Abstract:
A method of identifying images as matching comprises comparing two image templates using a master mask to select corresponding codes from the templates. The master mask excludes blocks from the matching process and/or weights blocks according to their known or expected reliability.
Abstract:
Embodiments described herein may include example embodiments of a method, article and apparatus for compressing data utilizing combinatorial coding which may be used for communicating between two or more components connected to an interconnection medium (e.g., a bus) within a single computer or digital data processing system, and/or for communication between computing platforms via a network or other interconnection medium.
Abstract:
A method of identifying images as matching comprises comparing two image templates using a master mask to select corresponding codes from the templates. The master mask excludes blocks from the matching process and/or weights blocks according to their known or expected reliability.
Abstract:
A method of approximating the inner or outer boundary of an iris comprises generating an approximate boundary representation (20) comprising a least squares approximation by a cosine transform series of a function of the angle (θ) about a fixed point (A) of the distance of measured points (10) on the boundary from the fixed point (A). More broadly, the method may be used to approximate the shape of any two-dimensional curve or figure.
Abstract:
Embodiments described herein may include example embodiments of a method, article and apparatus for compressing data utilizing adaptive combinatorial encoding with either specified occurrences or specified data length which may be used for communicating between two or more components connected to an interconnection medium (e.g., a bus) within a single computer or digital data processing system, and/or for communication between computing platforms via a network or other interconnection medium.
Abstract:
A method of pre-processing an image of an iris (114) partly occluded by eyelashes (116, 118) includes the steps of determining a predominant orientation at a local area (120) and identifying a feature representative of an eyelash, applying a directional filter, and replacing pixels of the feature using information from their non-occluded neighbours.
Abstract:
A method includes receiving, at a decoding device, first contents of a buffer, where the first contents of the buffer include at least a first data symbol. The first data symbol is coded into the first contents of the buffer based at least in part on a first radix of the first data symbol. The first data symbol is decoded from the first contents of the buffer. Based at least in part on the first radix of the first data symbol, it is determined whether the first contents of the buffer include a second data symbol. The second data symbol is decoded from the first contents of the buffer if the first contents include the second data symbol.
Abstract:
A method and apparatus for measuring the similarity of images comprising determining a plurality of displacement vectors indicative of the relative positions of similar pixels (230) or groups of similar pixels between a pair of images, and processing displacement vectors so determined to derive one or more quantities indicative of a degree of similarity between said pair of images.
Abstract:
Embodiments described herein may include example embodiments of a method, article and/or apparatus for coding data which may be used for communicating between two or more components connected to an interconnection medium (e.g., a bus) within a single computer or digital data processing system, and/or for communication between computing platforms via a network or other interconnection medium.