Abstract:
A payload recovery system includes a reference halftone image of a data-bearing halftone image and a reference map of the data-bearing halftone image. The system further includes a cell alignment system for receiving a scanned image of a hard copy of the data-bearing halftone image and for generating an aligned scan of the scanned image using the reference halftone image and the reference map. A raw payload recovery system determines possible shift positions of each carrier cell of the aligned scan using a shift rule and the reference map; and a reconstructed data-bearing halftone image is generated by the raw payload recovery system using the possible shift positions and the reference halftone. The system also includes a recovered raw payload generated by the raw payload recovery system using the shift rule and the reference map.
Abstract:
A remote-controlled pointing system (32) includes a projector (36), an image sensor (34), and a controller (38). The projector (36) projects a beam (45) of light from a location in a projection plane (46) onto a scene (18). The image sensor (34) captures an image (54) of the scene (18) in a capture plane (50). The controller (38) performs operations that include transmitting the captured image (54) to a remote destination (14), receiving from the remote destination (14) a target beam location (44) in the capture plane (50), determining a location of the beam (45) in the capture plane (50), and changing the location in the projection plane (46) from which the beam (45) is projected based on the determined beam location and the target beam location (44).
Abstract:
A machine-implemented method of processing an input image includes receiving user input that manually identifies a location in the input image that corresponds to a potential redeye artifact. A set of detected redeye artifacts in the input image is received. One of the detected redeye artifacts that is closest to the manually identified location is identified. The identified detected redeye artifact is stored in a list of redeye artifacts that are identified with manual assistance if the identified detected redeye artifact is within a threshold distance from the manually identified location.
Abstract:
A remote-controlled pointing system (32) includes a projector (36), an image sensor (34), and a controller (38). The projector (36) projects a beam (45) of light from a location in a projection plane (46) onto a scene (18). The image sensor (34) captures an image (54) of the scene (18) in a capture plane (50). The controller (38) performs operations that include transmitting the captured image (54) to a remote destination (14), receiving from the remote destination (14) a target beam location (44) in the capture plane (50), determining a location of the beam (45) in the capture plane (50), and changing the location in the projection plane (46) from which the beam (45) is projected based on the determined beam location and the target beam location (44).
Abstract:
Document copying systems and methods include initiating a copy job for copying a document having document content. A log of the copy job is generated, and the document is scanned to create a document content image. The log is encoded using an input image to produce a data-bearing halftone image which is merged with the document content image. The merged data-bearing halftone image and the document content image are printed to produce a copy of the document.
Abstract:
A forensic verification system (900) extracts a print signature via a print signature extractor (910) from a captured image of a printed halftone. The system (900) utilizes a comparator (920) to compare the print signature to a reference signature stored in a registry to determine differences between the print signature and the reference signature. The system (900) utilizes a forensic analyzer (930) to perform a forensic analysis on the signatures based on the comparison to authenticate the printed halftone.
Abstract:
A forensic verification system (1100) extracts a print signature via a print signature extractor (1110) from an interior of a halftone contained in an image. The system (1100) utilizes a comparator (1120) to compare the print signature to a reference signature stored in a registry to determine differences between the print signature and the reference signature. The system (1100) utilizes a forensic analyzer (1130) to perform a forensic analysis on the signatures based on the comparison to authenticate the image.
Abstract:
A parallel test payload includes a bit sequence configured to be segmented into a plurality of sub-sequences having variable bit length carriers. Respective carriers are represented uniformly in each one of the plurality of sub-sequences.
Abstract:
A blur resistant barcode is disclosed. The blur resistant barcode comprise a plurality of parallel lines and spaces where information is encoded in the barcode by variations in the thicknesses of the plurality of parallel lines and by variations in the spacing between the plurality of parallel lines. The blur resistant barcode has at least one blur resistant feature that has a thickness in an axis of motion greater than a maximum thickness of any one of the plurality of parallel lines. The axis of motion is perpendicular to the plurality of parallel lines.
Abstract:
A blur resistant barcode is disclosed. The blur resistant barcode comprise a plurality of parallel lines and spaces where information is encoded in the barcode by variations in the thicknesses of the plurality of parallel lines and by variations in the spacing between the plurality of parallel lines. The blur resistant barcode has at least one blur resistant feature that has a thickness in an axis of motion greater than a maximum thickness of any one of the plurality of parallel lines. The axis of motion is perpendicular to the plurality of parallel lines.