Matches 151 - 200 out of 311 < 1 2 3 4 5 6 7 >
Match Document Document Title
5987192 Method and apparatus for processing or resizing digital images, such as images of bar code symbols  
A method and apparatus for resizing or processing images initially retrieves a one-dimensional sample of the image, such as a line of pixels. The image can be of a machine-readable symbol, or other...
5982942 Image-quality measuring method  
Upon measuring the image-quality of an original document, the original document is photographed, and the resulting image is displayed on cells within a window so that image-quality data, such as...
5982946 Method of identifying defective pixels in digital images, and method of correcting the defective pixels, and apparatus and recording media therefor  
A method of identifying defective pixels included in a digital image. The method includes the steps of designating a pixel adjacent the defective pixels in the digital image, setting an evaluation...
5978512 Polygonal approximation method and apparatus for use in a contour encoding system  
An apparatus polygonally approximates a contour of an object expressed in a digital video signal. First of all, the apparatus determines a pair of vertices on the contour. Then, a line segment...
5974197 Loop filter and loop filtering method  
A loop filtering method and a loop filter therefor are provided. The loop filtering method includes the steps of: (a) generating a binary edge map by comparing a value obtained by operating each...
5966472 Method for automatic recognition of a concavity or convexity  
An automatic recognition method capable of accurately determining edges of a concavity or convexity in order to achieve an improved measuring accuracy in recognition of a concavity or convexity....
5949907 Window texture extraction for image analysis  
A window texture extraction process for quantifying texture features in grey-level images and combining the quantified texture features with previously derived classification results. The...
5949920 Reconfigurable convolver circuit  
A convolver includes a plurality of multipliers for multiplying pixel values of a convolution window by corresponding coefficients of a convolution mask to provide products, a summer for summing...
5940536 Ringing detector and filter  
The ringing detector of the invention receives data representing pixel values of a plurality of pixels including: a remarked pixel; a number L (where L is a natural number) of neighboring pixels...
5930378 Dynamic image processing apparatus and method  
In a dynamic image processing apparatus of the present invention, the focus of contraction of the optical flow of the background in the dynamic image is extracted. When a series of dynamic images...
5920649 Braille recognition system with ternary-coding  
Light is obliquely irradiated onto the surface of a document in braille, and its reflected light is received, to obtain a first gray image. The first gray image is subjected, while being scanned in...
5917951 Clustered aperiodic mask  
A technique combines most of the advantages of both blue noise and clustering in generating a clustered aperiodic mask and using it in a dither array algorithm for halftoning. The method of...
5915035 Method for extracting high-level features for fingerprint recognition  
A method to extract automatic high level features of a gray level ridge flow image including the automatic determination of the location of the high level features including the core and delta...
5892852 Image processing apparatus  
An image processing apparatus includes a converter for reading out a manuscript image signal and converting the read-out signal to an electric signal. A signal processor executes signal processing...
5881182 Adaptive process for removing streaks in digital images  
A method of removing columnar streaks from a digital image of the type in which it is assumed that pixels in a predetermined region near a given pixel are strongly related to each other and...
5870494 Method for determining orientation of contour line segment in local area and for determining straight line and corner  
A method for determining an orientation of a line segment in a contour in a local area of a binary contour image. The number of pixels having a predetermined value and located in each orientation...
5862266 Circuit for sharpening of edges of a pixel image in a color copier  
A circuit for sharpening a pixel image includes M accumulators which provide a rolling sum for each of a sequence of image pixel values. Each rolling sum comprises the sum of pixel values in the...
5852683 Method for automatic image merge  
A method for automatic merging two images having overlapped parts for a handy scanner. The method starts from defining a meaningful sample in a first image using fuzzy logic. Then, a two level...
5852678 Detection and rendering of text in tinted areas  
A method and apparatus improves digital reproduction of a compound document image containing half-tone tint regions and text and/or graphics embedded within the half-tone tint regions. The method...
5838820 Pattern recognition apparatus and method  
A pattern recognition device has a drawing area upon which a user may draw an image with a pen designed for that purpose. In a first option available to the user, a user-drawn image is analyzed and...
5838839 Image recognition method  
The present invention is intended to provide an image recognition method which, in recognizing an input image including an object presumable to have continuity like a human figure, enables...
5825923 Method for performing character recognition on a pixel matrix  
Pattern recognition, particularly character recognition, is effected by categorizing a cipher by a unique description using three feature sets identifying the type and location of lines which form...
5825938 System and method for enhancing the sharpness of a colour image  
A color image is locally discoloured in the vicinity of edges. The edges extend, for example, between a superposed foreground and a background in a computer-generated image, but also between...
5818964 Method and apparatus for selecting an adaptive filter for image data  
A device and method for filtering out the noise generated due to coding of image data signals. The device has a threshold determining unit, a binary index unit, a filter selecting unit, and an...
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...
5799108 Image decorative processing apparatus  
In an image processing apparatus, a matrix for an arbitrary pixel (to be an observed pixel) on the original image is set up so that the density of the observed pixel and that of a target pixel...
5790701 Character recognition apparatus using edge images  
A character recognition apparatus comprises a photoelectric conversion section that converts image information including the characters to be recognized into multi-valued image information...
5790692 Method and means of least squares designed filters for image segmentation in scanning cytometry  
In an image segmentation system that processes image objects by digital filtration, a digital filter is defined. The digital filter includes a neighborhood operator for processing intensity values...
5781667 Apparatus for high speed morphological processing  
A method for high speed morphological processing in a computerized image processing system starts by acquiring a binary image and selecting feature and height values corresponding to a desired...
5778107 Position recognition method  
A position recognition method wherein the photographic image of an object having a concavity or convexity defined therein is converted into specified feature space data; detection is performed to...
5754751 Software-based procedure and apparatus for enhancement of a gray level image  
A software/firmware based method for determining gray level values to be assigned to a binary pixel image initially creates a linked list of templates, each template associated with a gray level...
5745594 Apparatus for testing a bonding position of a bonding wire  
An imaging device for imaging an object is situated above the object. A downward-illumination device for emitting light to the object is situated as one unit with the imaging device. A...
5719967 Iimage processing apparatus  
An image processing apparatus capable of generating multivalue image data to be reproduced by a laser printer and the like as a hard copy having high visual quality. A first character/line drawing...
5708731 Pattern matching method with pixel vectors  
Each of a certain number of sequences of binary pixels chosen according to some prescribed rules from m×n matrix of pixcels is referred to vector v i . A standard character k is represented with...
5703963 Character recognition apparatus that subdivides a character into subregions to obtain feature vectors  
A character recognition apparatus is provided which, even when there occurs a local positional deviation of a character to be recognized, can stably recognize the character with high accuracy. For...
5682440 Method of extracting pixels constituting intensity changes in an image and method of identifying collection of intensity changes  
A method for extracting pixels constituting an intensity change formed of a collection of local intensity changes present in a gray image of an object based on a intensity data of each pixel...
5668895 Digital filter for image processing  
A digital filter for image processing which permits a reduction in the size of the circuit includes a plurality of bit shifters for multiplying each picture element data of a k×k matrix, each by a...
5647027 Method of image enhancement using convolution kernels  
Noisy images of graphical or pictorial records, such as hand-written postal addresses, are cleaned by a method of analyzing the shapes of pixel clusters. According to such method, a set of...
5642434 Method for shape detection using density correlation valves  
Each pixel of a density reference area of a reference image is assigned a predetermined coefficient value in accordance with whether the pixel is located within a peripheral boundary of a to be...
5579401 Feature grouping in moving bodies in an image  
Feature grouping of moving rigid bodies in an image is accomplished by processing a sequence of two-dimensional orthogonal projection of a three-dimensional scene containing a plurality of such...
5574800 Pattern defect inspection method and apparatus  
The pattern edge direction in reference image data of an object to be examined is detected, the reference image data is differentiated using a differential operator in a direction along the pattern...
5572603 Image processing method and device using such method  
An image processing device in which each pixel data of a gray-scale image, which data is obtained by scanning an original, is converted into a binary image-signal. The device comprises a matrix...
5570435 Segmentation of text styles  
A method and apparatus for differentiating and extracting handwritten annotations and machine printed text in an image. The method provides for the use of morphological operations, preferably at...
5561721 Method for enhancing binary-rendered graphics and text for multi-level printing  
A method of enhancing a digital image by comparing the value of a pixel in the digital image with neighboring pixels in an L-shaped pattern of pixels, and modifying the value of the pixel when it...
5559530 Image data processing apparatus  
An image data processing apparatus for generating a font with contour lines expressed with gradations comprises a font ROM for storing a binary font data. An output port is provided for reading a...
5490224 Feature extracting apparatus  
This invention provides a feature extracting circuit including a shift register section arranged to store an image for a predetermined number of lines, the image consisting of a predetermined...
5485532 Image processing device and method thereof  
The objective of this invention is to make it possible to generate a window automatically without requiring troublesome manual operations, and by using the window to make it possible to perform a...
5463701 System and method for pattern-matching with error control for image and video compression  
Disclosed is a system and a method for compressing digitized color video data by generating codes into a pattern of tables for regions in frames of the video data exhibiting certain patterns. An...
5452373 Image verification method  
A plurality of successive pixels of a template and corresponding pixels of an input image inputted into a general purpose image processing hardware. A summation of differences is calculated by the...
5430812 Fractal transform compression board  
Digital image data compression apparatus includes a controller circuit for receiving digital image data and for processing the image data into blocks. The controller circuit supplies processed...
Matches 151 - 200 out of 311 < 1 2 3 4 5 6 7 >