PROBLEM TO BE SOLVED: To simultaneously observe the same living body tissue by a normal light observation image and narrow band light observation by real time by a simple constitution.SOLUTION: The endoscope device includes a living body image information acquiring means which receives the subject image of a subject illuminated by illumination light from an illumination means and acquires living body image information of the subject, a band restriction means which is arranged on an optical path to the illumination means and the living body image information acquiring means to restrict at least one wavelength band among a plurality of wavelength bands allocated according to the invasion depth of the light to the subject to a prescribed band width, a living body image information conversion means which generates living body signal information in which the contrast of the tissue information of a deep part duplicated by a wide band signal which is not restricted to the prescribed band width is reinforced based on the living body image information acquired by the living body image information acquiring means, and a display image generating means for generating a display image based on the living body image signal information converted by the living body image information conversion means.COPYRIGHT: (C)2012,JPO&INPIT【課題】簡単な構成で、同一の生体組織をリアルタイムで通常光観察画像と狭帯域光観察とにより同時観察する。【解決手段】照明手段からの照明光で照明された被検体の被検体像を受光し、被検体の生体画像情報を取得する生体画像情報取得手段と、照明手段と生体画像情報取得手段に至る光路上に配置され、被検体に対する光の深達度に応じて配分された複数の波長帯域のうち少なくとも1つの波長帯域を所定帯域幅に制限する帯域制限手段と、生体画像情報取得手段が取得した生体画像情報に基づき、所定帯域幅に制限されていない広帯域な信号により再現される深部の組織情報のコントラストを増強させた生体画像信号情報を生成する生体画像情報変換手段と、生体画像情報変換手段により変換された生体画像信号情報に基づき、表示画像を生成する表示画像生成手段とを備える。【選択図】図1
