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1. WO2022007353 - METHOD AND APPARATUS FOR ENHANCING CHOROID OCT IMAGE ON BASIS OF SIGNAL REVERSE COMPENSATION

Publication Number WO/2022/007353
Publication Date 13.01.2022
International Application No. PCT/CN2020/139964
International Filing Date 28.12.2020
IPC
G06T 5/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
G06T 7/12 2017.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
10Segmentation; Edge detection
12Edge-based segmentation
G06T 7/136 2017.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
10Segmentation; Edge detection
136involving thresholding
G06T 11/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
112D image generation
G06N 3/04 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
NCOMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS
3Computer systems based on biological models
02using neural network models
04Architecture, e.g. interconnection topology
A61B 3/12 2006.1
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
3Apparatus for testing the eyes; Instruments for examining the eyes
10Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
12for looking at the eye fundus, e.g. ophthalmoscopes
Applicants
  • 温州医科大学 WENZHOU MEDICAL UNIVERSITY [CN]/[CN]
Inventors
  • 周翔天 ZHOU, Xiangtian
  • 沈梅晓 SHEN, Meixiao
  • 吴昊 WU, Hao
  • 陈思思 CHEN, Sisi
  • 金梓 JIN, Zi
Agents
  • 温州金瓯专利事务所(普通合伙) WENZHOU JINOU PATENT LAW OFFICE (GENERAL PARTNERSHIP)
Priority Data
202010660531.910.07.2020CN
Publication Language Chinese (zh)
Filing Language Chinese (ZH)
Designated States
Title
(EN) METHOD AND APPARATUS FOR ENHANCING CHOROID OCT IMAGE ON BASIS OF SIGNAL REVERSE COMPENSATION
(FR) PROCÉDÉ ET APPAREIL POUR AMÉLIORER UNE IMAGE OCT DE CHOROÏDE SUR LA BASE D'UNE COMPENSATION INVERSE DE SIGNAL
(ZH) 一种基于信号逆向补偿的脉络膜OCT图像增强方法及装置
Abstract
(EN) A method and apparatus for enhancing a choroid OCT image on the basis of signal reverse compensation. After preprocessing a choroid image signal obtained by a system, establish, on the basis of the idea of the reverse compensation of an OCT backscattered signal, a reverse signal attenuation compensation model, reversely compensate the choroid signal, and enhance the signal-to-noise ratio between blood vessels and non-vascular tissue, thus solving the defect in which the boundary of a choroid vessel OCT image is difficult to segment.
(FR) Procédé et appareil pour améliorer une image OCT de choroïde sur la base d'une compensation inverse de signal. Après le prétraitement d'un signal d'image de choroïde obtenu par un système, le procédé consiste à établir, sur la base de l'idée de la compensation inverse d'un signal rétrodiffusé OCT, un modèle de compensation d'atténuation de signal inverse, à compenser de manière inverse le signal de choroïde et à améliorer le rapport signal sur bruit entre les vaisseaux sanguins et le tissu non vasculaire, ce qui permet de résoudre le défaut dans lequel la limite d'une image OCT de vaisseau choroïde est difficile à segmenter.
(ZH) 一种基于信号逆向补偿的脉络膜OCT图像增强方法及装置,对系统获取的脉络膜图像信号进行预处理后,基于OCT后向散射信号逆向补偿的思想,建立逆向信号衰减补偿模型,逆向补偿脉络膜信号,增强血管与非血管组织之间的信噪比,从而解决脉络膜血管OCT图像边界难以分割的缺陷。
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