ENDOSCOPE SYSTEM

• Main Authors: KOISO MANABU, YAMADA YUICHI
• Format: Patent
• Language: English; Japanese
• Published: 07.03.2019
• Subjects: DIAGNOSIS; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEDICAL OR VETERINARY SCIENCE; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS; SURGERY

To improve convenience.SOLUTION: An endoscope system 1 includes: a camera head 5 which is removably connected to eyepiece parts of many kinds of endoscopes and has an imaging part 52 which captures a subject image taken in by a connected endoscope; a detection part 92 which detects size of the subject image in the captured image on the basis of a brightness signal of each pixel in the captured image obtained by imaging with the imaging part 52; a recording part 98 which is associated with sizes of a plurality of mutually different subject images respectively and records a plurality of existing correction parameters for correcting optical distortion of the captured image; a parameter reading part 951 reading from the recording part 98 an existing correction parameter where size of the detected subject image detected by the detection part 92 is associated with size of the identical subject image among a plurality of existing correction parameters; and a distortion correction processing part 93 correcting optical distortion of the captured image by using the existing correction parameter read by the parameter reading part 951.SELECTED DRAWING: Figure 2 【課題】利便性の向上を図ること。【解決手段】内視鏡システム１は、複数種類の内視鏡の接眼部に着脱自在に接続され、接続した内視鏡にて取り込まれた被写体像を撮像する撮像部５２を有するカメラヘッド５と、撮像部５２による撮像で得られた撮像画像における画素毎の輝度信号に基づいて当該撮像画像内の被写体像の大きさを検出する検知部９２と、互いに異なる複数の被写体像の大きさにそれぞれ関連付けられ、撮像画像の光学歪みを補正するための複数の既存補正パラメータを記録する記録部９８と、記録部９８から複数の既存補正パラメータのうち検知部９２にて検出された被写体像の大きさと同一の被写体像の大きさが関連付けられた既存補正パラメータを読み出すパラメータ読出部９５１と、パラメータ読出部９５１にて読み出された既存補正パラメータを用いて撮像画像の光学歪みを補正する歪み補正処理部９３とを備える。【選択図】図２