Matches 101 - 150 out of 183 < 1 2 3 4 >
Match Document Document Title
5832115 Ternary image templates for improved semantic compression  
A method and apparatus for carrying out rapid, block-based SAD search operations for facial ellipses in a CIF videophone image frame are disclosed. A set of search templates, each having an ellipse...
5828790 Method and apparatus for approximating a contour image of an object in a video signal  
A method for approximating a contour of an object expressed in a digital video signal divides the contour into a multiplicity of primary contour segments and approximates each primary contour...
5774596 Adaptive contour coding method for encoding a contour image in a video signal  
A contour coding method adaptively encodes a contour image in a video frame based on the size and complexity of the contour image in order to improve the quality of a reconstructed contour image....
5774595 Contour approximation method for representing a contour of an object  
A contour approximation method accurately reconstructs a contour of an object by adding an extra vertex to the complex contour segment based on a curvature of the pixels on the contour image. The...
5764808 Method and device for compact representation of a discrete region contour  
A method (900, 1000) and device (100, 600) are provided for encoding and/or decoding a compact representation of a discrete region contour for the purposes of image and video compression. The...
5757382 Apparatus for tracing contours of segmented regions  
An apparatus for tracing contours of segmented regions in an image includes a zero masking unit to produce a closed contour loop for each of the segmented regions, a tracing circuit for...
5754703 Method for encoding a contour of an object in a video signal  
A set of first errors selected from sets of errors indexed as, e.g., sets of first to Kth errors between contour segments and corresponding line segments at a predetermined number of sample points...
5737449 Apparatus for encoding a contour of regions contained in a video signal  
An apparatus for encoding a contour of regions contained in a video signal comprises first and second segmentation blocks for segmenting previous and current frame into a number of regions to...
5736987 Compression of graphic data normals  
Geometric data for a three-dimensional surface are compressed in regard to the data representing the continuity between triangles in a mesh that represents the three-dimensional surface. The...
5710838 Apparatus for encoding a video signal by using modified block truncation and contour coding methods  
An apparatus for encoding a input video signal having a plurality of video frames each of which may be divided into a multiplicity of non-overlapping blocks of K×K pixels by using a modified BTC...
5691769 Apparatus for encoding a contour of an object  
A contour encoding apparatus determines vertex points on the previous contour of the previous frame based on a polygonal approximation. A set of first approximation errors is calculated at a...
5675669 Apparatus for encoding/decoding an image signal having a still object  
An encoding system effectively reduces the substantial amount of data for transmission by way of employing three encoding channels which perform a compression process for individually extracting...
5671295 Apparatus for converting image outline data into dot data representative of dots to be formed  
An outline font data is converted into dot data, based on which a dot image is printed. When an image represented by the outline font data has a very narrow portion or very steep end portion,...
5668894 Method for processing three-dimensional shape data  
A method for processing three-dimensional shape data includes steps of obtaining a plurality of point data along a surface of an object having a three-dimensional shape; taking out a point data...
5666212 Method of coding image segments of any shape  
A method of coding digital image data of an original image for transmission and reproduction. The original image is subdivided into partial image regions whose shapes are adapted to local image...
5647024 Multi dimensional image compression and decompression method using feature points on a luminance contour line  
A method of compressing and decompressing a multi-dimensional image. Video data including luminance data distributed at least in two-dimensions is compressed for subsequent coding. The resulting...
5633685 Method and apparatus for encoding an image signal having an object by using an extension-interpolation technique  
A processing block is processed by using an extension-interpolation ("E-I") method, wherein the processing block consisting of N×N pixels which are classified into object pixels and background...
5623555 Method and apparatus for handwriting decompression using estimated timing information  
A method and apparatus for generating a reconstructed image from a compressed image. An exemplary method in accordance with the present invention includes the steps of identifying pairs of...
5600772 Bit map character convertor using chain-codes for the character filling process  
A data converting apparatus and process for converting outline representations of a character into its bit mapped form using two buffers one being for the bit mapped form of the character symbol...
5598215 Moving image encoder and decoder using contour extraction  
A moving image transmission method encodes and decodes information to obtain a high transmission efficiency. The coding method calculates motion parameters of each segment of an image and segment...
5577134 Method and apparatus for encoding a segmented image without loss of information  
An image processing system encodes a segmented or mosaic image into a set of fixed-length data packets, from which the segmented image may be reproduced with no significant loss of detail. The...
5572605 Apparatus and method for inputting, compressing and outputting characters, illustrations, drawings and logomarks  
A method of compressing inputting two-dimensional object, compressing the two-dimensional data in a short time to a small amount of data and reproducing in any size at any position. This invention...
5537494 Video image data encoding and compression system using edge detection and luminance profile matching  
An image processing system which processes image data on a line by line basis. Edges in the images are detected as discontinuities in intensity. The intensity profile between detected edges is...
5524064 Device for coding still images  
A device for coding still images has a device for segmenting the images into homogeneous regions whereto a specific label is attached, and a device for coding the contents of the contour. The...
5481625 Handwritten character recognition device  
A handwritten character recognition device including: input unit for inputting handwriting thereon; stroke extracting unit for analyzing the handwriting in an X-axis and Y-axis direction, and...
5384905 Method for tracing a line image by monitoring the distance between two trace base points  
An image processor includes an image memory for storing image data; a data memory for storing graphic data; a display unit for displaying the image data and the graphic data; an input unit for...
5365599 Method and system of converting delineative pattern  
A pattern conversion method and apparatus including a storage unit for storing data representative of the contour of a pattern, a readout unit for reading the data from the storing unit; and a...
5353359 Methods for generating character pattern data and making image  
A method for generating character pattern data includes steps of providing contour information of a character having m 1 ×m 2 coordinate values in a coordinate space; and making and outputting...
5309521 Method and apparatus for generating a character curve by dividing and developing a bezier curve  
A control computer, an error calculator, a Bezier curve divider and an output device are provided for generating a character curve. Coordinates of end points and control points of a Bezier curve...
5304988 Character processing method  
A character processing apparatus for recognizing coordinate information expressing a character, an exterior outline, an interior outline, a horizontal line and a vertical line; classifying the...
5267332 Image recognition system  
An image recognition system includes a method and apparatus in which images are characterized and compared on the basis of internal structure, which is independent of image size and image...
5237624 Reproduction of image pattern data  
In a system for reproducing an image pattern data, a decision point designation means exclusively designates a decision point at the corresponding coordinate position in a coordinate region of...
5233671 Image coding method for coding characters using a modified Bezier curve  
An image coding method extracts a contour of a bi-level image, segments the contour into a plurality of segments by fitting a predetermined generation curve on each of the segments, where the...
5231676 Hierarchical operations on border attribute data for image regions  
A hierarchy of border attribute data items is produced from a body of data such as the pixel values of an image. Each border attribute data item indicates an attribute of a border of an analysis...
5228097 Method for registering image data  
A method for storing information defining a configuration in an image scans an image, and distinguishes a background density level from a density level of the configuration. For scan lines, start...
5222158 Pattern recognition apparatus  
A pattern recognition apparatus is capable of subjecting a large image region to image processing with an image memory having a small memory capacity and providing a contouring line data of an...
5220647 Image processing method  
A method for processing images is useful for generating a chain code representation of a configuration of pixels in an image. The method stores a pixel representation in first frame memory. For...
5202771 Image data compression system and facsimile machine employing the image data compression system  
An image data compression system detects from an input image data a transition edge of a picture element on a scanning line where the picture element undergoes a transition from white to black or...
5150431 Device for converting normal outline data into compressed outline data, or vice versa  
A data compressing device for preparing compressed outline data from normal outline data representative of an outline of a character which consists of a plurality of segments connected end to end...
5131058 Method for obtaining output-adjusted color separations  
A method of adjusting the contours of lineart shapes appearing in bitmap or halftone separations for variations in the mechanical characteristics of printing devices, the color of the separation,...
5105472 Graphic reproduction method  
A graphic reproduction method includes a first step for scanning a contour of a predetermined graphic that has been read from a storage source that stores contours of graphics, to detect a black...
5099521 Cell image processing method and apparatus therefor  
Cells are imaged, digitized and binarized pixel by pixel, after which cell identification codes for each of the cells in the image field are derived from information indicative of the edges of the...
5091976 Image coding method for extracting, segmenting, and coding image contours  
An image coding method extracts a contour of a bi-level image, segments the contour into a plurality of segments by fitting a predetermined generation curve on each of the segments, where the...
5081689 Apparatus and method for extracting edges and lines  
An apparatus and method for processing image data to derive edges and line segments. Image intensity data is processed in one dimension along a series of scan lines to produce an intensity curve...
5057939 Data compression  
A method of compressing digital image or image-like pixel data. The method comprises carrying out the following steps on small blocks of pixels: a) determining the differences between digital...
5042075 Document composition apparatus which changes an outline font in accordance with letter magnification  
An outline font formation which when a character is in a regularly-used size, forms a character pattern by approximation with short line segments using an outline font of a first representing mode....
5036544 Apparatus for discriminating linearity of line segment in image processing system  
An apparatus and method for discriminating the linearity of a line segment in an image processing system consisting of elements for extracting and tracking a train of points from a high contrast...
5007098 Vectorizing method  
A vectorizing method generates an original train of codes for specifying boundary pixels. A revised train of codes is generated solely from the original codes. The revised train may includes points...
4956869 Method of tracing contour and a system therefor  
A system for tracing contour to prepare contour coordinates by tracing contour lines of a figure from an image that consists of a set of a plurality of lines, comprising a memory stored in advance...
4956874 Method and apparatus for processing digitized images  
Apparatus for processing digitized images, the apparatus being of the type comprising a matrix memory (104) of pixels (106) organized as N lines (108) by P columns (110), together with processing...
Matches 101 - 150 out of 183 < 1 2 3 4 >