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| Number | Title | Issue Date |
| 5689577 | Procedure for the simplification of triangular surface meshes for more efficient processing A volume image memory (24) stores an electronic image representation of a volumetric region, such as the volumetric region examinedby a medical diagnostic scanner (10). A sub-region of interest of the volume is selected (30) and the surface of the selecte... | 11/18/1997 |
| 5671157 | Method and system for displaying three dimensional images A system and a method for displaying a three dimensional image and also a method for displaying a three dimensional image by selecting a ROI on at least two selected reference images from the input images obtained by scanning a body. The method is charact... | 09/23/1997 |
| 5644651 | Method for the estimation of rotation between two frames via epipolar search for use in a three-dimensional representation A technique for compensating for egomotion of the camera used to record a pair of two-dimensional views of a scene when the pair of images is to be used to provide a three dimensional representation of the scene. The technique involves comparing histogram... | 07/01/1997 |
| 5642293 | Method and apparatus for determining surface profile and/or surface strain A photogrammetry target (cube or other shape of known dimension with reference points in known relation to each other) is placed on or in close proximity to a surface for which surface profile and/or surface strain are to be measured. Identifiable referen... | 06/24/1997 |
| 5625420 | Special effect picture device A special effect picture device is disclosed in which a transformed picture which is non-linear with respect to an original signal is formed using a video signal and a key signal for the original signal. A video signal is stored in a video signal storage ... | 04/29/1997 |
| 5617491 | Estimation of surface geometry from relative range images A semi-automatic method is provided for finding an equation for a geometric surface patch that closely approximates a geometric surface within a digitized scene. By finding equations for patches within a scene, equations representing the entire scene can ... | 04/01/1997 |
| 5586246 | Image synthesis apparatus An image synthesis apparatus for synthesizing an image using model data including information which defines a three-dimensional structure for an object having a plurality of faces, original image data representing values of pixels respectively belonging t... | 12/17/1996 |
| 5561723 | Localized image compression calculation method and apparatus to control anti-aliasing filtering in 3-D manipulation of 2-D video images A dynamically variable anti-aliasing filtering system calculates on a local basis the compression factors (Cf) present in an image that is being mapped from a two-dimensional source image through a three-dimensional space and into a two-dimensional target... | 10/01/1996 |
| 5519794 | Computer-generated autostereography method and apparatus A method and apparatus for making autostereographic images wherein a computer is provided with a number of planar images in digital form, in a two-dimensional array of columns and rows of digital data. The columns are interleaved and rotated to form an in... | 05/21/1996 |
| 5491646 | Production of anaglyphs A method for producing and anaglyph includes the steps of: producing a first image color record having at least two color numbers per pixel and representing the distribution of at least first and second image colors in one of the images of a stereo pair o... | 02/13/1996 |
| 5467409 | Method for determining a surface to be hidden and image transforming apparatus Methods and apparatus for transforming input image data representing an image to produce output image data representing a transformed image are provided. Input image data is stored in a first memory in the form of input data blocks. Read addresses for rea... | 11/14/1995 |
| 5369736 | Texture mapping method A texture mapping method projects a specified texture picture onto the surface of an object in another specified picture. Three-dimensional data on the surface shape of the object to be projected is not known previously. The three-dimensional data on the ... | 11/29/1994 |
| 5283837 | Accurate estimation of surface normals in 3-D data sets A CT scanner or other medical diagnostic imager (A) generates data which is reconstructed (B) into a three-dimensional image representation that is stored in an image memory (C). Points on a surface (10) of a selected subregion, such as the surface of an ... | 02/01/1994 |
| 5282262 | Method and apparatus for transforming a two-dimensional video signal onto a three-dimensional surface A method and apparatus for transforming a two-dimensional input video signal onto a three-dimensional surface and for depicting illumination thereof by a spot light source transforms the two-dimensional video signal in accordance with a mapping data signa... | 01/25/1994 |
| 5247590 | Signal encoding and decoding system An encoding/decoding apparatus is described wherein an encoding apparatus comprises a feature-image-extracting section, a three-dimensional shape model adjustment section, a brightness information detection section, a patch dividing section and a threshol... | 09/21/1993 |
| 5214511 | Image transforming apparatus An image transforming apparatus forms an output image by mapping input image onto a three-dimensional curved surface, and obtains a position of a region on an input image corresponding to a position on the output image where image information becomes disc... | 05/25/1993 |
| 5214721 | Signal encoding and decoding system An encoding/decoding apparatus is described wherein an encoding apparatus comprises a feature-image-extracting section, a three-dimensional shape model adjustment section, a brightness information detection section, a patch dividing section and a threshol... | 05/25/1993 |
| 5175773 | Method of three-dimensional reconstruction of arborescence by labeling In order to reconstruct an angiographic arborescence, two images are acquired according to orientations substantially perpendicular to each other of an arborescence (IVA,CX) to be reconstructed. By a follow-up operation of the segments, the coordinates of... | 12/29/1992 |
| 5165965 | Method for providing predistored images on shrinkable film An image to be printed on shrink film for packaging an object is predistorted before printing so that the printed image will return to substantially its original form when the part of the film bearing the image is shrunk against a predetermined part of th... | 11/24/1992 |
| 5155775 | Structured illumination autonomous machine vision system A method and apparatus for automatically determining pathway boundaries for autonomous robotic navigation. A structured light pattern consisting of a plurality of lines is projected on the pathway and background and the reflected pattern is detected by a ... | 10/13/1992 |
| 5020114 | Object discriminating apparatus and method therefor An object sensor outputs an obstacle detection signal in response to passing of an obstacle. A central control unit reads a 2-dimensional image from an imaging unit in response to the obstacle detection signal. A detection area is obtained by subtracting ... | 05/28/1991 |
| 5016173 | Apparatus and method for monitoring visually accessible surfaces of the body This invention relates to an improved apparatus and method for in vivo monitoring of visually accessible surfaces of the body. The invention synthesizes methods of systems identification and computer vision to quantify and/or classify features of surface ... | 05/14/1991 |
| 4935879 | Texture mapping apparatus and method A texture mapping apparatus for the real-time display of a figure in which an animated image has been mapped. The apparatus includes a device which generates 2D (2 dimensional) source coordinates data which provide a source for texture mapping data corres... | 06/19/1990 |
| 4845651 | Geometric modelling system A geometric modelling system having a display device which displays two-dimensional wire frame pattern representing surfaces which constitute a three-dimensional form as an object, and an operation unit which automatically forms, as the user appoint a poi... | 07/04/1989 |
| 4692878 | Three-dimensional spatial image system A system in which a three-dimensional image of an object is stored in a data input device in the form of a family of points each defined by digital data representing the x-y-z Cartesian coordinates of the point. Digital signals derived from the data input... | 09/08/1987 |
