Nicharee RangseekajeeSukanya PhongsuphapMahidol University2018-05-032018-05-032011-12-01Computing in Cardiology. Vol.38, (2011), 549-5522325887X232588612-s2.0-84859984672https://repository.li.mahidol.ac.th/handle/20.500.14594/11749Endoscopic surgery has brought about massive changes in cardiac and thoracic surgery. The therapeutic capabilities of endoscopy provide beneficial diagnosis and treatment for physician. Although, the endoscopic surgery shows a marked improvement in diagnosis and treatment, the endoscopy video still has some frames that contain no useful information. We need to distinguish the informative frames from the non-informative frames in order to utilize information from both of them for further operations for developing Computer Aided Diagnosis systems. This paper proposes a method based on edge information analysis to distinguish informative frames and non-informative frames by utilizing the Isolated Pixel Ratio Value (IPRV). The accuracy of the proposed method was remarkably higher than that of the other edge-based technique. Results indicate that the proposed method is an effective method for informative and non-informative thoracic endoscopy frame classification. © 2011 CCAL.Mahidol UniversityComputer ScienceMedicineConference PaperSCOPUS