Patent ID: 11944778
Assignee: CANON U.S.A., INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 3:
4. The imaging device of claim 1, wherein the one or more processors further operate to one or more of the following:
(i) acquire a next frame of the region of interest (ROI), or use the region of interest (ROI) shown or as in the reference frame as a reference region of interest (ROI) where values from the reference frame are indicative of a possible preclearing image;
(ii) identify a first frame of the region of interest (ROI);
(iii) store the first frame as an original image of the region of interest (ROI);
(iv) store the first frame as an original image of the region of interest (ROI) in a memory;
(v) compute or determine the clearance metric, the clearance metric including a comparison of data, or intensity value(s), for one or more frames of the region of interest (ROI) with data, or intensity value(s), for the reference frame, or the clearance metric operating to measure the amount of, or the level in, the change; and/or
(vi) in the event that the clearance metric is not above the threshold, then return to acquire a next frame of the region of interest (ROI), and compute or determine a new clearance metric until the clearance metric is above the threshold.