Some content of this application is unavailable at the moment.
If this situation persist, please contact us atFeedback&Contact
1. (WO2017069035) IMAGE-PROCESSING METHOD AND METHOD FOR CREATING SHADING REFERENCE DATA
Latest bibliographic data on file with the International Bureau    Submit observation

Pub. No.: WO/2017/069035 International Application No.: PCT/JP2016/080360
Publication Date: 27.04.2017 International Filing Date: 13.10.2016
IPC:
H04N 5/243 (2006.01) ,G02B 21/36 (2006.01) ,G06T 5/00 (2006.01) ,H04N 1/401 (2006.01) ,H04N 5/225 (2006.01)
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
G PHYSICS
02
OPTICS
B
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
21
Microscopes
36
arranged for photographic purposes or projection purposes
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
1
Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
40
Picture signal circuits
401
Compensating positionaly unequal response of the pick-up or reproducing head
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
Applicants:
株式会社SCREENホールディングス SCREEN HOLDINGS CO., LTD. [JP/JP]; 京都府京都市上京区堀川通寺之内上る4丁目天神北町1番地の1 Tenjinkita-machi 1-1, Teranouchi-agaru 4-chome, Horikawa-dori, Kamigyo-ku, Kyoto-shi, Kyoto 6028585, JP
Inventors:
藤本 博己 FUJIMOTO, Hiroki; JP
谷口 和隆 TANIGUCHI, Kazutaka; JP
Agent:
振角 正一 FURIKADO, Shoichi; JP
梁瀬 右司 YANASE, Yuji; JP
大西 一正 OHNISHI, Kazumasa; JP
Priority Data:
2015-20769122.10.2015JP
Title (EN) IMAGE-PROCESSING METHOD AND METHOD FOR CREATING SHADING REFERENCE DATA
(FR) PROCÉDÉ DE TRAITEMENT D'IMAGE ET PROCÉDÉ DE CRÉATION DE DONNÉES DE RÉFÉRENCE D'OMBRAGE
(JA) 画像処理方法およびシェーディング基準データ作成方法
Abstract:
(EN) The present invention provides a technique with which it is possible to effectively and stably correct uneven brightness in an image obtained by image capture. An image-processing method provided with: an image acquisition step (S101) for acquiring a raw image in which an object to be photographed is photographed together with an almost uniform background; an approximation step (S104) for specifying an approximate expression in which the two-dimensional luminance profile of the raw image is approximated to a probability density function of two-dimensional normal distribution; and a correction step (S105) for correcting the luminance value of each pixel constituting the raw image on the basis of the luminance value of the two-dimensional luminance profile represented by the approximate expression.
(FR) La présente invention concerne une technique permettant de corriger de manière efficace et stable une luminosité irrégulière dans une image obtenue par capture d'image. Un procédé de traitement d'image comprend : une étape d'acquisition d'image (S101) pour acquérir une image brute dans laquelle un objet à photographier est photographié conjointement à un arrière-plan presque uniforme ; une étape d'approximation (S104) pour spécifier une expression approximative dans laquelle une approximation du profil de luminance en deux dimensions de l'image brute est calculée avec une fonction de densité de probabilité de répartition normale en deux dimensions ; et une étape de correction (S105) pour corriger la valeur de luminance de chaque pixel constituant l'image brute sur la base de la valeur de luminance du profil de luminance en deux dimensions représenté par l'expression approximative.
(JA) 撮像により得られた画像における明暗ムラを効果的に、かつ安定的に補正することのできる技術を提供する。撮像対象物が略一様な背景と共に撮像された原画像を取得する画像取得工程(S101)と、原画像の二次元輝度プロファイルを二次元正規分布の確率密度関数に近似した近似式を特定する近似工程(S104)と、原画像を構成する各画素の輝度値を、近似式により表される二次元輝度プロファイルの輝度値に基づいて補正する補正工程(S105)とを備える画像処理方法である。
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, KE, KG, 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: Japanese (JA)
Filing Language: Japanese (JA)