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| Number | Title | Issue Date |
| 8089494 | Image rotation Presented is a method of rotating an input image comprising a plurality of rows of input pixels by a predetermined arbitrary angle to generate a rotated output image comprising a plurality of rows of output pixels. The method comprises: receiving a first input segme... | 01/03/2012 |
| 7356200 | Method and device for determining skew angle of an image Methods and apparatuses for determining a skew angle of text relative to an axis are disclosed herein. One exemplary embodiment of the method comprises locating a first portion of the text that has a spatial frequency greater than a first preselected value. The meth... | 04/08/2008 |
| 7351152 | Hand-held game apparatus, game program storage medium and game control method for controlling display of an image based on detected angular velocity A game apparatus includes a hand-held housing, a display screen, and a gyro sensor for detecting an angular velocity of a rotation around an axis perpendicular to the display screen. When the player rotates the game apparatus around the axis, a rotation angle of the... | 04/01/2008 |
| 7348999 | Alignment method and apparatus An alignment aiding method and apparatus enables an orienting and positioning of a data carrying 2-dimensional graphical symbol within a field of view of an imaging device. The desired orientation and position is indicated by a graphical alignment indicator. The gra... | 03/25/2008 |
| 7304653 | Display apparatus and method for altering display elements based on viewpoint A display apparatus is constructed of a display device for displaying a character and a map display processing part that receives a setting from which side the display device is viewed, and rotates a character to be displayed on the screen of display device if the i... | 12/04/2007 |
| 7139441 | Image processing device performing inclination correcting processing An image processing device extracts resolution data from an input image data, and executes resolution converting processing on the input image data to provide longitudinal and lateral resolutions equal to each other when the longitudinal and lateral resolutions are ... | 11/21/2006 |
| 7130463 | Zoomed histogram display for a digital camera An apparatus and a method are provided to allow a portion of a captured image to be evaluated with a digital camera. A display device of the digital camera can display the captured image. A specific area of interest of the captured image can be defined on the displa... | 10/31/2006 |
| 7057626 | Dropout control in subpixel rendering The present invention relates to dropout control in which one or more samples are added to adjacent samples that fall within an image outline. The samples are used in sub-pixel rendering to compensate for unnaturally thin or faint object stems. Horizontal dropout co... | 06/06/2006 |
| 6959121 | Document image processing device, document image processing method, and memory medium A document image processing device can correct the location of a document of an arbitrary format. The reference position of a document image is designated previously by a reference position designation unit. The document image is input per page and stored. A predete... | 10/25/2005 |
| 6943808 | System and method of reducing aliasing in printed images The system and method reduces aliasing which is formed by the patterns that are introduced by the halftone screens used in the printer. The system and method provides halftone-specific anti-alias filters for obtaining optimal effective resolution in printed images. ... | 09/13/2005 |
| 6903742 | Method and apparatus for transforming and rendering graphical curves The present invention provides a method and apparatus for rendering images on a computer screen. Under the invention, a portion of a base image is described using a path. The path is then transformed using a non-affine transform to produce a transformed path. The tr... | 06/07/2005 |
| 6727910 | Method and system for inversion of detail-in-context presentations In a data processing system that executes a program of instructions, a method of inverting a distorted surface in a detail-in-context presentation is provided comprising the steps of locating a first approximation point in an undistorted surface for the inversion of... | 04/27/2004 |
| 6518974 | Pixel engine In accordance with the present invention, the rate of change of texture addresses when mapped to individual pixels of a polygon is used to obtain the correct level of detail (LOD) map from a set of prefiltered maps. The method comprises a first determinat... | 02/11/2003 |
| 6407746 | Image processing method for high speed display based on rotation of different kinds of data including reduced data and apparatus for the same An image processing apparatus includes a data dividing section for dividing digital data into a plurality of blocks of data. A first parallel shift control section controls, block by block, first parallel shift for shifting the blocks of digital data to p... | 06/18/2002 |
| 5577182 | Image processing apparatus An image processing apparatus which performs a rotating process at a specified angle on the image data entered into it and forms image data as processed for rotation thereof on a page memory device. In the image processing apparatus, it is possible to per... | 11/19/1996 |
| 5568600 | Method and apparatus for rotating and scaling images A method and apparatus, within a computer system, for rotating and scaling an image using a three step process. The amount of image rotation and scaling is user defined. The three step process precisely rotates an input image to rapidly produce an output ... | 10/22/1996 |
| 5446803 | Image signal processing apparatus Disclosed is an image signal processing apparatus in which the position of an input image can be corrected easily irrespective of the shape of the input image by use of attribute information obtained from image information. Image information read by an im... | 08/29/1995 |
| 5426733 | Image rotation apparatus capable of rotating image data of different numbers of pixel bits Input image data of N bits per pixel is written to and read from buffer memories each having a word length of B bits on a W/N-line basis in the order in accordance with a specified rotation angle and an image size. A word synthesizing circuit synthesizes ... | 06/20/1995 |
| 5359706 | Image rotation using block transfers A digital image is rotated clockwise, for example, by the steps of (1) dividing it into rectangular contiguous blocks, the center of any selected block being located to the left and down a half pixel from the center of a contiguous block to the right and ... | 10/25/1994 |
| 5295237 | Image rotation method and image rotation processing apparatus An image rotation method and an image rotation processing apparatus in an image processing apparatus are disclosed. The image rotation method obtains the image coordinates (x',y') of a rotated image which is recorded in a second memory, by sequentially sc... | 03/15/1994 |
| 5187753 | Method and apparatus for identification and correction of document skew A method and apparatus for identifying and correcting for document skew. Lines of a bitmap are scanned and a variance in the number of ON pixels as a function of skew angle is calculated. Skew of the original document occurs when the variance is a maximum... | 02/16/1993 |
| 5181260 | Method for determining the amount of skew of image, method for correcting the same, and image data processing system Method for determining and correcting the amount of an skew of image which may be read by an image reader, preferably one with with an automatic paper feeding device. Information dependent on the angle of skew of image is obtained in a plurality of the di... | 01/19/1993 |
| 5101270 | Method and apparatus for radon transformation and angular correlation in optical processors A method and electro-optical apparatus for generating the Radon transform and angular correlation of input images using optical signal processing techniques is disclosed. In the preferred embodiment, video feedback of raster scanned images is utilized to ... | 03/31/1992 |
| 5093653 | Image processing system having skew correcting means An image processing system comprises a memory for storing an input image data in a bit map, a display coupled to the memory for displaying an image which is described by the input image data, an input device for inputting a point data for designating a st... | 03/03/1992 |
| 5050225 | Image processing apparatus and method An image processing apparatus and method is disclosed for rapidly rotating images through selected angles by first generating each pel row of a scaled version of an original image in response to scaling values determined by the rotation angle selected; th... | 09/17/1991 |
| 5014046 | Display pager with supplemental display means A pager includes a display mounted on the front side of a pager housing. On the back side of the housing is mounted a clip which is used for carrying the pager on the user's belt. The display displays a received message and inverts the displayed message i... | 05/07/1991 |
| 4985849 | Image processing system for forming a slantwise-mapped or rotated modified image of an original image An image processing apparatus for forming a modified image from an original image, in which addresses for the modified image are calculated, and corresponding addresses of the original image are calculated, both sets of calculations being performed in suc... | 01/15/1991 |
| 4975977 | Rotation processing method of image and system therefor In an image data rotating system for applying rotation processing to input image data of a large picture plane, the image data is divided into rectangular small blocks and rotation processing is applied to the image data of each block. The rotation proces... | 12/04/1990 |
| 4930088 | Rotated graphic pattern generating system A rotated pattern generating system includes at least a X-direction straight line generator adapted to calculate, a difference in X- and Y-directions between the position of a given dot on a destination coordinate and a position of the next dot to be coor... | 05/29/1990 |
| 4876488 | Raster rotation circuit A system for rotating images on a raster display device through an angle includes a tilt angle signal, first and second tilt angle sine function modulators and first and second tilt angle cosine function modulators. The horizontal deflection circuit of th... | 10/24/1989 |
| 4829452 | Small angle image rotation using block transfers A simplified method for rotating a digital image through a small angle without the need for interpolation is described. The image is divided into small, square blocks, arranged in horizontal rows where each block is exactly to the left or right of the oth... | 05/09/1989 |
| 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 |
| 4754269 | Graphic display method for displaying a perspective view of an object on a CRT A graphic display method for transforming three-dimensional coordinate values (x, y, z) of an object to be displayed into coordinate values (X,Y) of a two-dimensional display coordinate system on a CRT display screen (DPS), and displaying a perspective vi... | 06/28/1988 |
| 4656467 | TV graphic displays without quantizing errors from compact image memory High-amplitude-resolution graphics for raster-scanned television systems are generated beginning with relatively low-amplitude-resolution sampled data from image memory affording spatial resolution approximately the same as that of the television signal, ... | 04/07/1987 |
| 4653012 | Display systems A display system including a display device, a storage means having an array of storage locations each location being adapted to contain data representing a visual parameter of a different pixel of a picture to be displayed, and signal generating means fo... | 03/24/1987 |
| 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 |
| 4633243 | Method of storing characters in a display system In a method of storing characters in a display system having a display device with an orthogonal matrix of addressable points, each character is represented as a succession of strokes each constrained to lie in one of the eight fundamental directions of t... | 12/30/1986 |
| 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 |
| 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 |
| 4545069 | Rotation of digital images A method for the rotation of digital images which minimizes the number of disk accesses needed. It is useful where the size of the image is large compared with the available computer memory. In a first step, the image is divided into horizontal regions of... | 10/01/1985 |
