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1. (WO2017034861) EYELID SHAPE ESTIMATION
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Pub. No.: WO/2017/034861 International Application No.: PCT/US2016/047183
Publication Date: 02.03.2017 International Filing Date: 16.08.2016
IPC:
A61B 3/10 (2006.01) ,A61B 3/11 (2006.01) ,A61B 3/14 (2006.01) ,G06K 9/00 (2006.01) ,G06T 11/20 (2006.01) ,G06K 9/46 (2006.01) ,G06T 1/00 (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
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
11
for measuring interpupillary distance or diameter of pupils
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
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
11
2D [Two Dimensional] image generation
20
Drawing from basic elements, e.g. lines or circles
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
K
RECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9
Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36
Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46
Extraction of features or characteristics of the image
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
1
General purpose image data processing
Applicants:
MAGIC LEAP, INC. [US/US]; 7500 W. Sunrise Blvd. Plantation, FL 33322, US
Inventors:
AMAYEH, Gholamreza; US
KAEHLER, Adrian; US
Agent:
ALTMAN, Daniel, E.; US
Priority Data:
62/208,14221.08.2015US
Title (EN) EYELID SHAPE ESTIMATION
(FR) ESTIMATION DE FORME DE PAUPIÈRE
Abstract:
(EN) Systems and methods for eyelid shape estimation are disclosed. In one aspect, after receiving an eye image of an eye (e.g., from an image capture device), an eye-box is generated over an iris of the eye in the eye image. A plurality of radial lines can be generated from approximately the center of the eye-box to an upper edge or a lower edge of the eye box. Candidate points can be determined to have local maximum derivatives along the plurality of radial lines. From the candidate points, an eyelid shape curve (e.g., for an upper eyelid or a lower eyelid) can be determined by fitting a curve (e.g., a parabola or a polynomial) to the candidate points or a subset of the candidate points.
(FR) La présente invention concerne des systèmes et des procédés d'estimation de forme de paupière. Selon un aspect, après réception d'une image d'œil d'un œil (par exemple, en provenance d'un dispositif de capture d'image), une zone oculaire est générée sur un iris de l'œil dans l'image d'œil. Une pluralité de lignes radiales peuvent être générées à partir d'approximativement le centre de la zone oculaire jusqu'à un bord supérieur ou à un bord inférieur de la zone oculaire. Des points candidats peuvent être déterminés comme présentant des dérivés locales maximales le long de la pluralité de lignes radiales. Parmi les points candidats, une courbe de forme de paupière (par exemple, pour une paupière supérieure ou une paupière inférieure) peut être déterminée en adaptant une courbe (par exemple, une courbe parabolique ou polynomiale) aux points candidats ou à un sous-ensemble des points candidats.
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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, 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, KN, KP, KR, 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 Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (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: English (EN)
Filing Language: English (EN)