BR112018071430A2 - compensação de varreduras de tomografia de coerência ótica - Google Patents
compensação de varreduras de tomografia de coerência óticaInfo
- Publication number
- BR112018071430A2 BR112018071430A2 BR112018071430A BR112018071430A BR112018071430A2 BR 112018071430 A2 BR112018071430 A2 BR 112018071430A2 BR 112018071430 A BR112018071430 A BR 112018071430A BR 112018071430 A BR112018071430 A BR 112018071430A BR 112018071430 A2 BR112018071430 A2 BR 112018071430A2
- Authority
- BR
- Brazil
- Prior art keywords
- oct
- scan
- depth
- oct signal
- term
- Prior art date
Links
- 238000012014 optical coherence tomography Methods 0.000 title abstract 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 238000003672 processing method Methods 0.000 abstract 1
Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/50—Depth or shape recovery
- G06T7/521—Depth or shape recovery from laser ranging, e.g. using interferometry; from the projection of structured 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
- A61B5/0062—Arrangements for scanning
- A61B5/0066—Optical coherence imaging
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/70—Denoising; Smoothing
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T7/00—Image analysis
- G06T7/0002—Inspection of images, e.g. flaw detection
- G06T7/0012—Biomedical image inspection
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B2576/00—Medical imaging apparatus involving image processing or analysis
- A61B2576/02—Medical imaging apparatus involving image processing or analysis specially adapted for a particular organ or body part
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
- A61B6/52—Devices using data or image processing specially adapted for radiation diagnosis
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10101—Optical tomography; Optical coherence tomography [OCT]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/20—Special algorithmic details
- G06T2207/20024—Filtering details
- G06T2207/20028—Bilateral filtering
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30041—Eye; Retina; Ophthalmic
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
- G06T2207/30088—Skin; Dermal
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2210/00—Indexing scheme for image generation or computer graphics
- G06T2210/41—Medical
Landscapes
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Theoretical Computer Science (AREA)
- General Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Molecular Biology (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Quality & Reliability (AREA)
- Optics & Photonics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Eye Examination Apparatus (AREA)
Abstract
um método de processamento de varredura de tomografia de coerência ótica (oct), compreendendo: receber dados de oct compreendendo um sinal de oct indicativo do nível de dispersão em uma amostra, os dados de oct incluindo o sinal de oct para pelo menos uma varredura através da amostra, com o sinal de oct tendo sido medido em profundidade e posição variáveis através da amostra em cada varredura; processar os dados de oct para cada varredura com profundidade para produzir uma varredura de profundidade indicativa representativa do sinal de oct em cada profundidade em todas as varreduras; ajustar uma curva à varredura de profundidade indicativa, a curva compreendendo um primeiro termo que decai exponencialmente em relação à profundidade e um segundo termo que depende do ruído no sinal de oct; e calcular uma intensidade compensada para o sinal de oct em cada ponto através de cada varredura, a intensidade compensada compreendendo uma proporção de um termo compreendendo um logaritmo do sinal de oct para um termo compreendendo o logaritmo da curva ajustada.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1606897.5A GB2549515A (en) | 2016-04-20 | 2016-04-20 | Processing optical coherence tomography scans |
| PCT/GB2017/051108 WO2017182816A1 (en) | 2016-04-20 | 2017-04-20 | Compensating optical coherence tomography scans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BR112018071430A2 true BR112018071430A2 (pt) | 2019-02-05 |
Family
ID=58772925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BR112018071430A BR112018071430A2 (pt) | 2016-04-20 | 2017-04-20 | compensação de varreduras de tomografia de coerência ótica |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10885646B2 (pt) |
| EP (1) | EP3446285B1 (pt) |
| JP (1) | JP2019518493A (pt) |
| CN (1) | CN109155058B (pt) |
| AU (1) | AU2017252593A1 (pt) |
| BR (1) | BR112018071430A2 (pt) |
| GB (1) | GB2549515A (pt) |
| WO (1) | WO2017182816A1 (pt) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11257190B2 (en) * | 2019-03-01 | 2022-02-22 | Topcon Corporation | Image quality improvement methods for optical coherence tomography |
| GB201908766D0 (en) | 2019-06-19 | 2019-07-31 | Michelson Diagnostics Ltd | Processing optical coherence tomography scans |
| CN110367931A (zh) * | 2019-07-09 | 2019-10-25 | 中国人民解放军军事科学院军事医学研究院 | 一种基于飞秒激光的光断层透射成像系统 |
| CN111915564B (zh) * | 2020-07-02 | 2022-04-22 | 西安交通大学 | 联合机器视觉与oct技术的冷冻肉制品光学特性检测方法 |
| CN112816510B (zh) * | 2021-03-03 | 2022-06-21 | 明峰医疗系统股份有限公司 | Ct扫描设备的探测信号处理方法、系统及计算机可读存储介质 |
| CN113040763B (zh) * | 2021-04-28 | 2022-05-17 | 浙江大学 | 一种基于octa的血糖测试方法与装置 |
| CN113469875B (zh) * | 2021-07-13 | 2023-07-14 | 中国人民解放军总医院 | 光衰图像合成方法、装置、终端设备及存储介质 |
| CN114724299B (zh) * | 2022-04-01 | 2023-09-12 | 公安部物证鉴定中心 | 一种基于断层图像特征的纸币真伪鉴别方法及系统 |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2309916C (en) * | 1997-11-14 | 2007-10-09 | Colorado Seminary | Ultrasonic system for grading meat |
| US7768652B2 (en) * | 2006-03-16 | 2010-08-03 | Carl Zeiss Meditec, Inc. | Methods for mapping tissue with optical coherence tomography data |
| JP4389032B2 (ja) * | 2007-01-18 | 2009-12-24 | 国立大学法人 筑波大学 | 光コヒーレンストモグラフィーの画像処理装置 |
| CN101949689B (zh) * | 2010-06-22 | 2012-05-30 | 深圳市斯尔顿科技有限公司 | 一种oct系统校正方法 |
| US20140221827A1 (en) * | 2011-06-07 | 2014-08-07 | California Institute Of Technology | Enhanced optical angiography using intensity contrast and phase contrast imaging methods |
| US9678007B2 (en) * | 2011-10-14 | 2017-06-13 | Northwestern University | Biological tissue analysis by inverse spectroscopic optical coherence tomography |
| US9324141B2 (en) * | 2012-10-05 | 2016-04-26 | Volcano Corporation | Removal of A-scan streaking artifact |
| US9462086B2 (en) | 2013-03-28 | 2016-10-04 | Telecommunication Systems, Inc. | Short message service (SMS) over SGs |
| US9600911B2 (en) * | 2013-05-31 | 2017-03-21 | General Photonics Corporation | Reconstruction of optical coherent tomography (OCT) images of morphological features |
| GB2515761A (en) * | 2013-07-02 | 2015-01-07 | Michelson Diagnostics Ltd | Processing optical coherence tomography scans of a subject's skin |
| JP6507615B2 (ja) * | 2013-12-13 | 2019-05-08 | 株式会社ニデック | 光コヒーレンストモグラフィ装置、及びプログラム |
| CN104729419B (zh) * | 2014-11-04 | 2019-09-13 | 广东工业大学 | 透视测量高聚物材料内部热变形场分布的装置及方法 |
| CN104318541B (zh) * | 2014-11-19 | 2017-07-28 | 深圳市斯尔顿科技有限公司 | 一种眼科oct图像的处理方法 |
| US20160317020A1 (en) * | 2015-05-01 | 2016-11-03 | Oregon Health & Science University | Phase gradient optical coherence tomography angiography |
| CN105030201B (zh) * | 2015-07-27 | 2017-10-13 | 浙江大学 | 基于静态区域信息的扫频oct数字相位矫正方法与系统 |
-
2016
- 2016-04-20 GB GB1606897.5A patent/GB2549515A/en not_active Withdrawn
-
2017
- 2017-04-20 WO PCT/GB2017/051108 patent/WO2017182816A1/en active Application Filing
- 2017-04-20 AU AU2017252593A patent/AU2017252593A1/en not_active Abandoned
- 2017-04-20 EP EP17726014.8A patent/EP3446285B1/en active Active
- 2017-04-20 BR BR112018071430A patent/BR112018071430A2/pt not_active Application Discontinuation
- 2017-04-20 JP JP2018554706A patent/JP2019518493A/ja active Pending
- 2017-04-20 CN CN201780024492.XA patent/CN109155058B/zh active Active
- 2017-04-20 US US16/093,307 patent/US10885646B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2019518493A (ja) | 2019-07-04 |
| AU2017252593A1 (en) | 2018-12-06 |
| GB2549515A (en) | 2017-10-25 |
| WO2017182816A1 (en) | 2017-10-26 |
| CN109155058B (zh) | 2023-06-20 |
| US20200027227A1 (en) | 2020-01-23 |
| US10885646B2 (en) | 2021-01-05 |
| EP3446285B1 (en) | 2021-06-23 |
| CN109155058A (zh) | 2019-01-04 |
| EP3446285A1 (en) | 2019-02-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| B11A | Dismissal acc. art.33 of ipl - examination not requested within 36 months of filing | ||
| B11Y | Definitive dismissal - extension of time limit for request of examination expired [chapter 11.1.1 patent gazette] | ||
| B350 | Update of information on the portal [chapter 15.35 patent gazette] |