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1. (WO2017134324) METHOD AND COMPUTER PROGRAM FOR ANALYSING OCULAR DIFFUSION
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/2017/134324 International Application No.: PCT/ES2017/070058
Publication Date: 10.08.2017 International Filing Date: 03.02.2017
IPC:
A61B 3/14 (2006.01) ,A61B 3/10 (2006.01) ,A61B 3/12 (2006.01) ,G01N 21/49 (2006.01) ,G01N 21/47 (2006.01)
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
14
Arrangements specially adapted for eye photography
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
A HUMAN NECESSITIES
61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
B
DIAGNOSIS; SURGERY; IDENTIFICATION
3
Apparatus for testing the eyes; Instruments for examining the eyes
10
Objective types, i.e. instruments for examining the eyes independent of the patients perceptions or reactions
12
for looking at the eye fundus, e.g. ophthalmoscopes
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
47
Scattering, i.e. diffuse reflection
49
within a body or fluid
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
47
Scattering, i.e. diffuse reflection
Applicants:
UNIVERSITAT POLITÈCNICA DE CATALUNYA [ES/ES]; Til·lers 1a planta Jordi Girona, 31, Catalunya 08034 Barcelona, ES
Inventors:
PUJOL RAMO, Jaume; ES
VILASECA RICARD, Meritxell; ES
MARTINEZ RODA, Juan Antonio; ES
GARCIA GERRERO, Carlos Enrique; ES
Priority Data:
P20163013505.02.2016ES
Title (EN) METHOD AND COMPUTER PROGRAM FOR ANALYSING OCULAR DIFFUSION
(ES) MÉTODO Y PROGRAMA DE ORDENADOR PARA ANALIZAR LA DIFUSIÓN OCULAR
(FR) PROCÉDÉ ET PROGRAMME INFORMATIQUE POUR ANALYSER LA DIFFUSION OCULAIRE
Abstract:
(EN) The invention relates to a method and computer program for analysing ocular diffusion. Using one or more images captured by a double-pass ophthalmoscopic system by projecting a punctual beam of light onto the retina and subsequently capturing the light reflected on the retina, the method analyses said one or more captured images by means of a computation device, analysing the content relating to the ocular diffusion of same. The relative extent of ocular diffusion is determined by implementing a computational algorithm that executes a function in the frequency domain, which function is used to calculate parameters for quantifying ocular diffusion from one or more frequency values corresponding to spatial frequencies less than or equal to approximately 12 cycles/degree.
(ES) Método y programa de ordenador para analizar la difusión ocular El método, a partir de una o más imágenes capturadas por un sistema oftalmoscópico de doble-paso mediante la proyección de un haz de luz puntual en la retina y la posterior captura de la luz reflejada en la retina, realiza un análisis, por un dispositivo de computación, de dicha una o más imágenes capturadas analizando el contenido relativo a la difusión ocular de la misma/s. El contenido relativo de la difusión ocular se determina mediante la implementación de un algoritmo de computación que ejecuta una función en el dominio frecuencial con la que se calculan unos parámetros de cuantificación de la difusión ocular a partir de uno o más valores frecuenciales correspondientes a unas frecuencias espaciales comprendidas en un rango igual o por debajo de aproximadamente 12 ciclos/grado.
(FR) L’invention concerne un procédé et un programme informatique pour analyser la diffusion oculaire. À partir d’une ou plusieurs images capturées par un système ophtalmoscopique à double passage par projection d’un faisceau de lumière ponctuelle dans la rétine et par capture ultérieure de la lumière réfléchie dans la rétine, le procédé consiste à effectuer une analyse, au moyen d’un dispositif informatique, de la ou desdites images capturées par analyse du contenu relatif à la diffusion oculaire de celles-ci. Le contenu relatif à la diffusion oculaire est déterminé par la mise en œuvre d’un algorithme de calcul qui exécute une fonction dans le domaine fréquentiel au moyen de laquelle sont calculés les paramètres de quantification de la diffusion oculaire à partir d’une ou plusieurs valeurs fréquentielles correspondant à des fréquences spatiales comprises dans une plage inférieure ou égale à environ 12 cycles/degré.
front page image
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JP, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Spanish (ES)
Filing Language: Spanish (ES)