Abstract: A tomographic image capturing apparatus comprises a radiation source for applying radiation to a subject at a plurality of different angles with respect to the subject, a radiation detector for detecting the radiation which has passed through the subject at each of the different angles and converting the detected radiation into image data, a tomographic image reconstructing unit for processing the image data into a reconstructed tomographic image, and an image capturing continuation determining unit for determining whether image-capturing of the subject is continued or not based on the reconstructed tomographic image.

Abstract: A radiation image capturing apparatus that includes a radiation conversion panel comprises an input device for inputting a first distance from the position of the panel to a position serving as a reference position for a subject, a distance measuring unit for measuring a second distance from the radiation source to the panel, a first radiation field calculating unit for determining a radiation field at the position of the panel based on setting information of the radiation source and the second distance, a second radiation field calculating unit for determining a hypothetical radiation field at the reference position of the subject based on the setting information of the radiation source, the first distance, and the second distance, and a life-size correcting unit for correcting the radiation image information from the panel based on the information of the calculated radiation field and the information of the calculated hypothetical radiation field.

Abstract: A tomographic image capturing apparatus includes a plurality of radiation sources movable along a predetermined path, for applying respective radiation to a subject at different angles and at different times while moving along the predetermined path, a dose adjuster for adjusting the radiation sources to equalize doses of the radiation emitted from the radiation sources, a radiation detector for detecting radiation transmitted through the subject while the radiation sources move along the predetermined path, and converting the detected radiation into respective items of radiographic image information, and a tomographic image generator for generating a tomographic image of the subject based on the items of radiographic image information converted from the radiation and detected by the radiation detector.

Abstract: A tomographic image capturing apparatus includes a radiation source movable along a predetermined path, for applying radiation to a subject at different angles, a dose adjuster for adjusting the radiation source to make constant the dose of the radiation emitted from the radiation source independently of irradiation angles of the radiation with respect to the subject, a radiation detector for detecting the radiation transmitted through the subject while the radiation source moves along the predetermined path and converting the detected radiation into radiographic image information, and a tomographic image generator for generating a tomographic image of the subject based on the radiographic image information converted from the radiation detected by the radiation detector.

Abstract: A radiographic tomography apparatus includes a tomosynthetic image capturing section for applying radiation from a radiation source to an examinee at a plurality of different angles, and detecting the radiation transmitted through the examinee with a radiation conversion panel to capture a plurality of tomosynthetic tomography images of the examinee. The radiographic tomography apparatus further includes a still image capturing section for capturing a plurality of still images of the examinee in one image capturing position at different times, and a body motion detector for detecting a body motion of the examinee based on the still images captured by the still image capturing section.

Abstract: A radiation image diagnosing system includes a tomosynthesis image capturing assembly for acquiring the data of a plurality of tomosynthetic sectional images. The acquired data of the tomosynthetic sectional images are processed to reconstruct a shift-and-add image by a shift-and-add processor. The acquired data of the tomosynthetic sectional images are also processed to reconstruct an FBP image by an FBP processor. The shift-and-add image and the FBP image are displayed parallel to each other on a display unit.

Abstract: A radiographic imaging system comprises: a radiation source for irradiating an examinee with radiation; a radiation detector for detecting radiation that has penetrated the examinee to acquire radiographic image data; image data receiving unit for receiving the radiographic image data from the radiation detector and outputting a termination signal indicating that an image has been taken each time receiving the radiographic image data; control unit for controlling operations of the radiation source and the radiation detector and detecting a progress of an imaging session for successively taking a series of images according to the termination signal outputted from the image data receiving unit; and progress notification unit for notifying the examinee of a progress of imaging session detected by the control unit.

Abstract: The energy subtraction apparatus of the present invention comprises an image input device which inputs two or more different kinds of radiographic images having been taken by irradiating a subject with radiation rays with different radiation qualities, an information of body part acquisition device which designates a information of body part, a motion compensation processing device which performs a registration process by compensating for shift between corresponding points between the two or more different kinds of radiographic images due to movement of the subject, a subtraction device which performs an energy subtraction process on the two or more different kinds of radiographic images, and an operation mode switching device which switches an operation mode of the registration process at the motion compensation processing device depending on the information of body part.

Abstract: Images of various scenes can be classified with high accuracy by considering a characteristic part corresponding to a desired one of the scenes in the images and a change in position or area proportion thereof caused by composition difference. A local characteristic quantity image generation portion generates local characteristic quantity images from a target image input from an image input reception portion. A representative characteristic quantity calculation portion calculates representative characteristic quantities for each of the local characteristic quantity images from a result of sum-of-product calculations obtained by shifting and/or distribution change of masks of a type previously related to a type of the local characteristic quantity images in the corresponding local characteristic quantity image. An identification portion compares values of the representative characteristic quantities to identification conditions stored in a memory and judges whether the target image is of the specific scene.

Abstract: The type of an object included in an image is automatically recognized. An image is divided into object regions and into block regions each having a predetermined number of pixels and smaller than any one of the object regions. The types of the respective block regions are recognized and totaled up for each of the object regions. The type of each of the object regions is then recognized by using a result of totaling.

Abstract: Structural element candidates, estimated to be predetermined structural elements of a predetermined subject, are detected from an image that includes the subject. The subject that includes the structural element candidates is detected from the image in the vicinity of the detected structural element candidates. The characteristics of the structural elements are discriminated from the image in the vicinity of the structural element candidates, at a higher accuracy than when the structural elements were detected. In the case that the characteristics of the structural elements are discriminated, the structural element candidates are confirmed as being the predetermined structural elements.

Abstract: A temporary self-organizing map in which classes are associated with respective vector points is first derived by a first learning section of a data learning apparatus. Thereafter, by use of, for example, an improved method incorporating concept of vicinity learning intp learning vector quantization, a second learning section modifies the temporary self-organizing map and obtains a final self-organizing map. By use of the final self-organizing map thus derived, image meaning determining processing is performed.

Abstract: A radiation image capturing apparatus includes an image capturing device having a tomosynthesis control mechanism for moving a radiation source and a radiation conversion panel, which are disposed on the respective opposite sides of a subject, respectively in opposite directions in synchronism with each other, a longitudinal direction moving mechanism for moving an image capturing range of the image capturing device in a longitudinal direction of the subject, an image reconstructing unit for generating a single three-dimensional image from a plurality of radiation images captured in a single image capturing range, an image joining unit for joining a plurality of three-dimensional images generated by the image reconstructing unit with respect to a plurality of image capturing ranges, in the longitudinal direction of the subject, and a projection image generating unit for generating a two-dimensional projection image on an arbitrary image plane based on a joined three-dimensional image.

Abstract: A radiation conversion panel includes first pixels, each of which is one out of every n (n?3) adjacent pixels, and which, after a first energy-level image capturing cycle, are reset after electric charges have been read therefrom, and all pixels, including the first pixels, wherein, after the pixels have been reset, electric charges are read from all the pixels after a second energy-level image capturing cycle.

Abstract: A radiation conversion panel includes a first pixel group from which electric charges are read after a first energy-level image capturing cycle and after a second energy-level image capturing cycle, and a second pixel group from which electric charges are read after the second energy-level image capturing cycle, wherein pixels of the first pixel group and pixels of the second pixel group are arranged alternately.

Abstract: A radiation image capturing apparatus that includes a radiation conversion panel comprises an input device for inputting a first distance from the position of the panel to a position serving as a reference position for a subject, a distance measuring unit for measuring a second distance from the radiation source to the panel, a first radiation field calculating unit for determining a radiation field at the position of the panel based on setting information of the radiation source and the second distance, a second radiation field calculating unit for determining a hypothetical radiation field at the reference position of the subject based on the setting information of the radiation source, the first distance, and the second distance, and a life-size correcting unit for correcting the radiation image information from the panel based on the information of the calculated radiation field and the information of the calculated hypothetical radiation field.

Abstract: A radiation image capturing apparatus for producing radiation image information of a subject by applying a radiation to the subject on which a fixed member is mounted, including a subject image information acquiring unit for acquiring subject image information of the subject including the fixed member, an imaging region identifier for processing the acquired subject image information to identify an imaging region of the subject with the fixed member mounted thereon, an irradiated region controller for controlling an irradiated region to be irradiated with the radiation in order to apply the radiation to the identified imaging region, and a radiation conversion panel for converting the radiation that has passed through the imaging region into radiation image information.

Abstract: A radiation image processing apparatus includes a radiation source for irradiating the subject with the radiation, the subject being applied with a fixation material, a radiation source controller for controlling the radiation source in accordance with different image capturing conditions, a radiation converting panel for converting the radiation into one of the pieces of radiation image information, a processing condition memory for storing a plurality of processing conditions, each including the image capturing conditions that correspond to a type of the fixation material, a processing condition selector for selecting one of the processing conditions, the selected one of the processing conditions corresponding to the type of the fixation material, and an image processor for processing in accordance with the selected processing condition the plurality of pieces of radiation image information that are provided by the radiation converting panel under the different image capturing conditions, respectively.

Abstract: The present invention relates to a radiation image processing apparatus and a processing method. A processing condition selector selects from a processing condition memory a processing condition for extraction or removal of a specific object in radiation image information. The processing condition includes two different image capturing conditions which are provided to a radiation source controller. The radiation source controller controls a radiation source with each image capturing condition to apply radiation to a subject and a solid-state radiation detector stores radiation image information of the subject. An image processor performs a weighted subtraction using stored radiation image information in accordance with the processing condition to achieve extraction or removal of the specific object. The resultant radiation image information is displayed on a display unit.

Abstract: First, a face within an image, which is a target of detection, is detected. Detection data of the face is employed to detect eyes which are included in the face. Detection data of the eyes are employed to detect the inner and outer corners of the eyes. Detection data of the inner and outer corners of the eyes is employed to detect characteristic points of the upper and lower eyelids that represent the outline of the eyes.