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1. WO2006013945 - IMAGING DEVICE, IMAGING METHOD, AND IMAGING CONTROL PROGRAM

Publication Number WO/2006/013945
Publication Date 09.02.2006
International Application No. PCT/JP2005/014341
International Filing Date 04.08.2005
IPC
H04N 5/238 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
235Circuitry for compensating for variation in the brightness of the object
238by influencing optical part of the camera
H04N 101/00 2006.1
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
101Still video cameras
CPC
H04N 5/2354
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
235Circuitry ; or methods; for compensating for variation in the brightness of the object ; , e.g. based on electric image signals provided by an electronic image sensor
2354by influencing the scene brightness using illuminating means
H04N 5/238
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, TV cameras, video cameras, camcorders, webcams, camera modules for embedding in other devices, e.g. mobile phones, computers or vehicles
225Television cameras ; ; Cameras comprising an electronic image sensor, e.g. digital cameras, video cameras, camcorders, webcams, camera modules specially adapted for being embedded in other devices, e.g. mobile phones, computers or vehicles
235Circuitry ; or methods; for compensating for variation in the brightness of the object ; , e.g. based on electric image signals provided by an electronic image sensor
238by influencing the optical part of the camera, ; e.g. diaphragm, intensifier, fibre bundle
H04N 5/374
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
30Transforming light or analogous information into electric information
335using solid-state image sensors [SSIS]
369SSIS architecture; Circuitry associated therewith
374Addressed sensors, e.g. MOS or CMOS sensors
Applicants
  • ソニー株式会社 SONY CORPORATION (AllExceptUS)
  • 田中風人 TANAKA, Kazato (UsOnly)
  • 千葉 卓也 CHIBA, Takuya (UsOnly)
  • 林 直樹 HAYASHI, Naoki (UsOnly)
Inventors
  • 田中風人 TANAKA, Kazato
  • 千葉 卓也 CHIBA, Takuya
  • 林 直樹 HAYASHI, Naoki
Agents
  • 中村 友之 NAKAMURA, Tomoyuki
Priority Data
2004-22966205.08.2004JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) IMAGING DEVICE, IMAGING METHOD, AND IMAGING CONTROL PROGRAM
(FR) DISPOSITIF D'IMAGERIE, PROCÉDÉ D'IMAGERIE ET PROGRAMME DE COMMANDE D'IMAGERIE
(JA) 撮像装置、撮像方法および撮像制御プログラム
Abstract
(EN) The amount of light adequate for main flash can be highly precisely computed irrespective of the intensity of extraneous light in the case of flash imaging by shortening the exposure time for preliminary flash. Before the main flash, an exposure before preliminary flash and an exposure for preliminary flash are carried out. In the exposure before preliminary flash, an exposure of all the pixels of an imaging element is simultaneously carried out at timing T91, and then the pixel signals of the pixels are intermittently read at predetermined pixel intervals at timing T92. In the exposure for preliminary flash, an exposure of all the pixels ofthe imaging element is simultaneously started at timing T94, a preliminary flash is carried out, and the pixel signals of the pixels are intermittently read at predetermined pixel intervals at timing T95. The brightness of the image is detected from the captured image signals at the exposures, and the amount of light for main flash is computed from the difference detected value.
(FR) Dans le dispositif d'imagerie objet de cette invention, la quantité de lumière adéquate pour un flash principal peut être calculée de manière hautement précise indépendamment de l'intensité de lumière parasite dans le cas d'une imagerie avec flash par raccourcissement du temps d'exposition pour le flash préliminaire. Avant le flash principal, une exposition avant flash principal et une exposition pour flash préliminaire sont réalisées. Dans l'exposition avant flash préliminaire, une exposition de tous les pixels d'un élément d'imagerie est réalisée simultanément au temps T91, puis les signaux des pixels sont lus par intermittence à des intervalles de pixels prédéterminés au temps T92. Dans l'exposition pour flash préliminaire, une exposition de tous les pixels de l'élément d'imagerie est débutée simultanément au temps T94, un flash préliminaire est réalisé, et les signaux des pixels sont lus de manière par intermittence à des intervalles de pixels prédéterminés au temps T95. La luminosité de l'image est détectée à partir des signaux d'image capturés lors des expositions, et la quantité de lumière pour le flash principal est calculée à partir de la valeur détectée de différence.
(JA)  フラッシュ撮影の際に、予備発光時の露光時間をできるだけ短くして、本発光時の適切な光量を外光の大きさに関係なく高精度に演算できるようにする。 フラッシュの本発光の前に、予備発光前露光動作および予備発光時露光動作を行う。予備発光前露光動作では、タイミングT91で撮像素子の全画素の露光動作を同時に開始した後、タイミングT92で各画素の画素信号を所定の画素間隔で間欠的に読み出す。予備発光時露光動作では、タイミングT94で撮像素子の全画素の露光動作を同時に開始した後、フラッシュの予備発光を行い、タイミングT95で各画素の画素信号を所定の画素間隔で間欠的に読み出す。そして、各露光動作での撮像画像信号を基に画像の明るさを検波し、その差分検波値を基にフラッシュの本発光時の光量を演算する。
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