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1. (WO2019064660) IMAGE CAPTURING DEVICE AND ADJUSTMENT METHOD THEREFOR
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Pub. No.: WO/2019/064660 International Application No.: PCT/JP2018/015682
Publication Date: 04.04.2019 International Filing Date: 16.04.2018
IPC:
H04N 5/243 (2006.01) ,G01C 3/06 (2006.01) ,H04N 5/225 (2006.01) ,H04N 9/09 (2006.01) ,H04N 9/73 (2006.01) ,H04N 13/246 (2018.01)
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
01
MEASURING; TESTING
C
MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
3
Measuring distances in line of sight; Optical rangefinders
02
Details
06
Use of electric means to obtain final indication
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
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
04
Picture signal generators
09
with more than one pick-up device
H ELECTRICITY
04
ELECTRIC COMMUNICATION TECHNIQUE
N
PICTORIAL COMMUNICATION, e.g. TELEVISION
9
Details of colour television systems
64
Circuits for processing colour signals
73
colour balance circuits, e.g. white balance circuits, colour temperature control
[IPC code unknown for H04N 13/246]
Applicants:
日立オートモティブシステムズ株式会社 HITACHI AUTOMOTIVE SYSTEMS, LTD. [JP/JP]; 茨城県ひたちなか市高場2520番地 2520, Takaba, Hitachinaka-shi, Ibaraki 3128503, JP
Inventors:
崎田 康一 SAKITA Koichi; JP
Agent:
青稜特許業務法人 SEIRYO I.P.C.; 東京都中央区八丁堀二丁目24番2号 24-2, Hatchobori 2-chome, Chuo-ku, Tokyo 1040032, JP
Priority Data:
2017-18424826.09.2017JP
Title (EN) IMAGE CAPTURING DEVICE AND ADJUSTMENT METHOD THEREFOR
(FR) DISPOSITIF DE CAPTURE D'IMAGE ET PROCÉDÉ D’AJUSTEMENT CORRESPONDANT
(JA) 撮像装置およびその調整方法
Abstract:
(EN) The present invention provides an image capturing device for ensuring accuracy in the luminance or chromaticity measurement of a subject, and minimizing performance deterioration according to sensitivity correction. This image capturing device 100 is provided with: a sensitivity correction unit 5 which corrects sensitivity characteristics of at least two image capturing units 11 so as to become identical; a storage unit 19 which stores a correction parameter of the sensitivity correction unit 6; and a luminance calculation unit 22 which calculates a luminance value of a subject on the basis of the correction parameter stored in the storage unit 19 and shutter values of the image capturing units 11. Here, the sensitivity correction unit 5 corrects the sensitivity characteristics of the at least two image capturing units 11 so as to be identical to those of an image capturing unit having the highest sensitivity. In addition, the sensitivity correction unit 5 performs correction so that the sensitivity characteristics for respective colors have a prescribed ratio, and the luminance calculation unit 22 calculates a luminance value for each color of the subject.
(FR) La présente invention concerne un dispositif de capture d'image permettant d’assurer une précision de mesure de la luminance ou de la chromaticité d'un sujet, et de minimiser une détérioration de performance en fonction d'une correction de la sensibilité. Ledit dispositif de capture d'image (100) comprend : une unité de correction de sensibilité (5) qui corrige des caractéristiques de sensibilité d'au moins deux unités de capture d'image (11) de façon à les rendre identiques ; une unité de mémoire (19) qui enregistre un paramètre de correction de l'unité de correction de sensibilité (6) ; et une unité de calcul de luminance (22) qui calcule une valeur de luminance d'un sujet sur la base du paramètre de correction enregistré dans l'unité de mémoire (19) et des valeurs d'obturateur des unités de capture d'image (11). Ici, l'unité de correction de sensibilité (5) corrige les caractéristiques de sensibilité des au moins deux unités de capture d'image (11) pour les rendre identiques à celles d'une unité de capture d'image présentant la sensibilité la plus élevée. De plus, l'unité de correction de sensibilité (5) effectue une correction de telle sorte que les caractéristiques de sensibilité pour des couleurs respectives présentent un rapport prescrit, et l'unité de calcul de luminance (22) calcule une valeur de luminance pour chaque couleur du sujet.
(JA) 本発明は、被写体の輝度や色度の測定精度を確保しつつ、感度補正に伴う性能劣化を最小化するための撮像装置を提供する。撮像装置100は、少なくとも2つの撮像部11の感度特性が同一になるように補正する感度補正部5と、感度補正部5における補正パラメータを記憶する記憶部19と、記憶部19に記憶した補正パラメータと撮像部11のシャッタ値に基づいて被写体の輝度値を算出する輝度算出部22と、を備える。ここに感度補正部5は、少なくとも2つの撮像部11の感度特性を、感度が最も高い撮像部の感度特性に一致するように補正する。さらに感度補正部5は、各色に対する感度特性が所定の比になるように補正するとともに、輝度算出部22は、被写体の各色に対する輝度値を算出する。
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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, 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: Japanese (JA)
Filing Language: Japanese (JA)