IMAGING DEVICE

• Main Authors: OTA SEIYA, CHINO SHUNSUKE, HAGA MINORU
• Format: Patent
• Language: English; Japanese
• Published: 05.01.2017
• 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; CALCULATING; CINEMATOGRAPHY; COMPUTING; COUNTING; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; ELECTROGRAPHY; HOLOGRAPHY; PHOTOGRAPHY; PHYSICS; PICTORIAL COMMUNICATION, e.g. TELEVISION

PROBLEM TO BE SOLVED: To provide an imaging device capable of preventing the quality of an obtained image from degrading.SOLUTION: When a monitor camera 100 and the subject distance are infinity, and an image quality evaluation value E calculated based on the sharpness F and the luminance dispersion value variant Σ is less than an image quality evaluation threshold Eset in the monitor camera 100, an infrared light pass filter is inserted. When the subject distance is infinity and the image quality evaluation value E goes above the image quality evaluation threshold Eset in the monitor camera 100, or when the subject distance is not infinity, the infrared light pass filter is extracted.SELECTED DRAWING: Figure 5 【課題】得られる画像の品質が低下するのを防止することができる撮像装置を提供する。【解決手段】監視カメラ１００及び被写体の被写体距離が無限遠であり且つ鮮鋭度Ｆ及び輝度分散値Σに基づいて算出される画質評価値Ｅが監視カメラ１００に設定されている画質評価閾値Ｅｔｈ未満であるとき、赤外光パスフィルタは挿入され、被写体距離が無限遠であり且つ画質評価値Ｅが監視カメラ１００に設定されている画質評価閾値Ｅｔｈ以上であるとき、又は被写体距離が無限遠でないとき、赤外光パスフィルタは抜出される。【選択図】図５