Patent ID: 11954893
Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method comprising:
identifying a bounding box around a character in an image;
identifying multiple sub-frames within a frame around the bounding box; and
for at least a sub-frame of the sub-frames:
determining whether the sub-frame satisfies a plurality of criteria, wherein the plurality of criteria comprises a size threshold and whether the sub-frame is empty;
in response to determining that the sub-frame satisfies the plurality of criteria, designating the sub-frame a negative example of one or more characters in the image; and
in response to determining that the sub-frame is empty but does not satisfy the size threshold, discarding the sub-frame without designating the sub-frame as a negative example.