| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an endoscope system that separately displays an extremely-superficial vessel and a superficial vessel and can selectively emphasize and suppress those vessels.SOLUTION: An endoscope system images a sample illuminated with purple light and green light and then acquires RGB image signals. The system generates a base image on the basis of the RGB image signals. The system applies frequency filtering processing to a B image signal and then acquires vessel extraction signals obtained by extracting an extremely-superficial vessel C1A, a superficial vessel C1B and an intermediate vessel C2 that mutually differ in depth. The system obtains edge intensity of each vessel in the vessel extraction signals. The system applies display control processing based on the edge intensity of each vessel to the base image. Accordingly, the system generates: a first special image that separately displays the extremely-superficial vessel C1A, the superficial vessel C1B and the intermediate vessel C2; or a second special image that displays the extremely-superficial vessel C1A, the superficial vessel C1B and the intermediate vessel C2 selectively in an emphasized or suppressed form.</p> |
