Vision coprocessing
We claim: 1. In a rank value filter apparatus of the type having input means for inputting a plurality of candidate digital words, each said candidate digital word comprising a plurality of bits, and ... Read More
Inventors: Wolff, Robert Anthony; Rosenthal, Steven Mark; Silver, William Michael; Schott, Jean-Pierre;, Assignee: Cognex Corporation (Natick, MA) |
Method and apparatus for locating, inspecting, and placing large leaded devices
The invention provides a method and apparatus for locating, inspecting and placing large leaded devices. In a preferred embodiment of the invention, the leads are found in sets by estimating the appro... Read More
Inventors: Cullen, Christopher P.; Engel, Antonie J.;, Assignee: Cognex Corporation (Natick, MA) |
Single step coarse registration and inspection of circular objects
The present invention provides a very fast, memory-efficient, single-step solution for coarse alignment with determination of object angular displacement, and inspection for surface defects on circula... Read More
Inventors: Schott, Jean-Pierre;, Assignee: Cognex Corporation (Natick, MA) |
Multiple field of view calibration plate having a reqular array of features for use in semiconductor manufacturing
An article of manufacture is provided for use in a multi-camera machine vision system wherein each of a plurality of cameras simultaneously acquires an image of a different portion of a semiconductor ... Read More
Inventors: Michael, David; Wallack, Aaron;, Assignee: Cognex Corporation (Natick, MA) |
Interpolation method and apparatus for fast image magnification
According to the present invention, methods and apparatus for generating pixel values in a magnified destination image of an object in a destination image space are provided. The pixel values in the d... Read More
Inventors: Naqvi, H. Shahzad; Huonder, Russell J.;, Assignee: Hewlett Packard Company (Palo Alto, CA) |
Mark quality inspection apparatus and method
The foregoing objects are attained by the invention which provides, in one aspect, an improved mark inspection apparatus. The apparatus includes a video camera that generates a digital image of a mark... Read More
Inventors: Petry, III, John P.; Picard, Len L.;, Assignee: Cognex Corporation (Natick, MA) |
Fuzzy method and device for the recognition of geometric shapes in images
Accordingly, an aim of the present invention is to provide a fuzzy method and device for the recognition of geometric shapes in images that gives greater robustness to the standard Hough transform. Wi... Read More
Inventors: Mancuso, Massimo; Moretti, Paolo; Poluzzi, Rinaldo; Rizzotto, Gianguido;, Assignee: SGS-Thomson Microelectronics S.r.l. (Agrate Brianza, IT) |
Depth from focal gradient analysis using object texture removal by albedo normalization
The method and apparatus of the invention substantially remove the effects of object reflectance from an image acquired using structured illumination, so that only the structured illumination pattern ... Read More
Inventors: Sussman, Michael;, Assignee: Cognex Corporation (Natick, MA) |
Labeled projection of digital images
The invention comprises a method and apparatus for measuring the size and position of bonds 09 made by wire bonding machines in the semiconductor assembly process. The invention calculates measurement... Read More
Inventors: Koljonen, Juha; Michael, David J.;, Assignee: Cognex Corporation (Natick, MA) |
Depth-from-defocus optical apparatus with invariance to surface reflectance properties
A depth-from-defocus optical apparatus is provided for use with a depth-from-defocus three-dimensional imaging system for obtaining a depth image of an object. The optical apparatus of the invention g... Read More
Inventors: Sissom, Bradley; Sussman, Michael;, Assignee: Cognex Corporation (Natick, MA) |
Vision system for analyzing solid-of-revolution radius profile
The invention provides a machine vision method for estimating both a longitudinal position and a radius of a circular cross-section of a solid of revolution. The method includes the steps of acquiring... Read More
Inventors: Jacobson, Lowell D.;, Assignee: Cognex Corporation (Natick, MA) |
Semiconductor device image inspection utilizing image subtraction and threshold imaging
The foregoing objects are among those achieved by the invention which provides, in one aspect, a machine vision method for inspecting the surfaces of semiconductor dies. The method includes the steps ... Read More
Inventors: Nichani, Sanjay; Scola, Joseph;, Assignee: |
System and method of performing tomographic reconstruction and volume rendering using texture mapping
OF THE PREFERRED EMBODIMENTS I. Nomenclature and Definitions The preferred embodiment of the invention is discussed in detail below. While specific steps, configurations and arrangements are discusse... Read More
Inventors: Cabral, Brian K.; Foran, James;, Assignee: Silicon Graphics, Inc. (Mountain View, CA) |
Method and apparatus for inspecting a workpiece
What is claimed is: 1. A system for the inspection of a workpiece, the system comprising in combination: a camera held in a position facing the workpiece; a ring light positioned to shine on the workp... Read More
Inventors: Roy, Rajiv; Zemek, Michael C.; Wahawisan, Weerakiat;, Assignee: Semiconductor Technologies & Instruments, Inc. (Plano, TX) |
Split optics arrangement for vision inspection/sorter module
What is claimed is: 1. In a method of determining lead integrity of IC devices having leads, comprising the steps of: providing illumination of the leads; producing a back lit outline of at least one ... Read More
Inventors: Linker, Jr., Frank V.;, Assignee: American Tech Manufacturing, Inc. (Glenolden, PA) |
Pattern recognizing apparatus and method
The present invention aims at providing a pattern recognizing apparatus and method capable of appropriately recognizing a character with high precision depending on the environment of the character. A... Read More
Inventors: Naoi, Satoshi; Suwa, Misako;, Assignee: Fujitsu Limited (Kawasaki, JP) |
Image data processing apparatus and image data processing method
An object of the present invention is therefore to provide an image data processing apparatus and method for efficiently and accurately extracting texture features from images. A further object of the... Read More
Inventors: Murakawa, Akira;, Assignee: Minolta Co., Ltd. (Osaka, JP) |
Device and method to detect dislocation of object image data
OF THE INVENTION FIG. 1 shows a first preferred embodiment of a device to record data representing a model according to this invention. When the device of this embodiment records data representing a ... Read More
Inventors: Matsutake, Osamu; Iida, Junko;, Assignee: Omron Corporation (Kyoto, JP) |
Image processing apparatus
According to the present invention, there is provided an apparatus or method in which images of a moving object are processed to define a planar representation of the object in a three-dimensional com... Read More
Inventors: Rowe, Simon Michael;, Assignee: Canon Kabushiki Kaisha (Tokyo, JP) |
Coding apparatus and method of same and decoding apparatus and method of same
An object of the present invention is to provide a coding apparatus and a decoding apparatus having a plurality of processing apparatuses, capable of carrying out encoding and decoding of for example ... Read More
Inventors: Iwata, Eiji;, Assignee: Sony Corporation (Tokyo, JP) |
Method and apparatus for a digital video cassette (DVC) decode system
OF THE INVENTION The invention will be described with respect to the Figures in which FIG. 1 generally shows a computer system 10. The computer system 10 includes a display 20, an enclosure 30, a key... Read More
Inventors: Washington, Richard Gene;, Assignee: Apple Computer, Inc. (Cupertino, CA) |
Arrangement for transforming picture data
What is claimed is: 1. An arrangement for transforming picture data while using a method of two-dimensional hierarchic sub-band segmentation, particularly a two-dimensional Discrete Wavelet Transforma... Read More
Inventors: Hoppe, Dirk; Gotting, Detlef;, Assignee: Koninklijke Philips Electronics N.V. (Eindhoven, NL) |
System for determining the position of movable machine parts
We claim: 1. System for determining the position of movable machine parts, including an incremental pulse generator for generating two concurrent trains of angular-speed pulses shifted 90.degree. out ... Read More
Inventors: Hauck, Dieter; May, Karl-Heniz; Muller, Hans; Rehberger, Jurgen;, Assignee: Heidelberger Druckmaschinen AG (Heidelberg, DE) |
Method for identifying certification identifying media
This invention was conceived to eliminate the inconveniences encountered in the prior art and aims at providing an identification data recording method on a certification identifying medium which can ... Read More
Inventors: Tomiyama, Hiroshi; Naito, Seishi;, Assignee: Glory Kogyo Kabushiki Kaisha (Hyogo, JP) |
Continuous two dimensional monitoring of thin webs of textile materials
In accordance with the present invention, on-line monitoring is provided for controlling the quality of card web. Undesirable entities are Found in preferably 100% of the thin card web, Identified as ... Read More
Inventors: Shofner, Frederick M.; Baldwin, Joseph C.;, Assignee: Zellweger Uster, Inc. (Knoxville, TN) |
Data management method and system thereof
The present invention has as its object to resolve the above problem and provide a method and system enabling a data center to manage the data etc. transferred to a user terminal. The present inventio... Read More
Inventors: Kawashima, Isao;, Assignee: Sony Corporation (Tokyo, JP) |
Printing method and copy-evident secure document
We claim: 1. A copy evident document which when copied results in a copy with a readily visually perceptible warning indicia that the copy is not an original document comprised of: a document substrat... Read More
Inventors: Volpe, John R.;, Assignee: Francois-Charles Oberthur Group (Paris, FR) |
Non-perpendicular, equal frequency non-conventional screen patterns for electronic halftone generation
The invention describes non-conventional screen systems provided by a method of general halftone generation using an algorithm which is capable of generating conventional halftone screen patterns as w... Read More
Inventors: Rylander, Richard L.;, Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN) |
Card issuing machine and a method for controlling the same
It is therefore one object of the present invention to provide a document verification apparatus that requires comparatively small space and to provide a method for operating such an apparatus. It is ... Read More
Inventors: Matsumoto, Takeshi;, Assignee: International Business Machines Corporation (Armonk, NY) |
Image binarization apparatus
Accordingly, an object of the present invention is to provide an image binarization apparatus which binary-encodes an image whose portions have different features, without adversely affecting the imag... Read More
Inventors: Kanno, Hiroki; Yoneda, Hitoshi; Machida, Hironobu;, Assignee: Kabushiki Kaisha Toshiba (Kawasaki, JP) |
Image Analysis 
