Patent ID: 11928877
Assignee: NATIONSTAR MORTGAGE LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 10:
11. A system for automatic context-based document annotation, comprising:
a first computing system comprising a processor executing an annotation classifier, wherein the annotation classifier is configured to:
receive a candidate image of a document for annotation identification;
detect a set of structural features of the candidate image;
for each of a plurality of template images, calculate a similarity score between structural features of the template image and the detected set of structural features by determining a correlation coefficient between the structural features of each template image and the detected set of structural features, the correlation coefficient comprising a weighted combination of luminance, contrast, and structure comparisons for each of a plurality of portions of the template image and the detected set of structural features of the candidate image;
select a template image having a highest similarity score; and
add, to the candidate image, one or more annotation labels according to a corresponding one or more annotation labels of the selected template image.