US 12,293,000 B2
Device and method for redacting records based on a contextual correlation with a previously redacted record
Grzegorz Gustof, Myslenice (PL); Stefan Koprowski, Myslenice (PL); Chris A Kruegel, Plainfield, IL (US); and Stuart J Boutell, Edinburgh (GB)
Assigned to MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed by MOTOROLA SOLUTIONS, INC., Chicago, IL (US)
Filed on Dec. 22, 2021, as Appl. No. 17/645,494.
Prior Publication US 2023/0195934 A1, Jun. 22, 2023
Int. Cl. G06F 21/62 (2013.01); G06V 20/40 (2022.01); G06V 40/10 (2022.01)
CPC G06F 21/6254 (2013.01) [G06V 20/41 (2022.01); G06V 40/103 (2022.01)] 20 Claims
OG exemplary drawing
 
1. A method of redacting records based on a contextual correlation with a previously redacted record, the method comprising:
obtaining, at an electronic computing device, redaction metadata associated with a previously redacted record, the redaction metadata identifying a segment within an unredacted record to which redaction was applied to generate the previously redacted record;
accessing, at the electronic computing device, from a records database, the unredacted record identified by the redaction metadata, the unredacted record including data in an unredacted form and further stored as a record that is separate from the previously redacted record;
processing, at the electronic computing device, the identified segment of the unredacted record to detect that a person or an object captured in an unredacted form within the identified segment of the unredacted record was redacted in the previously redacted record;
processing, at the electronic computing device, the identified segment of the unredacted record to detect characteristics of the person or the object;
obtaining, at the electronic computing device, at least one context attribute specifying a context in which the person or the object was captured in the unredacted form within the identified segment of the unredacted record;
identifying, at the electronic computing device, at least one other unredacted record that is associated with the unredacted record identified by the redaction metadata;
determining, at the electronic computing device, that characteristics of a person or an object captured in an unredacted form within at least one other segment of the at least one other unredacted record match with the characteristics of the person or the object captured in the unredacted form within the identified segment of the unredacted record;
obtaining, at the electronic computing device, at least one other context attribute specifying a context in which the person or the object was captured within the at least one other segment of the at least one other unredacted record;
determining, at the electronic computing device, a contextual correlation value based on a correlation between the at least one context attribute and the at least one other context attribute; and
when the contextual correlation value exceeds a correlation threshold, generating at least one other redacted record from the at least one other unredacted record by redacting the person or the object captured within the at least one other segment of the at least one other unredacted record.