New pending patent applications are published by the USPTO on Thursdays. This week's Spotlight Applications concern aspects of digital watermarking and digital fingerprinting. Assigned to NCR, the first application discloses techniques for document geometric deformation watermarking and tracking. Assigned to Dell, the second application discloses techniques for image based spam blocking.
20170124795, "Document geometric deformation watermarking and tracking," assigned to NCR.
Various embodiments herein each include at least one of systems, methods, and software that assists in identification of a source of an unauthorized disclosure of a document, such as a public disclosure of check, receipt, or other document type. One method embodiment includes receiving a request for a stored document image from a requestor and retrieving the requested stored document image. This method may then apply a parameterized image deformation algorithm according to at least one input parameter to generate a watermarked image and then stores the at least one parameter and an identifier of the requestor in association with an identifier of the requested stored document in a watermarked image log. The watermarked image is then transmitted to the requestor.
20170126601, "Image based spam blocking," assigned to Dell.
A fingerprint of an image identified within a received message is generated following analysis of the message. A spam detection engine identifies an image within a message and converts the image into a grey scale image. The spam detection engine analyzes the grey scale image and assigns a score. A fingerprint of the grey scale image is generated based on the score. The fingerprint may also be based on other factors such as the message sender's status (e.g. blacklisted or whitelisted) and other scores and reports generated by the spam detection engine. The fingerprint is then used to filter future incoming messages.