Patent application number | Description | Published |
20090214091 | ALIGNMENT APPARATUS AND PROGRAM THEREFOR - An alignment apparatus and a program that improve the accuracy of alignment between two radiation images are provided. For each of portions of the two radiation images, evaluation means calculates an evaluation value that evaluates an amount of positional shift regarding a tissue radiographed in the radiation images, and search condition setting means sets for each of the portions a condition of search for corresponding positions between the two radiation images based on the evaluation value. According to the search condition having been set, alignment means searches for the corresponding positions between the two radiation images, and aligns the two images by warping at least one of the radiation images. | 08-27-2009 |
20090238341 | IMAGING SUPPORT DEVICE FOR RADIOGRAPHIC LONG LENGTH IMAGING - An image taking support device for radiographic long length imaging, the image taking support device providing an image of a subject, the image being longer than a length of a maximum field of view of a radiation detector, by combining a plurality of radiographic images each partially overlapping another at the overlapping parts, the device comprising:
| 09-24-2009 |
20110305405 | METHOD, APPARATUS, AND PROGRAM FOR ALIGNING IMAGES - A band image generating means generates a plurality of first band images and a plurality of second band images that represent structures of different frequency bands within a first and a second image of the same portion of a single subject. A positional shift amount obtaining means obtains amounts of positional shift among corresponding positions within the first band images and the second band images of corresponding frequency bands. | 12-15-2011 |
20150193948 | BODY MOTION DETECTION DEVICE AND METHOD - A contrast calculating unit calculates a contrast of a high frequency component and a contrast of a low frequency component of a transformed radiographic image at an analysis point set by an analysis point setting unit. A ratio calculating unit calculates a ratio of the contrast of the high frequency component to the contrast of the low frequency component. A determining unit determines whether or not there is a body motion during an imaging operation to take the radiographic image based on the ratio. A display control unit displays a result of the determination on a display unit. | 07-09-2015 |
20150327828 | BODY MOTION DISPLAY DEVICE AND BODY MOTION DISPLAY METHOD - Disclosed are a body motion display device and a body motion display method which efficiently performs operation for confirming the presence or absence of body motion included in a radiographic image. An index value calculation unit calculates an index value representing body motion based on the ratio between contrast of a high-frequency component and contrast of a low-frequency component in a radiographic image at an analysis point set by an analysis point setting unit. A display control unit selectively displays, on a display unit, at least one of a plurality of kinds of body motion information based on index values at a plurality of analysis points. | 11-19-2015 |
20150379726 | BODY MOTION DETECTION DEVICE AND METHOD - A contrast calculating unit calculates, as each of a contrast of a high frequency component and a contrast of a low frequency component of a transformed radiographic image, a contrast in a gradient direction of an edge portion in an analysis region with each of analysis points set by an analysis point setting unit being the center of the analysis region. A ratio calculating unit calculates, for each gradient direction, a ratio of the contrast of the high frequency component to the contrast of the low frequency component. A determining unit determines the smallest ratio as an index indicating the body motion, and determines whether or not there is a body motion during an imaging operation to take the radiographic image based on a result of statistical processing of the indexes at the analysis points. A display control unit displays a result of the determination on a display unit. | 12-31-2015 |
20160089094 | RADIOLOGICAL IMAGE PHOTOGRAPHING APPARATUS AND OPERATING METHOD OF RADIOLOGICAL IMAGE PHOTOGRAPHING APPARATUS - A distance between a radiation source standard point indicating a position of a radiation source and a photographic subject on a standard line passing through the radiation source standard point and a detector standard point indicating a position of a detector is measured, a distance between a first reference point positioned in a first direction which is directed towards the detector standard point from the radiation source standard point with respect to the detector standard point and the detector standard point is measured, a distance between a second reference point positioned in a direction opposite to the first direction with respect to the radiation source and the radiation source standard point is measured, and a subject thickness of the photographic subject is calculated by using the distances and a distance from the distance from the first reference point to the second reference point. | 03-31-2016 |
20160089104 | RADIATION IMAGE ANALYSIS DEVICE, METHOD, AND PROGRAM - The distance between the radiation source and an object (SOD value) is acquired, distance dependent information which is obtained from a radiation image and changes with the distance between a radiation source and a radiation detector (SID value) is acquired, a temporary thickness of the object is determined by a first function representing the correspondence relationship of first information having at least one piece of the distance dependent information, the SID value, and the thickness of the object, and the temporary SID value is determined by adding the SOD value to the determined value. The thickness of the object is determined by a second function representing the correspondence relationship of second information having at least one piece of the distance dependent information, the SID value, and the thickness of the object, and the SID value is determined by adding the SOD value to the determined value. | 03-31-2016 |