IMAGING DEVICE, IMAGING DEVICE CONTROL METHOD, AND CONTROL PROGRAM

• Main Author: KOBAYASHI TARO
• Format: Patent
• Language: English; Japanese
• Published: 22.06.2015
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To avoid image quality degradation of a live view image and reduce power consumption while executing high-speed, high-accuracy focusing control.SOLUTION: A control unit 106 exerts a read control over a first pixel group among a plurality of pixels in an imaging element 102 to obtain a first image signal, and exerts a read control over a second pixel group among the pixels to obtain a second image signal. The control unit 106 exerts a second focusing control based on the second image signal obtained by reading of the second pixel group if a focusing state is not obtained by a first focusing control exerted based on the first image signal at a time of displaying a live view image in response to the first image signal on a display unit 109. 【課題】高速でしかも高精度のフォーカス制御を行いつつ、ライブビュー画像の画質の低下を回避して消費電力を低減する。【解決手段】制御部１０６は撮像素子１０２において複数の画素のうち第１の画素群の読み出し制御を行って第１の画像信号を得るとともに、複数の画素のうち第２の画素群の読み出し制御を行って第２の画像信号を得る。制御部は第１の画像信号に応じたライブビュー画像を表示部１０９に表示する際、第１の画像信号に基づいて行われる第１のフォーカス制御で合焦状態が得られない場合、第２の画素群の読み出しで得られた第２の画像信号に基づいて第２のフォーカス制御を行う。【選択図】図１