PROBLEM TO BE SOLVED: To provide an operator with information for determining which part in an insertion-receiving body is imaged.SOLUTION: Insertion state information on an insertion part 31 inserted into the inside of an insertion-receiving body 2 is acquired by an insertion state acquisition part 61, and shape information on the insertion-receiving body 2 is acquired by an insertion-receiving body shape acquisition part 62. The insertion state information and the shape information on the insertion-receiving body are input to a positional relationship calculation part 63, and positional relationships of the insertion part 31 in relation to the insertion-receiving body 2 are calculated. When the result of the calculation by the positional relationship calculation part 63 is output by an output part 64, an output state of the calculation result by the output part 64 is controlled by a control part 66.COPYRIGHT: (C)2014,JPO&INPIT【課題】被挿入体内のどこを撮像しているのかを判断するための情報を操作者に提供すること。【解決手段】挿入状態取得部61によって、被挿入体2内部に挿入される挿入部31の挿入状態情報を取得し、被挿入体形状取得部62によって、被挿入体2の形状情報を取得し、それら挿入状態情報と被挿入体形状情報を位置関係演算部63に入力して、被挿入体2に対する挿入部31の位置関係を演算する。そして、出力部64によってその位置関係演算部63の演算結果を出力する際に、制御部66によって、その出力部64での演算結果の出力状態を制御する。【選択図】図1
