| Patent application number | Description | Published |
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| 20080205738 | Method and Apparatus for Calibration and Correction of Gray Levels in Images - A method and apparatus for calibrating an apparatus that acquires a sequence of radiographic images and correcting images of an object under observation. For each image of a sequence acquired by the apparatus and for a given frequency of acquisition of the sequence, the apparatus is calibrated by determining the value of the variation of a mean of gray levels in at least one zone of interest of the current image of at least one calibration device, the variation being determined relative to the mean gray level of the first image of the sequence in each zone of interest. The determination of the variation is reiterated for a series of images sequences acquired using calibration devices resulting in first images of mean gray levels different from one sequence to another. Each image of an image sequence of the object under observation is corrected, comprising zones of observation having different gray levels by subtracting from the current image the variation of one gray level relative to the first image of the object, the subtraction being a function of the gray level considered from each zone of observation. | 08-28-2008 |
| 20090304253 | METHOD OF PROCESSING RADIOLOGICAL IMAGES, AND, IN PARTICULAR, MAMMOGRAPHIC IMAGES - A method of processing a radiological image of an organ. The method may comprise generating a recombined image (R) from at least one previously acquired low energy image (L) and one high energy image (H) of a portion of the organ. The recombined image comprises a background and one or more areas corresponding to the presence of a contrast medium in the organ. The method may further comprise correcting the recombined image (R) by compensating (C) for the nonuniformities present in the background to obtain a compensated recombined image in which the background has a substantially uniform grey level. | 12-10-2009 |
| 20090304256 | METHOD OF EXTRAPOLATING A GREY-LEVEL BIDIMENSIONAL IMAGE IN A RADIOGRAPHY DEVICE AND A RADIOGRAPHY DEVICE IMPLEMENTING SUCH A METHOD - A method of extrapolating a bidimensional grey-level image using a radiography device. | 12-10-2009 |
| 20110019891 | MEDICAL IMAGING PROCESS FOR TRIPLE-ENERGY MODELING, AND DEVICE FOR IMPLEMENTING SUCH A PROCESS - A method for X-ray imaging of a body using an imaging device comprising an image sensor and an X-ray emitter which operates at different emission spectra, wherein the method includes: acquiring a first image resulting from the passage through the body of X-rays emitted by the X-ray emitter with a first emission spectrum; calculating characteristics of the body on the basis of the first image, and calculating a second and a third emission spectrum based on the characteristics of the body, wherein the first, second and third emission spectra are distinct from one another; acquiring a second and third image resulting from the passage through the body of X-rays emitted by the X-ray emitter with the second and third emission spectrum respectively; and modeling the body by generating thickness charts for different materials comprising the body on the basis of the three images. | 01-27-2011 |
| 20110150178 | METHOD FOR PROCESSING TOMOSYNTHESIS ACQUISITIONS IN ORDER TO OBTAIN A REPRESENTATION OF THE CONTENTS OF AN ORGAN - A method for processing tomosynthesis images of an object of interest, using an imaging system, the imaging system comprising an X-ray source positioned facing a detector on which the object of interest is positioned. With the method of an embodiment of the invention, it is possible to obtain a representation of the contents of an organ. | 06-23-2011 |
| Patent application number | Description | Published |
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| 20080219567 | Tomosynthesis imaging data compression system and method - A technique and system are provided for compression of tomosynthesis imaging data. In an embodiment of the present technique, tomosynthesis imaging data may be compressed by processing a stack of tomosynthesis images such that differences between some or all of the images or estimates of the images are encoded. In another embodiment of the present technique, tomosynthesis imaging data may be compressed by differentially compressing two or more regions within the one or more tomosynthesis imaging datasets. In addition, there is provided tangible, machine readable media, with code executable to perform the acts of obtaining one or more tomosynthesis imaging datasets and compressing the one or more tomosynthesis imaging datasets using one or more compression algorithms. | 09-11-2008 |
| 20090262887 | MAMMOGRAPHY SYSTEM AND METHOD FOR ITS OPERATION - A mammography system including a compression device, comprising two compression members to compress a breast, a sensor to sense the pressure exerted by the breast on one of the members and/or a device to determine the distance between the two members, an X-ray image acquisition system, means to adjust an initial position of the members. The system further comprises means to monitor variations in pressure and/or variations in thickness relative to their initial value, for an estimation of the risk of breast movement. The system further comprises means to present the user with information signalling breast movement, in relation to the estimation. | 10-22-2009 |
| 20110150172 | MEDICAL IMAGING SYSTEM AND METHOD - A medical imaging device capable of determining the number of projections in which at least one point located above or at the level of the object support surface is present. | 06-23-2011 |
