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5940535 |
Method and apparatus for designing a highly reliable pattern recognition system
A design for a high reliability recognition system utilizes two optimized thresholds for each class k of a prototype data base. One threshold is a class region threshold CR k and the other is a...
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5940139 |
Background extraction in a video picture
A novel video object extraction has a first object 12, such as a foreground object, illuminated with visible light 16 and a second object 14, such as a background object, illuminated with a...
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5937084 |
Knowledge-based document analysis system
A knowledge-based document analysis system and method for identifying and decomposing constrained and unconstrained images of documents is disclosed. Low level features are extracted within bitonal...
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5937103 |
Method and apparatus for alias free measurement of optical transfer function
Measurement of the optical transfer function of an optical system imaging a bar pattern. A one dimensional fast Fourier transform processes sampled image data from the bar pattern. A model of the...
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5915038 |
Using index keys extracted from JPEG-compressed images for image retrieval
Index keys from JPEG encoded still images are extracted based on the gray-scale, luminance, and/or chrominance values. The index keys are stored in a database, along with corresponding location,...
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5909508 |
Parallel image-clustering apparatus
In an image clustering apparatus for classifying an image into plural clusters, modification of cluster parameter is executed by parallel processing as well as parallel processing of comparison of...
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5909510 |
Method and apparatus for document classification from degraded images
A word shape token-based document classification system prepares a plurality of sets of training data degraded by image quality and selects the optimum training data set by examining scores from a...
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5907631 |
Document image processing method and system having function of determining body text region reading order
An extracting step extracts text regions from an input document image. A classifying step classifies the text regions into in-order reading regions to be successively read in the predetermined...
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5878164 |
Interleaved segmental method for handwriting recognition
A method of handwriting recognition is provided that combines the efficiency of a point oriented system and the shape information of a segment oriented system in an HMM based handwriting...
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5878160 |
Flow type particle image analyzing method and apparatus for displaying particle images by classifying them based on their configurational features
A flow type particle image analytical method for feeding a particles-suspended sample by surrounding it by a cleaning solution, imaging particles in the sample by irradiating light to it, and...
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5872859 |
Training/optimization of computer aided detection schemes based on measures of overall image quality
A computerized method of detecting regions of interest in a digital image optimizes and adapts a computer aided scheme for detecting regions of interest in images. The optimization is based on...
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5872865 |
Method and system for automatic classification of video images
A computer system and computer implemented method automatically classify video sequences into categories. A set of categories is defined either manually through the association of selected video...
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5867597 |
High-speed retrieval by example
An improved document management system with high-speed retrieval by example retrieves a document attaching a target document, in whole or part, by comparing descriptors of documents. A descriptor...
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5867605 |
Filtering method and corresponding filtering system
This relates to a filtering method for processing an image sequence, including for each image parallel binarizations of the gray levels, provided to define a tree structure made of a father node (c...
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5842194 |
Method of recognizing images of faces or general images using fuzzy combination of multiple resolutions
A system comprising a neural network, or computer, implementing a feature detection and a statistical procedure, together with fuzzy logic for solving the problem of recognition of faces or other...
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5835633 |
Concurrent two-stage multi-network optical character recognition system
A multi-stage multi-network character recognition system decomposes the estimation of a posteriori probabilities into coarse-to-fine stages. Classification is then based on the estimated a...
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5832118 |
Texture classification apparatus employing coarsensess and directivity of patterns
An apparatus for classifying a textured image based on pattern coarseness and directivity comprises: a quantizer for obtaining a quantized image from the textured image, the quantized image...
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5828776 |
Apparatus for identification and integration of multiple cell patterns
A biological specimen classification strategy employs identification and integration of multiple cell patterns. An automated microscope acquires an image of a biological specimen such as a Pap...
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5825907 |
Neural network system for classifying fingerprints
A system for automatically classification of human fingerprints. An unidentified fingerprint is processed to produce a direction map. The direction map is processed to generate a course direction...
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5822447 |
Method of analyzing particles in a sample and displaying same
A method and an apparatus for analyzing particles in a fluid sample is accomplished by distributing the sample over an extended area. A plurality of optical still images is taken of the sample,...
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5809175 |
Apparatus for effecting A/D conversation on image signal
An apparatus for coding an input analog video signal to a digital code. The apparatus comprises an A/D converter for converting the input analog video signal to a first quantization code having a...
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5805745 |
Method for locating a subject's lips in a facial image
An embodiment of the present invention locates facial features in an image by bandpass filtering the image and then performing morphological operations followed by a thresholding operation. This...
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5805719 |
Tokenless identification of individuals
A tokenless identification system and method for authorization of transactions and transmissions. The tokenless system and method are principally based on a correlative comparison of a unique...
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5802208 |
Face recognition using DCT-based feature vectors
A method and apparatus for recognition of objects such as faces in images using signal compression techniques (i.e., coding techniques) in which a portion of the image which includes the object to...
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5802207 |
System and process for constructing optimized prototypes for pattern recognition using competitive classification learning
A system and process for performing character recognition is disclosed wherein inputted characters are compared to prototypes maintained in a predetermined database of the system to determine the...
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5802204 |
Handwritten character translator using fuzzy logic
An arrangement (apparatus and method) for translating pixel images representing characters or symbols into characters using fuzzy logic processing. The disclosed character translator uses...
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5802199 |
Use sensitive identification system
The system includes a master computer having a master computer comparator. The master computer comparator further having a master user biometric database which contains or stores the biometric...
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5797130 |
Method for testing proficiency in screening images of biological slides
An automatic screening apparatus that screens all pap smear slides called normal by cytotechnologist. These normal pap smears will contain the mistakes, false negatives, which must be recovered as...
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5787189 |
Biological analysis system self calibration apparatus
Reference information for a biological slide is obtained. The reference information normalizes the measured object features. Calibrated feature measurement, not based on absolute measurements, self...
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5787201 |
High order fractal feature extraction for classification of objects in images
A method of identifying and classifying pre-detected target candidates in an image using pixel intensity and a fractalization process applied to the image. A raw analog image is digitized and...
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5767978 |
Image segmentation system
An adaptable image segmentation system for differentially rendering black and white and/or color images using a plurality of imaging techniques. An image is segmented according to classes of...
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5754312 |
Method of and apparatus for detecting pixels constituting dotted image area utilizing distance between change points of pixel values
Disclosed is an apparatus for detecting pixels in a dotted image area (dotted area pixels). Image data corresponding to each of the pixels is coded into one of a predetermined number of discrete...
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5754693 |
Method of optical recognition and classification of patterns
The present invention is directed to a method for recognizing and classifying one or more unknown patterns, such as letters or numerals, by comparing these unknown patterns to a set of reference...
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5754681 |
Signal pattern recognition apparatus comprising parameter training controller for training feature conversion parameters and discriminant functions
In a signal pattern recognition apparatus, a plurality of feature transformation sections respectively transform an inputted signal pattern into vectors in a plurality of feature spaces...
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5751855 |
Method and apparatus for detecting whether an electronic image has been faxed
A method of recognizing the effects of coarse pixel quantization on text represented via raster signals to enable automatic selection between fax and normal modes of optical character recognition....
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5689584 |
Method of and apparatus for pattern recognition and method of creating pattern recognition dictionary
A method of pattern recognition, including the steps of: (a) creating N subregions by dividing a recognition region of an input pattern into N blocks and assigning corresponding subregion numbers...
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5671293 |
Pattern recognizing method and apparatus
A pattern recognizing apparatus comprises a feature vector extractor to extract a feature vector of an input pattern; a converting unit to convert the feature vector extracted by the feature vector...
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5647022 |
Method and apparatus for symbol recognition using multidimensional preprocessing and symbol sorting
Data samples describing a plurality of micro-segments that compose a symbol to be recognized are received from a device such as an electronic pad. A preprocessor maps the micro-segments into cells...
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5644386 |
Visual recognition system for LADAR sensors
A visual recognition system is disclosed for detecting a target within a scene. A LADAR system and method is employed for scanning laser light signals across a scene having a target to be...
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5642435 |
Structured document processing with lexical classes as context
Patterns of intelligence detected in a digital image representation are correlated with pattern classes according to a predetermined set of rules for improved pattern identification. Identified...
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5615286 |
Method for determining a most likely sequence of states
The number of calculations to determine the most likely path is reduced by eliminating a number of paths that are impossible to provide an optimal result. How to eliminate these non-optimal paths,...
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5610998 |
Apparatus for effecting A/D conversion on image signal
An apparatus for coding an input analog video signal to a digital code. The apparatus comprises an A/D converter for converting the input analog video signal to a first quantization code having a...
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5602938 |
Method of generating dictionary for pattern recognition and pattern recognition method using the same
A reference pattern vector is obtained from training patterns belonging to each class and is held as a parameter of an original distance function in a distance dictionary. A discriminant function...
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5600736 |
Image pattern identification/recognition method
The present invention provides an image pattern identification/recognition method which enables the reduction of the work load of the user required in the case of incorrect character recognition,...
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5581634 |
Recognition system with an automated development tool
A recognition system that includes a development subsystem and production subsystem is disclosed. The development subsystem includes a user interface that enables a developer to describe the...
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5581628 |
Characters reading apparatus having collating means of envelope
A character reading apparatus including functions for storing size information of an object to be read, an inherent image included in the object, and position information about a read area of the...
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5574799 |
Method and system for automated detection of microcalcification clusters in mammograms
The invention is a novel method for automated detection of objects in images. One specific use is to detect malignant microcalcification clusters in mammograms. The method operates by forming a...
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5572604 |
Method for pattern recognition using prototype transformations and hierarchical filtering
Articles being graphical input patterns are sorted by a pattern-recognition machine that includes a data base of prototype patterns, each labeled with its respective class. The sorting method...
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5561718 |
Classifying faces
A face classification system which receives video data representative of a scene and extracts therefrom data representative of a face which is present in the scene. The facial video data is applied...
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5559899 |
Method for the adaptive quantization of a range of input values
A method for the adaptive quantization of the range of input values on the basis of the histogram method for estimating density. Input values are read-in and assigned to a quantization of the range...
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