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1. WO2020060235 - CAMERA DEVICE

Publication Number WO/2020/060235
Publication Date 26.03.2020
International Application No. PCT/KR2019/012157
International Filing Date 19.09.2019
IPC
H04N 5/232 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
232Devices for controlling television cameras, e.g. remote control
H04N 5/247 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
222Studio circuitry; Studio devices; Studio equipment
225Television cameras
247Arrangement of television cameras
G02B 3/12 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
3Simple or compound lenses
12Fluid-filled or evacuated lenses
Applicants
  • 엘지이노텍 주식회사 LG INNOTEK CO., LTD. [KR/KR]; 서울시 강서구 마곡중앙10로 30 30, Magokjungang 10-ro, Gangseo-gu, Seoul 07796, KR
Inventors
  • 김민 KIM, Min; KR
  • 오준석 OH, Jun Seok; KR
Agents
  • 허용록 HAW, Yong Noke; KR
Priority Data
10-2018-011387321.09.2018KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) CAMERA DEVICE
(FR) DISPOSITIF DE CAMÉRA
(KO) 카메라 장치
Abstract
(EN)
According to an embodiment of the present invention, in a camera device including first and second cameras, focal position information of the first camera and focal position information of the second camera are matched with each other. Also, the accuracy of the current focal position of the first camera is determined based on the phase difference of images obtained by the first camera when the first camera is auto-focused. Subsequently, when the accuracy of the current focal position of the first camera is low, an accurate focal position of the first camera is tracked by using the matched focal position information of the second camera. As described above, according to the present embodiment, when an auto-focusing function of the first camera is activated, focal position movements are tracked by using the focal position information of the second camera as well as zoom tracking of the first camera, and thus, the accuracy can be improved.
(FR)
Selon un mode de réalisation de la présente invention, dans un dispositif de caméra comprenant des première et seconde caméras, des informations de position focale de la première caméra et des informations de position focale de la seconde caméra sont mises en correspondance les unes avec les autres. De plus, la précision de la position focale actuelle de la première caméra est déterminée sur la base de la différence de phase d'images obtenues par la première caméra lorsque la première caméra est auto-focalisée. Par la suite, lorsque la précision de la position focale actuelle de la première caméra est faible, une position focale précise de la première caméra est suivie à l'aide des informations de position focale mises en correspondance de la seconde caméra. Comme décrit ci-dessus, conformément au présent mode de réalisation, lorsqu'une fonction de mise au point automatique de la première caméra est activée, des mouvements de position focale sont suivis en utilisant les informations de position focale de la seconde caméra ainsi que le suivi de zoom de la première caméra, et ainsi, la précision peut être améliorée.
(KO)
본 발명에 따른 실시 예에서는, 제 1 및 2 카메라를 포함하는 카메라 장치에서, 제 1 카메라의 초점 위치 정보와 상기 제 2 카메라의 초점 위치 정보를 상호 매칭시킨다. 그리고, 상기 제 1 카메라의 자동 초점 시에 상기 제 1 카메라를 통해 획득된 영상의 위상 차이를 토대로 상기 제 1 카메라의 현재 초점 위치에 대한 정확도를 판단한다. 이후, 상기 제 1 카메라의 현재 초점 위치의 정확도가 낮은 경우, 상기 매칭에 따른 상기 제 2 카메라의 초점 위치 정보를 이용하여 상기 제 1 카메라의 정확한 초점 위치를 추적한다. 상기와 같이, 본 실시 예에서는 상기 제 1 카메라의 자동 초점 기능 구현 시에, 상기 제 1 카메라의 줌 트랙킹뿐 아니라, 상기 제 2 카메라의 초점 위치 정보를 이용하여 초점 이동 위치를 추적함으로써, 정확도를 향상시킬 수 있다.
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