CAMERA DEVICE AND SHAKE CORRECTION METHOD

• Main Authors: YAMADA HIDEAKI, SHIMAOKA TAKAYUKI, OHARA MASAMITSU, IIIZUMI MASAOMI, WADA JOJI
• Format: Patent
• Language: English; Japanese
• Published: 08.11.2018
• 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; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To estimate lens characteristics changed due to lens interchange with high accuracy, save time and labor of a worker during input of the lens characteristics, mitigate an impact from shakes of a device body to prevent or reduce image quality deterioration in an image to be taken, and prevent a drop in reliability as data on an imaging element.SOLUTION: A camera device includes: a lens which light from a subject enters; an imaging element for taking an image based on the light from the subject; a shake sensor for detecting shakes of the camera device; a shake correction mechanism for holding a holder holding the imaging element and correcting shakes of a photographic image taken with the imaging element by driving the holder; a characteristic estimation unit for estimating the characteristics of the lens on the basis of a detection value of the shake sensor and an amount of shake correction of the shake correction mechanism; and a control unit for making the shake correction mechanism drive the holder by using the detection value of the shake sensor and estimation results of the characteristics of the lens.SELECTED DRAWING: Figure 19 【課題】レンズの交換に伴って変更されたレンズ特性を高精度に推定し、作業者のレンズ特性の入力時の手間を省き、装置本体の揺れの影響を緩和して撮像画像の画質劣化を抑制し、撮像素子のデータとしての信頼性の低下を防ぐ。【解決手段】カメラ装置は、被写体光が入射されるレンズと、被写体光に基づく画像を撮像する撮像素子と、カメラ装置の揺れを検出する揺れセンサと、撮像素子を保持するホルダを保持し、ホルダの駆動により撮像素子により撮像された撮像画像を揺れ補正する揺れ補正機構と、揺れセンサの検出値と揺れ補正機構の揺れ補正量とに基づいて、レンズの特性を推定する特性推定部と、揺れセンサの検出値とレンズの特性の推定結果とを用いて、揺れ補正機構にホルダを駆動させる制御部と、を備える。【選択図】図１９