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4965841 |
Luminance cumulative integrating method and apparatus in image processes
A luminance cumulative integrating method in image processes comprises the steps of: storing the positions of all of the unit regions constituting at least one block region to be detected as...
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4933865 |
Apparatus for recognition of drawn shapes or view types for automatic drawing input in CAD system
An apparatus for recognition of shapes in drawings for automatic drawing input in a CAD system including a centerline extraction unit for extracting centerlines drawn in center positions of shapes...
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4920572 |
Object recognition system for a robot
A method and a system for recognizing the location of a cylindrical shaft is provided for use in positioning an end effector of an industrial robot which handles said shaft. In the method and...
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4910787 |
Discriminator between handwritten and machine-printed characters
A video image of a region including characters recorded on a document is converted into electric signals. From the electric signals unit signals corresponding to subregions obtained by dividing the...
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4907156 |
Method and system for enhancement and detection of abnormal anatomic regions in a digital image
A method and system for detecting and displaying abnormal anatomic regions existing in a digital X-ray image, wherein a single projection digital X-ray image is processed to obtain signal-enhanced...
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4905296 |
System for shape recognition
A system for shape recognition includes a spatial convolution filter which has an approximately band pass response. The filter is applied to a camera image and the sign of the filter's output is...
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4891750 |
Optical character recognition by forming and detecting matrices of geo features
An alphanumeric character is recognized by optically scanning that character, detecting the occurrence of predetermined geographical features in the scanned image, comparing the detected...
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4887303 |
Character reading method
The identity of an unknown character is determined by comparing matrices representing the unknown character with matrices representing known dictionary characters and determining the deviation...
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4876728 |
Vision system for distinguishing touching parts
A practical vision system for controlling the positioning of a robot arm recognizes and locates objects. The vision system processes binary images, but recognizes objects based on boundary features...
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4864628 |
Method of optical character recognition
A method for recognizing and providing an output corresponding to a character is disclosed. The character is received by an imager, digitized and transmitted to a buffer memory. Data in the buffer...
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4845610 |
Target recognition using string-to-string matching
A method for determining whether a perceived target is acceptably close to a model target. The perceived target is first segmented using a relaxation based procedure. Structural features from the...
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4845765 |
Process for the automatic recognition of objects liable to overlap
The invention relates to a process for the recognition of objects liable to overlap, on the basis of reference images of said objects and the image of the group of said objects. The process...
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4843568 |
Real time perception of and response to the actions of an unencumbered participant/user
Apparatus and method for using an image of the human body to control real time computer events wherein data regarding a participant are acquired through any means of imaging without marking the...
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4817024 |
Spectacle-frame shape data producing method
A spectacle-frame shape data producing method in which a spline interpolation function is used to digitize the shape M of a spectacle frame to provide spectacle-frame shape data, and the shape M of...
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4791482 |
Object locating system
The invention projects a known geometry light source onto the surface of an object. A camera with a known distance and angular orientation with respect to the light source is used to capture the...
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4790023 |
Method for measuring dimensions of fine pattern
A method for measuring the dimensions of a fine pattern, comprises first measuring a surface area and determining a profile of a displayed pattern image, second, calculating the center of gravity...
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4790027 |
Method for automatic separating useful and noise information in microscopic images particularly microscopic images of wafer surfaces
A method for the automatic separating useful and noise information in microscopic images, particularly, microscopic images of wafer surfaces, for example, upon which printed circuits are formed for...
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4783829 |
Pattern recognition apparatus
A pattern recognition apparatus for recognizing a pattern derived from image data of an outline of an object region is disclosed. The apparatus comprises means for identifying the object region...
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4771469 |
Means and method of representing an object shape by hierarchical boundary decomposition
Information on the shape of an object is extracted by generating an image of the object, encoding and ordering the boundary points of the image, selecting points on the outermost portions of the...
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4769850 |
Pattern recognition system
The present invention relates to apparatus for separately extracting circular and linear components in a complex image, the apparatus comprising: (a) a circular filter means for covering a portion...
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4747153 |
Device and method for pattern recognition
A method of and apparatus for recognizing the figure pattern of parts used in factories is disclosed in which a pattern input device, such as an ITV camera creates an electrical image of the part...
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4720869 |
Hand dimension verification
Improved method and apparatus are provided for hand dimension verification. A two dimensional scanner provides image data from top and angled scans to an image processor which processes this data...
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4712248 |
Method and apparatus for object identification
An object identification method and apparatus determines within the boundary of an object to be identified points corresponding to abrupt changes in the profile of the object. Each segment of the...
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4703512 |
Pattern outline tracking method and apparatus
A pattern outline tracking system provides the functions that include scanning an object to be recognized and providing a series of analog video signals, comparing a video signal level with the...
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4687942 |
Method of reading concavo-convex bar code
In a method of reading a concavo-convex bar code disposed on the surface of an article, the improvement comprising the steps of scanning the concavo-convex bar code by a displacement sensor to...
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4685141 |
Method and system for finding image data associated with the monetary amount on financial documents
A system and method for locating intelligence data like the courtesy or monetary amount on a document. The intelligence data is presented in the form of a matrix of binary data which corresponds to...
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4685143 |
Method and apparatus for detecting edge spectral features
Edge maps (40) derived from images are used to compute edge spectra (44), an edge spectrum having a plurality of components (41, 43) corresponding to the angular bins (60) of edge vectors having...
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4653108 |
Electrical circuit for a microprocessor graphic system
An electrical circuit for the graphic processing of resulting contours of several polygonal superposed images stored in memory. Such images, commonly used for numeric machine tool controls,...
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4649498 |
Computer systems for curve-solid classification and solid modeling
A computer system is introduced for curve-solid classification (raycasting) of objects in constructive solid geometry (CSG) modeling to produce image representations of two- or three-dimensional...
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4644583 |
Method of identifying contour lines
A contour line of a circle or an object having a configuration close to a circle or a portion thereof is identified by presuming picture image data representing a contour candidate point of the...
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4628532 |
Alphanumeric handprint recognition
The recognition of patterns is accomplished through boundary tracing and subsequent storage of encoded range testable data commensurate with the occurrence, interrelationship and orientation of...
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4624367 |
Method and apparatus for determining conformity of a predetermined shape related characteristics of an object or stream of objects by shape analysis
In its simplest sense, the present invnetion contemplates a method and apparatus for determining a characteristic or property of randomly oriented, irregularly shaped objects by obtaining an image...
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4618989 |
Method and system for detecting elliptical objects
In order to define the contour of an ellipse, it is necessary to determine five unknown parameters in the general equation representative of centered conics. When directly applying Hough...
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4603431 |
Method and apparatus for vectorizing documents and symbol recognition
An apparatus codes a scanned document locally representing each graphic element within a prescribed measure of accuracy by a trapezoidal approximation. The invention also includes a method for...
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4589139 |
Apparatus for detecting defects in pattern
An apparatus for inspecting a pattern consisting of light and dark areas formed on a planar test specimen according to design information, comprising: an imaging device for viewing the pattern to...
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4561106 |
Character recognition process and apparatus
Disclosed herein is a character recognition process which extracts white regions surrounded by strokes of character pattern information and recognizes characters by determining the directions in...
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4555800 |
Combustion state diagnostic method
A method of diagnosing a combustion state in a furnace of a boiler wherein the shape of the root part of a flame (namely, the part closer to the fuel jet port of a burner) is picked up by an image...
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4547895 |
Pattern inspection system
A pattern inspection system for inspecting a pattern formed on a base, such as a photomask, by means of laser beam scanning which includes a device for detecting the body and edges of the pattern,...
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4493105 |
Method and apparatus for visual image processing
Method and apparatus is disclosed for automatically processing visual images electronically so as to permit intelligent machine analysis of the image content. A special distributed logic system...
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4490848 |
Method and apparatus for sorting corner points in a visual image processing system
Method and apparatus is disclosed for automatically processing visual images electronically so as to permit intelligent machine analysis of the image content. A special distributed logic system...
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4461029 |
Automatic handwritten and typewritten character-reading device
This disclosure concerns a system for automatically reading handwritten and typewritten characters. First, a 64×64 point image is made of each character. Then the size and any overlapping with an...
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4442542 |
Preprocessing circuitry apparatus for digital data
An apparatus for analyzing line sequential binary data generated by scanning a printed circuit board with a scanning laser apparatus is disclosed. The circuit board contains conducting strips on an...
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4404684 |
Object solid figure recognizing method and apparatus
An apparatus and method for recognizing the shape of solid objects in which an object to be recognized is passed through a cylindrical rotary unit upon a transparent conveyor. Inside the...
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4361830 |
Device for displaying feature of contour image
The x-y coordinates are determined of a multiplicity of points set at very small intervals of a fixed value on a contour line, the coordinates of a selected number of points on either side of one...
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4288852 |
Method and apparatus for automatically determining sheet metal strain
Disclosed is a method and apparatus for automatic measurement of strain in a formed sheet metal sample. Prior to the forming operation, a grid of circles is imprinted on the sample and during the...
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4242734 |
Image corner detector using Haar coefficients
A machine for detecting image corners in two-dimensional images. The machine transforms two-dimensional images by means of the Haar transform into the two-dimensional Haar transform domain. Certain...
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4193056 |
OCR for reading a constraint free hand-written character or the like
A character pattern to be recognized is divided into a predetermined number of parallel segments of equal width extending in one direction and character information on respective ones of the...
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4183013 |
System for extracting shape features from an image
A system for sequentially processing an image in order to identify objects in the image, and extract a variety of shape features of the identified objects. The system includes an image...
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4177448 |
Character recognition system and method multi-bit curve vector processing
An automatic character recognition system and method for identifying an unknown character which is one of a class of known characters. The system is set up using known specimen characters from a...
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4115761 |
Method and device for recognizing a specific pattern
This method for recognizing a specific pattern is characterized in a process of extracting feature parts wherein one or more certain feature parts of specific shape are extracted from an input...
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