IMAGING APPARATUS, CONTROL METHOD OF THE SAME, AND PROGRAM

• Main Authors: OBUSE TAKENORI, YAMASHITA YUSUKE, ISHIKAWA YOSHIKAZU, NISHIDA TOKUAKI, KIMURA TAKAYUKI
• Format: Patent
• Language: English; Japanese
• Published: 24.06.2021
• 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

To make it possible to obtain an unnaturally bright image by automatic exposure control by an imaging apparatus without the need for complicated operations by a user.SOLUTION: An imaging apparatus has a first imaging element for capturing an optical image of a subject obtained through a polarization filter having regions having a plurality of different polarization angles, information acquisition means for acquiring polarization information of the subject based on a plurality of pieces of image data based on signals output from the first imaging element, light metering means for performing light metering, and exposure control means for controlling exposure when capturing an image of the subject and acquiring image data based on a result of light measurement by the light metering means. The plurality of pieces of image data is a plurality of pieces of image data with different polarization angles obtained through regions having a plurality of different polarization angles of the polarization filter. The light metering means performs light metering by varying a weighting degree of light metering for the plurality of pieces of image data based on the polarization information.SELECTED DRAWING: Figure 1 【課題】 ユーザによる煩雑な操作を必要とせず、撮像装置による自動的な露出制御により不自然な明るさの画像が得られること。【解決手段】 異なる複数の偏光角度を有する領域を備えた偏光フィルタを介して得られた被写体の光学像を撮像する第１の撮像素子と、第１の撮像素子から出力された信号に基づく複数の画像データに基づいて、被写体の偏光情報を取得する情報取得手段と、測光を行う測光手段と、測光手段による測光の結果に基づいて被写体を撮像して画像データを取得する際の露出を制御する露出制御手段と、を有し、複数の画像データは、偏光フィルタの異なる複数の偏光角度を有する領域を介して得られた偏光角度が異なる複数の画像データであって、測光手段は、偏光情報に基づいて、複数の画像データに対する測光の重みづけ度合を異ならせることで測光行うことを特徴とする構成とした。【選択図】 図１