Patents by Inventor Reiner H. Kopp
Reiner H. Kopp has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 5978439Abstract: The invention relates to a method which enables distributed or dilute structures, for example a vascular system filled with a contrast medium, to be reproduced in a synthetic projection image which reproduces the parts of the vascular system which are situated in a selectable sub-volume more clearly than the X-ray images, formed from different perspectives, wherefrom the projection image is derived. The voxel image values associated with the voxels of the sub-volume are first determined and from these voxel image values there is calculated a synthetic projection image in which the selected sub-volume is reproduced.Type: GrantFiled: February 5, 1998Date of Patent: November 2, 1999Assignee: U.S. Philips CorporationInventors: Reiner H. Koppe, Erhard P.A. Klotz, John Op De Beek
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Patent number: 5852646Abstract: An X-ray imaging method, and device for carrying out the method, utilizes a first imaging device to form and digitally store a series of two-dimensional X-ray images in which an object to be examined is projected onto an X-ray image pick-up device from different perspectives, and a second imaging device to form a three-dimensional image of the same object. Quasi three-dimensional reproduction of anatomic structures is achieved by extracting a relevant structure of the object to be examined from the three-dimensional image, calculating synthetic, two-dimensional projection images of the extracted structure, the structure being projected with the same geometrical parameters as used for the relevant structure during the formation of the individual X-ray images, forming superposition images by superposing the synthetic projection images and the X-ray images formed under the same geometrical conditions, and displaying the series of superposition images.Type: GrantFiled: May 7, 1997Date of Patent: December 22, 1998Assignee: U.S. Philips CorporationInventors: Erhard P. A. Klotz, Reiner H. Koppe, John Op De Beek, Hans Aerts
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Patent number: 5671297Abstract: A distorted input image, produced by an X-ray exposure and composed of pixels defined by their position and their respective input image value, is transformed into a substantially distortion-free output image composed of pixels defined by their position and their output image value. Improvement is achieved in that the transformation utilizes a determination of the position of the corner points of the pixels of the output image (or the input image) as well as the surface area of a polygon defined by the corner points in the input image (output image).Type: GrantFiled: March 4, 1996Date of Patent: September 23, 1997Assignee: U.S. Philips CorporationInventors: Reiner H. Koppe, Erhard P. A. Klotz
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Patent number: 5319749Abstract: A memory arrangement for fast geometric transformation of an image is formed by a first memory for storing image values generated by an image-generating system, a second memory for storing image values corresponding to an image resulting from geometric transformation of image values from the first memory, and a third memory with the same number of memory addresses as the second memory and in which an assignment between the addresses of the first and second memories is stored.Type: GrantFiled: June 16, 1992Date of Patent: June 7, 1994Assignee: U.S. Philips CorporationInventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde, Karsten P. Hansen
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Patent number: 5117446Abstract: An X-ray diagnostic apparatus, comprises an X-ray source (1), an imaging surface (6) on which the intensity distribution of the X-rays to be applied to a test object (4) is imaged, an optical imaging device for imaging an overall image (10) of the imaging surface (6) onto the entrance surface of a first image sensor (11), a device (12) for the visual display of the overall image (10), and an imaging enlargement device for the enlarged visual display of a selectable detail of the overall image. Strongly enlarged and still high-resolution detail images are generated in that the selectable detail (20) of the overall image is directed onto a second image sensor 16) which discriminates a substantially higher number of pixels relative to the unit of surface area of the overall image.Type: GrantFiled: February 15, 1991Date of Patent: May 26, 1992Assignee: U. S. Philips CorporationInventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde
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Patent number: 5022066Abstract: The invention relates to a method of forming images of layers of an object, and a device for performing this method. The layer images are formed from single-shadow images produced from different radiation source positions. The image values of the single-shadow images are first stored in a first as well as in a second memory. From the values of given image points in the second memory, a layer image value is calculated. The layer image value is added to the corresponding image points in a third memory. From the differences between these standardized sums in the third memory and the original image values in the first memory, there are formed correction values for correcting the image values in the second memory. Improved layer images are thus obtained.Type: GrantFiled: November 15, 1985Date of Patent: June 4, 1991Assignee: U.S. Philips Corp.Inventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde
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Patent number: 4888794Abstract: The invention relates to a method which enables spatial display in cases where X-ray images are formed from different perspectives which are situated far apart. To this end, from the single images a synthetic image of the examination zone is calculated for at least one position which neighbors one of the radiation source positions, which synthetic image is used for imaging the examination zone.Type: GrantFiled: March 24, 1988Date of Patent: December 19, 1989Assignee: U.S. Philips CorporationInventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde
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Patent number: 4853947Abstract: The invention relates to a method of generating a layer image from a plurality of single images, the image processing errors which locally occur in the single images being substantially eliminated in the layer image. To this end, the image values for the individual layer image points are formed by that image value of the image points geometrically situated with the layer image point which corresponds to the next to the lowest absorption value.Type: GrantFiled: September 22, 1987Date of Patent: August 1, 1989Assignee: U.S. Phillips CorporationInventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde
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Patent number: 4720843Abstract: The invention relates to an X-ray subtraction method, and equipment for implementing this method, in which a moving structure is subtracted from the fixed background. The picture values corresponding to the minimum absorption are used as the mask image for each picture element from the projection images.Type: GrantFiled: April 17, 1986Date of Patent: January 19, 1988Assignee: U.S. Philips CorporationInventors: Paul R. Haaker, Erhard P. A. Klotz, Reiner H. Koppe, Rolf E. Linde
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Patent number: 4696187Abstract: A method for rapidly transferring chromatography or adsorption column eluates in a continuous flow directly to the chromatography plate for continuous evaporation of the solvents at a rate compatible with the flow.Type: GrantFiled: January 30, 1985Date of Patent: September 29, 1987Assignee: Biochemical Diagnostics, Inc.Inventors: Reiner H. Kopp, Allen I. Panetz
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Patent number: 4351800Abstract: There is disclosed apparatus for rapidly transferring samples for analysis by thin layer chromatography from a sample container to the chromatography plate and in which a chromatography plate is supported in a housing through which drying air, preferably heated, passes over the working surface of the chromatography plate. A plurality of sample applicators are precisely positioned above the plate by means of a transverse mounting plate having a transverse array of holes through which the applicators are passed to engage the working surface of the plate, the applicators taking the form of an imperforate sleeve surrounding a porous core projecting from the end of the sleeve and sharpened to a point to minimize exposure, with the other end of the sleeve projecting beyond the inner end of the porous core to define a solvent reservoir which if desired can be packed with fiber wadding to control fluid flow and with the reservoir adapted to be closed by a sealing cover member.Type: GrantFiled: February 6, 1981Date of Patent: September 28, 1982Assignee: Biochemical Diagnostics, Inc.Inventors: Reiner H. Kopp, Allen I. Panetz
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Patent number: 4219530Abstract: There is disclosed apparatus for automatically extracting compounds of clinical significance from a plurality of biological samples simultaneously by elution using a multi-channel system with common sources of wash reagents and eluent and common pre-programmed controls for all channels including means to purge wash and dry the channels between stages and means to inject essentially inert gas plugs as the interfaces between subsequent liquid phases. The extracted compounds can be mixed with reagents, mechanically agitated and examined qualitatively and/or quantitatively as by spectrophotometry to yield output readings for all channels. The flow patterns within the channels are determined by liquid-apportioning means and fluid distribution and metering, including both liquid and gaseous is accomplished by valves which respond to single control inputs to effect flow in all channels simultaneously.Type: GrantFiled: January 27, 1978Date of Patent: August 26, 1980Assignee: Brinkmann Instruments, Inc.Inventors: Reiner H. Kopp, John Schmermund