IMAGING APPARATUS AND IMAGING METHOD

• Main Authors: TAKASU SHUSAKU, SAWADA YOSHIHITO, KIKUCHI TARO, YAMANAKA YUJI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2023
• 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 provide an imaging apparatus and an imaging method, configured to obtain imaging data of a railway tunnel having an evacuation site without causing overexposure or underexposure for a standard section and the evacuation site by one shooting.SOLUTION: An imaging apparatus includes: at least one imaging unit mounted on a mobile body to image a structure; a brightness adjustment unit which adjusts brightness of an imaging region of the imaging unit; a ranging unit which measures, before the imaging unit images the structure, distance information between the imaging unit and the structure; and an exposure control unit which controls, when the distance information measured by the ranging unit changes, exposure for the imaging unit using the distance information and characteristic information of the bright adjustment unit.SELECTED DRAWING: Figure 1 【課題】避難退避所を有する鉄道トンネルを撮影するにあたり、１度の撮影で標準断面および避難退避所ともに、白飛びおよび黒つぶれが無い撮影データを取得することができる撮影装置、および撮影方法を提供する。【解決手段】本発明は、移動体に設置された状態で構造物を撮影する少なくとも１つの撮影部と、前記撮影部の撮影領域の明るさを調整する明るさ調整部と、前記撮影部により前記構造物を撮影する前に、前記撮影部と前記構造物との間の距離情報を測距する測距部と、前記測距部により測距された前記距離情報が変化した場合に、前記距離情報および前記明るさ調整部の特性情報を利用して、前記撮影部に対する露光を制御する露光制御部と、を備える。【選択図】図１