Abstract:
A communication system having a program of machine-readable instructions for solving an ILS problem, tangibly embodied on a computer readable memory and executable by a digital data processor, to perform actions directed toward outputting a set of a-posteriori probability vectors.
Abstract:
A pattern recognition method of dynamic time warping of two sequences of feature sets onto each other is provided. The method includes the steps of creating a rectangular graph having the two sequences on its two axes, defining a swath of width r, where r is an odd number, centered about a diagonal line connecting the beginning point at the bottom left of the rectangle to the endpoint at the top right of the rectangle and also defining r-1 lines within the swath. The lines defining the swath are parallel to the diagonal line. Each array element k of an r-sized array is associated with a separate array of the r lines within the swath and for each row of the rectangle, the dynamic time warping method recursively generates new path values for each array element k as a function of the previous value of the array element k and of at least one of the current values of the two neighboring array elements k-1 and k+1 of the array element k. The latter step of recursively generating new path values is repeat for all of the rows of the rectangle and the value of the middle array element is selected as the output value sought.
Abstract:
A method of generating a category model for classifying medical images. The method comprises providing a plurality of medical images each categorized as one of a plurality of categorized groups, generating an index of a plurality of visual words according to a distribution of a plurality of local descriptors in each the image, modeling a category model mapping a relation between each visual word and at least one of the categorized groups according to the index, and outputting the category model for facilitating the categorization of an image based on local descriptors thereof.
Abstract:
A system is disclosed for stitching a plurality of reconstructions of three-dimensional surface features of at least one object in a scene to relate the reconstructions to a common coordinate system. Each reconstruction is generated from a plurality of two-dimensional images of the scene, and each reconstruction is defined relative to a respective one of a plurality of reconstruction coordinate systems defined relative to one of the images in the scene. The system generates, from at least some of the images, values for translational and rotational components relating a respective reconstruction coordinate system to the common coordinate system. Thereafter, the system uses the values of the translational and rotational components to convert coordinates of the surface features in the respective reconstruction coordinate systems to the common coordinate system. In embodiments of the system, the common coordinate system is selected to be one of the reconstruction coordinate systems, and the values for translational and rotational components relating the other reconstruction coordinate system(s) to the common coordinate system uses overlapping regions of the images which define the respective reconstruction coordinate systems. In those embodiments, the system first determines the dominate translation that best aligns the largest portions of the image which defines the common coordinate system and the other images, shifts the other images by the amount of the dominate translation and then generates a pixel-to-pixel correspondence to generate a displacement field. From the dominate translation and the displacement field, the system generates the values for the translational and rotational components.
Abstract:
A pattern recognition method of dynamic time warping of two sequences of feature sets onto each other is provided. The method includes the steps of creating a rectangular graph having the two sequences on its two axes, defining a swath of width r, where r is an odd number, centered about a diagonal line connecting the beginning point at the bottom left of the rectangle to the endpoint at the top right of the rectangle and also defining r−1 lines within the swath. The lines defining the swath are parallel to the diagonal line. Each array element k of an r-sized array is associated with a separate array of the r lines within the swath and for each row of the rectangle, the dynamic time warping method recursively generates new path values for each array element k as a function of the previous value of the array element k and of at least one of the current values of the two neighboring array elements k−1 and k+1 of the array element k. The latter step of recursively generating new path values is repeated for all of the rows of the rectangle and the value of the middle array element is selected as the output value sought.
Abstract:
Methods and systems are provided for defining and creating an automatic file security policy and a semi-automatic method of managing file access control in organizations with multiple diverse access control models and multiple diverse file server protocols. The system monitors access to storage elements within the network. The recorded data traffic is analyzed to assess simultaneous data access groupings and user groupings, which reflect the actual organizational structure. The learned structure is then transformed into a dynamic file security policy, which is constantly adapted to organizational changes over time. The system provides a decision assistance interface for interactive management of the file access control and for tracking abnormal user behavior.
Abstract:
Methods and systems are provided for defining and creating an automatic file security policy and a semi-automatic method of managing file access control in organizations with multiple diverse access control models and multiple diverse file server protocols. The system monitors access to storage elements within the network. The recorded data traffic is analyzed to assess simultaneous data access groupings and user groupings, which reflect the actual organizational structure. The learned structure is then transformed into a dynamic file security policy, which is constantly adapted to organizational changes over time. The system provides a decision assistance interface for interactive management of the file access control and for tracking abnormal user behavior.
Abstract:
A handwritten pattern recognition system for recognizing an input pattern is provided. The system has a plurality of parameter determining units, each determining the value of a desired parameter for an input pattern to be recognized. The system also includes a pattern match determiner which produces match values for each parameter of the input pattern with its corresponding parameter of each reference parameter. The match determiner also produces an overall match value for each reference pattern. A pattern classifier selects the reference pattern whose parameter set is "closest", by some matching criterion, to that of the input pattern.