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1. (WO2017195863) IMAGING DEVICE
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Pub. No.: WO/2017/195863 International Application No.: PCT/JP2017/017866
Publication Date: 16.11.2017 International Filing Date: 11.05.2017
IPC:
G01J 3/10 (2006.01) ,G01J 3/46 (2006.01) ,G01N 21/01 (2006.01) ,G03B 15/00 (2006.01) ,G03B 15/02 (2006.01) ,G03B 15/05 (2006.01) ,H04N 5/225 (2006.01) ,H04N 5/235 (2006.01)
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
02
Details
10
Arrangements of light sources specially adapted for spectrometry or colorimetry
G PHYSICS
01
MEASURING; TESTING
J
MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRA-RED, VISIBLE OR ULTRA-VIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
3
Spectrometry; Spectrophotometry; Monochromators; Measuring colours
46
Measurement of colour; Colour measuring devices, e.g. colorimeters
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
01
Arrangements or apparatus for facilitating the optical investigation
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
15
Special procedures for taking photographs; Apparatus therefor
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
15
Special procedures for taking photographs; Apparatus therefor
02
Illuminating scene
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
B
APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
15
Special procedures for taking photographs; Apparatus therefor
02
Illuminating scene
03
Combinations of cameras with lighting apparatus; Flash units
05
Combinations of cameras with electronic flash apparatus; Electronic flash units
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
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
Applicants:
国立大学法人九州大学 KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION [JP/JP]; 福岡県福岡市東区箱崎六丁目10番1号 6-10-1, Hakozaki, Higashi-ku, Fukuoka-shi, Fukuoka 8128581, JP
Inventors:
長原 一 NAGAHARA Hajime; JP
池田 哲夫 IKEDA Tetsuo; JP
大崎 誠 OHSAKI Makoto; JP
Agent:
平井 安雄 HIRAI Yasuo; JP
Priority Data:
2016-09523111.05.2016JP
Title (EN) IMAGING DEVICE
(FR) DISPOSITIF D’IMAGERIE
(JA) 撮像装置
Abstract:
(EN) [Problem] To provide an imaging device capable of reducing occurrence of flicker in an active illumination system by combining a plurality of light sources of which the wavelength bands are different from each other and by reducing a color difference among the light sources of required wavelengths. [Solution] The imaging device is provided with: a plurality of light sources 17 that emit light having different wavelengths; a light source selecting unit 22 which selects, from among the light sources 17, a plurality of selected light sources each of which emits light having a specified wavelength specified on the basis of the characteristics of an object 27 to be imaged; a light source extracting unit 24 which extracts, from among non-selected light sources other than the selected light sources, one that has such a wavelength as to, when the one non-selected light source and one of the plurality of selected light sources are combined, reduce a color difference between the one selected light source and the other selected light sources; the light source 17 that illuminates the object 27 to be imaged, by using a light source obtained by combining the selected one of the selected light sources and the extracted non-selected light source while sequentially switching the light source for each of the selected light sources; and an imaging element 11 that images the object 27 to be imaged, by using the illuminating light source.
(FR) Le problème décrit par la présente invention est de fournir un dispositif d'imagerie apte à réduire l'apparition de papillotement dans un système d'éclairage actif en combinant une pluralité de sources de lumière dont les bandes de longueur d'onde sont différentes les unes des autres et en réduisant une différence de couleur entre les sources de lumière de longueurs d'onde requises. La solution selon l'invention concerne un dispositif d'imagerie qui comprend : une pluralité de sources de lumière (17) qui émettent de la lumière ayant des longueurs d'onde différentes ; une unité de sélection de source de lumière (22) qui sélectionne, parmi les sources de lumière (17), une pluralité de sources de lumière sélectionnées dont chacune émet de la lumière ayant une longueur d'onde spécifiée qui est spécifiée sur la base des caractéristiques d'un objet (27) à imager ; une unité d'extraction de source de lumière (24) qui extrait, parmi des sources de lumière non sélectionnées autres que les sources de lumière sélectionnées, une source qui a une longueur d'onde permettant, lorsque ladite source de lumière non sélectionnée et ladite source parmi la pluralité de sources de lumière sélectionnées sont combinées, de réduire une différence de couleur entre ladite source de lumière sélectionnée et les autres sources de lumière sélectionnées ; la source de lumière (17) qui éclaire l'objet (27) à imager, en utilisant une source de lumière obtenue en combinant ladite source de lumière sélectionnée parmi les sources de lumière sélectionnées et la source de lumière non sélectionnée extraite tout en commutant séquentiellement la source de lumière pour chacune des sources de lumière sélectionnées ; et un élément d'imagerie (11) qui image l'objet (27) à imager, à l'aide de la source de lumière d'éclairage.
(JA) 【課題】アクティブ照明方式において波長帯域が異なる複数の光源を合成し、必要となる波長の光源間における色差を小さくすることで、フリッカの発生を低減することができる撮像装置を提供する。 【解決手段】異なる波長で発光する複数の光源17と、光源17のうち、撮像対象物27の特性に基づいて特定された特定波長で発光する光源17を選択光源として複数選択する光源選択部22と、選択された複数の選択光源のうち、一の選択光源に合成されることで当該一の選択光源と他の選択光源との色差が低減する波長を有する光源17を選択光源以外の非選択光源から抽出する光源抽出部24と、選択された選択光源と抽出された非選択光源とを合成した光源で、選択光源ごとに順次光源を切り替えて撮像対象物27を照射する光源17と、照射された光源で撮像対象物27を撮像する撮像素子11とを備える。
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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, 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)