公开(公告)号：US20220338721A1

公开(公告)日：2022-10-27

申请号：US17727573

申请日：2022-04-22

Applicant: Canon U.S.A., Inc.

Inventor： Aaron David Selya ,  Lampros Athanasiou

IPC: A61B1/04 ,  A61B1/06 ,  A61B90/00 ,  A61B90/30

Abstract: Devices, systems, and methods perform optical-scanning operations to acquire fluorescence data values corresponding to fluorescence data collected from inside a bodily lumen. A processor receives the fluorescence data; calculates a threshold background fluorescence value based on a central tendency of at least part of the fluorescence data values; discards fluorescence data values that are lower than the threshold background fluorescence value, thereby creating corrected fluorescence data values; and generates an image of the bodily lumen based on the corrected fluorescence data values.