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| Number | Title | Issue Date |
| 4788599 | Image processing with image-slant control and/or image-size control An image processing apparatus reads an image of an original line by line and to inputs the read image signal line by line and stores the input image signal in a memory controller changes the read-out position of the image signal from the memory, for read-... | 11/29/1988 |
| 4783834 | System for creating transposed image data from a run end or run length representation of an image A system for formatting electronic binary image data, which may be in compressed raster form, into transposed or rotated raster form for storage or output, such as on a printing device, is disclosed wherein the image data is first assembled in a buffer in... | 11/08/1988 |
| 4759076 | Image rotating system by an arbitrary angle A system for rotating an image by an arbitrary angle which is effective in image processing techniques using terminal equipment such as a work station, and will not distort a rotated image even with an increasing rotation angle θ. Skew transformation is ... | 07/19/1988 |
| 4759075 | Method and apparatus for vectorizing documents and symbol recognition The invention in a preferred embodiment recognizes symbols by determining the center of mass and maximum extremity of a symbol candidate, and comparing it to a reference library after normalizing with respect to scale, orientation and center of mass.... | 07/19/1988 |
| 4736442 | System and method for orthogonal image transformation A system using a special memory matrix termed an "image prism". The image prism is row and column accessible and is connected to input and output of a conventional bitmap memory. Row select lines pass horizontally through the matrix, column select lines p... | 04/05/1988 |
| 4723297 | Method for automatic correction of character skew in the acquisition of a text original in the form of digital scan results A method for automatic skewed position correction in acquisition of a text original in the form of digital scan results to be used for further processing. Before their further processing, the scan results are subjected to a skewed position identification ... | 02/02/1988 |
| 4716544 | Variable dimension and variable orientation graphics bit-map computer memory A memory storage scheme permitting storage of characters in one of several orientations in response to selected applied addresses, including a plurality of random access memory (RAM) chips organized into RAM SETS, each set including NB devices ... | 12/29/1987 |
| 4712185 | Dot interpolation control system According to a dot interpolation control system for dot-interpolating a character pattern in a predetermined dot matrix form along at least the main scanning direction or the subscanning direction, there is provided a pair of registers for designating ini... | 12/08/1987 |
| 4691367 | Method and apparatus for omnidirectional reading of data bases A method and apparatus for omnidirectional reading of data fields is provided. Such data fields contain at least one data track containing contrasting printed indicia and a PIC pattern. The PIC pattern indicates the position and orientation of the data tr... | 09/01/1987 |
| 4680630 | Apparatus for processing digital video signals to produce a television image by line and field sequential scanning An arrangement for rotating television pictures comprises a frame store into which a rotated input picture is written under the control of a write address generator which is in turn controlled by a rotation control and timing generator. A video input sign... | 07/14/1987 |
| 4679155 | Method and system for processing image data in reproducing images The method and system of this invention is capable of obtaining image data which underwent a layout process such as coordinate rotation and shifting processes, a trimming process and so forth at first by scanning a specific number of scanning lines of eac... | 07/07/1987 |
| 4672680 | Raster image manipulator A raster image manipulator includes source and destination image data stores respectively 1024×1024 and 512×512 pixels in extent. A clock and counter are employed to increment in unit steps the destination store address at which image data from the sour... | 06/09/1987 |
| 4658428 | Image recognition template generation A method and system for generating additional template images containing an object of interest in a plurality of defined orientations from a single stored digitized pixel matrix template image frame is disclosed by which the object of interest may be tran... | 04/14/1987 |
| 4637057 | Rotation of digital images The image is divided into regions of a given number of pixels. The original image is scaled down by a given factor. Each region of pixels is then enlarged in order to overlap its neighboring region. The enlarged regions are then sequentially written down ... | 01/13/1987 |
| 4633507 | Apparatus for reading mark sheets Apparatus with optical detecting device for reading a mark sheet provided with plural mark rows, each of which includes a reference mark, a skew detection mark and mark writing regions. The apparatus reads the mark sheet by use of a predetermined nominal ... | 12/30/1986 |
| 4620288 | Data handling system for a pattern generator This data processing system for a pattern generator receives data specifying each quadrilateral element in a pattern to be generated by laser scanning or other technique. The scanning is accomplished by swaths. In the preprocessor, separate vectors are pr... | 10/28/1986 |
| 4618991 | Processing method for the rotation of an image A signal rotation processing method for transforming an original image expressed on two-dimensional orthogonal coordinates into an image rotated by an arbitrary angle of θ radians. In order to raise the transforming speed, the method includes a skew coor... | 10/21/1986 |
| 4611232 | Video processing system for picture rotation A rotation system includes an input buffer 14 allowing two lines of video information to be processed in interpolator 15 prior to receipt by a framestore 16. The desired rotational angle is selected by selector 17 and the angle information is used within ... | 09/09/1986 |
| 4558461 | Text line bounding system A text line bounding system for non-mechanically adjusting for skewed text in scanned text. The data from scanned page texts are divided into vertical swaths and all pixels at respective vertical levels within each swath are set black if any one pixel wit... | 12/10/1985 |
| 4553214 | Angle based stroke generator Stroke display apparatus generates symbols or characters on a display screen and permits dynamic rotation or translation of those characters without placing a computation burden on the host processor. The characters are represented as a series of connecte... | 11/12/1985 |
| 4533959 | Picture processing apparatus A picture processing apparatus comprising (1) a picture memory for storing a quantized picture of an original, which original includes skew detection marks, (2) a skew detector for detecting the skew of the quantized picture by the skew detection marks on... | 08/06/1985 |
| 4484347 | Method of image transformation in a display device In an image transformation method in an image display apparatus for displaying a digital image derived by transforming an original digital image, each of intensities of second picture elements including at least three points on the original digital image ... | 11/20/1984 |
| 4468688 | Controller for system for spatially transforming images A control system is coupled to control a system for spatially transforming images by separate transformation of each dimension of the image. The control system includes a control panel having a three-axis joystick and a set of keys providing function sele... | 08/28/1984 |
| 4437121 | Video picture processing apparatus and method A processing system for effecting angular displacement of at least part of a television picture. The picture is subdivided into picture areas each containing a plurality of picture points and a number of storage devices respectively receive information on... | 03/13/1984 |
| 4283765 | Graphics matrix multiplier A matrix multiplier is disclosed for rotating, scaling, shearing, and stretching, three-dimensional calligraphic images. This system has particular application to incremental vector generators. The transformations are performed in real time and at the dra... | 08/11/1981 |
| 4267573 | Image processing system An image processing system is described in which an image is converted into a plurality of image elements or cells which are arranged in a predetermined pattern. These cells are then simultaneously rearranged into a second predetermined pattern to provide... | 05/12/1981 |
| 4247944 | V.29 Constellation detection method and apparatus V.29 constellation detection method and apparatus including a quadrant transformer for Processing the quantized real and imaginary component signals corresponding to a particular transmitted signal from a known set of transmitted signals by effectively ro... | 01/27/1981 |
| 4225929 | Code converter circuitry system for selectively rotating a video display picture A code conversion circuit especially suited for, but not limited to, use with a video display apparatus of a type in which the screen is arbitrarily divided into plural domains defined by horizontal scan lines, Xi, and vertical section lines, Y... | 09/30/1980 |
| 4179685 | Automatic currency identification system A method and apparatus for automatically identifying paper currency, stocks, stamps, and the like, by optically examining and viewing regions on the currency. The graphic pattern scanned is stored as signal information and then compared with signals repre... | 12/18/1979 |
| 4155072 | Character recognition apparatus A character is scanned in a plurality of parallel scan lines and the starting and ending positions of the character in the respective scan lines are detected. The portions of the character between the starting and ending positions of the respective scan l... | 05/15/1979 |
| 4025898 | Recording representations of disrupted space patterns A method records the representations of disrupted space patterns such as fingerprints by generating phase frequency differences or moire representations of the image of the patterns or fingerprints which are converted to a waveform of electrical signals w... | 05/24/1977 |
| 4019173 | System for recognition of shape patterns A system for the recognition of shape patterns is disclosed which comprises reading the projection on a reference line of a shape pattern by means of a pattern input device, converting the output of the pattern input device into projection values, transfe... | 04/19/1977 |
| 4015239 | Character recognition apparatus Character recognition apparatus which converts two dimensional feature information derived from an unknown character into one dimensional feature information, such as a code train, and recognizes the unknown character by comparing the converted one dimens... | 03/29/1977 |
| 4007440 | Apparatus for recognition of approximate shape of an article Recognition of the approximate shape of a given article is accomplished by rotating the article by an angle of 180° for thereby producing a direct projection, moving this direct projection perpendicularly onto a reference line for thereby obtaining a per... | 02/08/1977 |
| 3980870 | Device for measuring contour length of a two-dimensional pattern A device for measuring the contour length of a two-dimensional pattern comprises means for scanning the pattern and sampling each scanned line at a predetermined length to convert the pattern into digitally coded patterns. A rotary means rotates the two-d... | 09/14/1976 |
| 3967243 | Character pattern normalization method and apparatus for optical character recognition system The character pattern from the scanner is stored in its original form in an auxiliary memory and in compressed form in a main memory. The slant and the horizontal and vertical second-order moments of the character pattern are sensed in the main memory, an... | 06/29/1976 |
