SCANNING ENDOSCOPE DEVICE, IMAGE PROCESSING DEVICE, AND IMAGE PROCESSING METHOD

摘要

This scanning endoscope device (1) comprises: a light source unit (2) that emits illumination light; an optical fiber (3) that guides the illumination light and radiates the light from the tip end with directivity; a shutter (4) and an intermittent emission control unit (5) that control the radiation period and the interruption period of the illumination light in accordance with a predetermined cycle; a drive element (7) and a scan drive unit (8) that make the tip end of the optical fiber (3) perform scanning; a light-detecting unit (12) that detects light from the scanning range of the tip end of the optical fiber (3); an external-light-component removal unit (13) that extracts returned light components of the illumination light by removing, from the detection result of the light-detecting unit (12) within the radiation period, external-factor light components found on the basis of the detection result of the light-detecting unit (12) within the interruption period; and an image processing unit (15) that constructs an image from the returned light components on the basis of information from the scan drive unit (8) about the direction of the tip end of the optical fiber (3).