaging (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Hematology (AREA)
- Cardiology (AREA)
- Physiology (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Eye Examination Apparatus (AREA)
- Image Processing (AREA)
Abstract
An embodiment in accordance with the present invention provides a system and method for imaging living tissue and processing laser speckle data anisotropically to calculate laser speckle contrast preferentially along the direction of blood flow. In the present invention raw laser speckle images are obtained and processed resulting in the anisotropic laser speckle images The system and method involve the determination of the direction of blood flow for every pixel within the region of interest (primary pixel) and subsequent extraction of a set of secondary pixels in the spatio temporal neighborhood of the primary pixel that is anisotropic in the direction of blood flow. Speckle contrast is then calculated for every primary pixel as the ratio of standard deviation and mean of all secondary pixels in this anisotropic neighborhood and collectively plotted using a suitable color mapping scheme to obtain an anisotropic laser speckle contrast image of the region of interest.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201161539042P | 2011-09-26 | 2011-09-26 | |
PCT/US2012/057221 WO2013049123A1 (en) | 2011-09-26 | 2012-09-26 | Anisotropic processing of laser speckle images |
Publications (1)
Publication Number | Publication Date |
---|---|
IN2014DN03014A true IN2014DN03014A (en) | 2015-05-08 |
Family
ID=47996353
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN3014DEN2014 IN2014DN03014A (en) | 2011-09-26 | 2012-09-26 |
Country Status (5)
Country | Link |
---|---|
US (1) | US10045703B2 (en) |
EP (1) | EP2760338B1 (en) |
CN (1) | CN103857335B (en) |
IN (1) | IN2014DN03014A (en) |
WO (1) | WO2013049123A1 (en) |
Families Citing this family (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2014151114A1 (en) | 2013-03-15 | 2014-09-25 | Vasoptic Medical Inc. | Ophthalmic examination and disease management with multiple illumination modalities |
JP6394367B2 (en) * | 2014-05-30 | 2018-09-26 | ソニー株式会社 | Fluid analysis apparatus, fluid analysis method, program, and fluid analysis system |
CN104173038B (en) * | 2014-08-29 | 2016-04-20 | 上海交通大学 | Based on the blood flow velocity measurement method of frequency domain laser speckle imaging |
US9996921B2 (en) | 2015-05-17 | 2018-06-12 | LIGHTLAB IMAGING, lNC. | Detection of metal stent struts |
US10109058B2 (en) | 2015-05-17 | 2018-10-23 | Lightlab Imaging, Inc. | Intravascular imaging system interfaces and stent detection methods |
IL239113A (en) | 2015-06-01 | 2016-12-29 | Elbit Systems Land & C4I Ltd | System and method for determining audio characteristics from within a body |
WO2017019634A1 (en) | 2015-07-25 | 2017-02-02 | Lightlab Imaging, Inc. | Intravascular data visualization method |
AU2016297923B2 (en) * | 2015-07-25 | 2021-02-18 | Lightlab Imaging, Inc. | Guidewire detection systems, methods, and apparatuses |
DE102015114376B4 (en) * | 2015-08-28 | 2017-10-12 | Visteon Global Technologies, Inc. | Apparatus and method for characterizing subjective speckle formation |
JP2019502423A (en) * | 2015-11-13 | 2019-01-31 | ラトガース, ザ ステイト ユニバーシティー オブ ニュージャージー | Differential diagnosis of periapical diseases based on image analysis results |
EP3385723B1 (en) * | 2015-12-04 | 2020-12-02 | Sony Corporation | Information processing device, speckle imaging system, and information processing method |
JP6852730B2 (en) | 2016-04-05 | 2021-03-31 | ソニー株式会社 | Speckle measuring device and speckle measuring method |
KR102527671B1 (en) * | 2016-06-27 | 2023-05-02 | 옴리 워샤브스키 | Color imaging by synchronized illumination in discrete narrow bands |
CN106419890B (en) * | 2016-11-14 | 2024-04-30 | 佛山科学技术学院 | Blood flow velocity measuring device and method based on space-time modulation |
FR3062542B1 (en) * | 2017-02-01 | 2020-12-25 | Office National Detudes Rech Aerospatiales | APPARATUS AND PROCESS FOR SCAR CONTRAST IMAGING |
CN110507305B (en) * | 2019-08-27 | 2024-04-16 | 北京大学 | Blood flow velocity measurement method based on laser speckle contrast waveform conduction time difference |
JP2021058478A (en) * | 2019-10-08 | 2021-04-15 | ソニー株式会社 | Image processing apparatus, image processing system, and image processing method |
CN111369627B (en) * | 2020-03-05 | 2023-04-07 | 电子科技大学 | Non-invasive speckle directional imaging method |
WO2021183637A1 (en) | 2020-03-13 | 2021-09-16 | Vasoptic Medical Inc. | Illumination of an eye fundus using non-scanning coherent light |
CN111436905B (en) * | 2020-04-03 | 2024-03-19 | 图湃(北京)医疗科技有限公司 | Optical coherence tomography angiography method and device |
CN112611701B (en) * | 2020-12-10 | 2023-02-28 | 天津大学 | Circulating tumor cell detection device based on dynamic coherent optical imaging technology |
CN118234425A (en) * | 2021-07-09 | 2024-06-21 | 范德堡大学 | Laser speckle contrast imaging system and application thereof |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101406392B (en) * | 1999-09-24 | 2011-05-18 | 加拿大国家研究委员会 | Apparatus for performing intra-operative angiography |
US7113817B1 (en) * | 2001-10-04 | 2006-09-26 | Wintec, Llc | Optical imaging of blood circulation velocities |
US7660461B2 (en) * | 2006-04-21 | 2010-02-09 | Sectra Ab | Automated histogram characterization of data sets for image visualization using alpha-histograms |
WO2009008745A2 (en) | 2007-07-06 | 2009-01-15 | Industrial Research Limited | Laser speckle imaging systems and methods |
WO2009039303A1 (en) * | 2007-09-19 | 2009-03-26 | State University Of New York At Stony Brook | Optical coherence tomography systems and methods |
CN101566504B (en) * | 2008-04-25 | 2011-06-29 | 北京中视中科光电技术有限公司 | Method and device for measuring laser speckles |
WO2010096447A2 (en) * | 2009-02-17 | 2010-08-26 | Board Of Regents, The University Of Texas System | Quantitative imaging with multi-exposure speckle imaging (mesi) |
-
2012
- 2012-09-26 WO PCT/US2012/057221 patent/WO2013049123A1/en active Application Filing
- 2012-09-26 EP EP12836355.3A patent/EP2760338B1/en active Active
- 2012-09-26 US US14/346,984 patent/US10045703B2/en active Active
- 2012-09-26 CN CN201280046757.3A patent/CN103857335B/en active Active
- 2012-09-26 IN IN3014DEN2014 patent/IN2014DN03014A/en unknown
Also Published As
Publication number | Publication date |
---|---|
EP2760338A1 (en) | 2014-08-06 |
CN103857335B (en) | 2016-01-27 |
EP2760338B1 (en) | 2018-08-22 |
CN103857335A (en) | 2014-06-11 |
WO2013049123A1 (en) | 2013-04-04 |
US20140316284A1 (en) | 2014-10-23 |
US10045703B2 (en) | 2018-08-14 |
EP2760338A4 (en) | 2015-06-24 |
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