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1. (WO2019005377) NOISE ESTIMATION USING BRACKETED IMAGE CAPTURE
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Pub. No.: WO/2019/005377 International Application No.: PCT/US2018/034519
Publication Date: 03.01.2019 International Filing Date: 25.05.2018
IPC:
H04N 5/217 (2011.01) ,G06T 5/00 (2006.01) ,H04N 5/235 (2006.01) ,H04N 5/243 (2006.01)
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
14
Picture signal circuitry for video frequency region
21
Circuitry for suppressing or minimising disturbance, e.g. moire, halo
217
in picture signal generation
G PHYSICS
06
COMPUTING; CALCULATING; COUNTING
T
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5
Image enhancement or restoration, e.g. from bit-mapped to bit-mapped creating a similar image
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
222
Studio circuitry; Studio devices; Studio equipment
225
Television cameras
235
Circuitry for compensating for variation in the brightness of the object
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
5
Details of television systems
222
Studio circuitry; Studio devices; Studio equipment
225
Television cameras
235
Circuitry for compensating for variation in the brightness of the object
243
by influencing the picture signal
Applicants:
MICROSOFT TECHNOLOGY LICENSING, LLC [US/US]; One Microsoft Way Redmond, Washington 98052-6399, US
Inventors:
SOHONI, Sudhanshu; US
Agent:
MINHAS, Sandip S.; US
CHEN, Wei-Chen Nicholas; US
DRAKOS, Katherine J.; US
HINOJOSA, Brianna L.; US
HOLMES, Danielle J.; US
SWAIN, Cassandra T.; US
WONG, Thomas S.; US
CHOI, Daniel; US
HWANG, William C.; US
WIGHT, Stephen A.; US
CHATTERJEE, Aaron C.; US
Priority Data:
15/639,53130.06.2017US
Title (EN) NOISE ESTIMATION USING BRACKETED IMAGE CAPTURE
(FR) ESTIMATION DE BRUIT À L'AIDE D'UNE CAPTURE D'IMAGE À SUPPORT
Abstract:
(EN) Methods and devices for reducing noise in an image may include receiving an in focus image and at least one out of focus image of a scene, wherein the out of focus image has a second value of at least one focus-related parameter offset from a first value of the at least one focus-related parameter used for the in focus image. The methods and devices may include estimating a noise model of noise in at least a section of the out of focus image, and determining at least one parameter value for a filter based on the noise model. The methods and devices may include generating a noise-reduced image by applying the filter with the at least one parameter value to the in focus image to reduce at least part of the noise from at least a corresponding section of the in focus image.
(FR) L'invention concerne des procédés et des dispositifs de réduction du bruit dans une image qui peuvent comprendre la réception d'une image focalisée et d'au moins une image défocalisée d'une scène, l'image défocalisée ayant une seconde valeur d'au moins un paramètre lié au foyer décalée par rapport à une première valeur du ou des paramètres liés au foyer utilisés pour l'image focalisée. Les procédés et les dispositifs peuvent comprendre l'estimation d'un modèle de bruit du bruit dans au moins une section de l'image défocalisée, et la détermination d'au moins une valeur de paramètre pour un filtre sur la base du modèle de bruit. Les procédés et les dispositifs peuvent comprendre la génération d'une image à bruit réduit par l'application du filtre ayant la ou les valeurs de paramètre à l'image focalisée pour réduire au moins une partie du bruit dans au moins une section correspondante de l'image focalisée.
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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, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, 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 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)