Abstract: The present invention provides a radiography device for producing an X-ray image of a tooth or a structure supporting the tooth. The radiography device of the present invention includes: an X-ray source for generating X-rays; a projection unit for projecting a user control mode image to the outside as user control information for controlling the X-ray source; and a control unit including an operation unit for user operation, and controlling the X-ray source according to the user control information selected through the operation unit.

Abstract: Provided is an X-ray imaging device for radiographing an object. The X-ray imaging device includes a generator configured to emit X-rays, a sensor unit configured to detect the X-rays using at least one sensor, a gantry having the generator and the sensor unit facing with the object therebetween, and a sensor moving part provided in the sensor unit and configured to move the sensor while the gantry rotates about a rotating axis.

Abstract: Disclosed is an apparatus for computed tomography (CT) image data reconstruction based on motion compensation. The apparatus for computed tomography (CT) data reconstruction based on motion compensation, the apparatus including a storage configured to store projection radiographs and an image processor configured to obtain pairs of opposite projection radiographs from the projection radiographs, and compensate a movement of a radiography subject based on a correlation between the projection radiographs of each pair of opposite projection radiographs.

Abstract: The present invention relates to an X-ray image processing device and an X-ray image processing method using a small X-ray detector, in which the device includes a controller configured to control an X-ray source and an X-ray detector to obtain m (m is an integer of 2 or more) number of consecutive divided projection images at each of preset n (n is an integer of 1 or more) number of imaging angles while rotating around a rotary axis and facing each other, a projection image synthesizing unit configured to generate a synthetic projection image by synthesizing the m number of divided projection images obtained in correspondence to each imaging angle, and an image reconstructor configured to generate a reconstructed image by reconstructing the synthetic projection image.

Abstract: Disclosed is a dental X-ray imaging device having a curved detector. The dental X-ray imaging device according to the present invention comprises: an X-ray source for radially emitting X-rays; and a curved detector formed in a cylindrical two-dimensional curved shape or a round three-dimensional curved shape, which is arranged to be spaced apart at a predetermined distance from the X-ray source and has substantially the same radius of curvature as the predetermined distance.

Abstract: The purpose of the present invention is to provide a method for obtaining a more effective 3D facial image for medical use. The present invention provides a medical imaging system includes a 2D surface image obtaining device including at least one camera for photographing a plurality of 2D facial images of an examinee, at different photography angles or ranges, a visual guidance configured to fix an examinee's line of vision, an X-ray radiography device for radiographing a 3D X-ray radiograph of the examinee's head, and an image synthesis unit for generating a 3D facial image by matching the plurality of 2D facial images with the 3D X-ray radiograph.

Abstract: The present invention relates to an X-ray photographing device and, more specifically, to an X-ray photographing device comprising a variable type arm which can irradiate, without limitation of location or direction, X-rays to a subject using the variable type arm of which the length and rotation angle of joints, etc. are variable.

Abstract: Disclosed is a dental X-ray CT photographic device. In order to resolve this issue, the CT photographic device according to the present invention comprises: a column; a first facing part which is disposed oriented towards an object to be examined on one side of the column, and comprises one or other of an X-ray generator and an X-ray sensor; a rotational arm coupled in such a way as to be able to rotate through at least a predetermined angular range with respect to the column; and a second facing part which is disposed on the rotating arm, on the far side from the column, facing the first facing part with the object to be examined placed in between, and which comprises the other of an X-ray generator and an X-ray sensor.

Abstract: Disclosed is an X-ray imaging device, the device including: an X-ray radiation unit for radiating X-rays to the predetermined target areas of an object to be imaged in respective imaging positions; an X-ray sensing unit for receiving the X-rays; a movement unit for arranging the X-ray radiation unit and the X-ray sensing unit to allow the X-ray radiation unit and the X-ray sensing unit to face each other in the respective imaging positions, with the object located therebetween; a position information provision unit for providing position information of the X-ray radiation unit and the X-ray sensing unit, position information of the variable rotary shaft, and position information of the target areas; a control unit for controlling the X-ray radiation unit, the X-ray sensing unit, and the movement unit; and an image processing unit for producing three-dimensional images of the object from the projection data.

Abstract: A medical image processing device is disclosed. The disclosed medical image processing device may include: an input interface through which a depth adjusting command is input from a user; an image processor and controller generating a two-dimensional reconstruction image by overlapping a part or all of CT image data in a view direction, and changing a contrast of at least a part of the two-dimensional reconstruction image according to the depth adjusting command; and a display part displaying the two-dimensional reconstruction image.

Abstract: Disclosed is a dental X-ray imaging device having a curved detector. The dental X-ray imaging device according to the present invention comprises: an X-ray source for radially emitting X-rays; and a curved detector formed in a cylindrical two-dimensional curved shape or a round three-dimensional curved shape, which is arranged to be spaced apart at a predetermined distance from the X-ray source and has substantially the same radius of curvature as the predetermined distance.

Abstract: The disclosure is related to a device and method for obtaining a complete and accurate three-dimensional surface image of a target object by registering a three-dimensional optical image with a volume data obtained by X-ray imaging. The device for generating a three-dimensional surface image for dentistry includes a three-dimensional imaging module including an optical camera which obtains a three-dimensional optical image of the target object and an X-ray imaging unit which obtains X-ray images of the target object in multiple directions, a reconstruction unit generating a volume data by reconstructing the X-ray images, and an image processing unit registering the three-dimensional optical image with the volume data and generating a three-dimensional surface image of the target object by substituting a different portion of the three-dimensional optical image with a boundary of the volume data.

Abstract: The present invention relates to an X-ray collimator capable of adjusting a field of view during X-ray imaging and an X-ray imaging apparatus using the same, the apparatus including an X-ray light source configured to emit X-rays, an X-ray detector configured to detect the X-rays, and a collimator configured to provide an opening to determine an FOV of the X-rays between the X-ray light source and the X-ray detector, wherein the opening is configured such that at least one of a first edge at an entrance side facing the X-ray light source, and a second edge at an exit side facing the X-ray detector is formed in a curved shape.

Abstract: The present invention relates to radiation-shielding clothing for limiting the radiation exposure of radiographers and assistants at the time of radiography by using a lightweight lead-free sheet shielding X-rays, the radiation-shielding clothing including: a top main body including a torso portion; and a shielding sheet, at least a part thereof being capable of being coupled to or detached from the top main body using attachment and detachment means, wherein the shielding sheet contains a substrate of a resin material and tungsten or tungsten oxide powder.

Abstract: Disclosed are a charging cradle and a portable radiography device including the same, which is capable of displaying the residual battery capacity when the portable radiography device is being charged and even when not being charged and, more specifically, displaying the possible number of times of radiography in real time by using the residual battery capacity, such that a user can exactly determine when to charge. The portable radiography device includes a radiography device main body having a rechargeable battery, a first communication unit provided in the main body to transmit battery charging state information, a charging cradle configured to receive external power to supply charging power to the battery, a second communication unit provided in the charging cradle to receive the battery charging state information from the first communication unit, and a display unit provided in the charging cradle to display the battery charging state information.

Abstract: A method and an apparatus for providing panoramic image data by reconstructing frame images captured by a panoramic imaging apparatus, are disclosed. In reconstruction of images with multiple image layers, sizes of images reconstructed with an image layer or images to be used for a reconstruction are scaled. An image is selected by analyzing sharpness. A panoramic image is provided by combining selected image. According to the present invention, parts having unclear focal planes may be completely removed in a panoramic image and it is possible to provide an image including only with focused regions.

Abstract: The present invention relates to an X-ray imaging device and, particularly, to an X-ray imaging device which is formed by pixelating a plurality of X-ray emitting elements for respectively emitting X-rays toward an object to be photographed and a plurality of X-ray detecting elements for respectively detecting X-rays passing through the object to be photographed, on the same or different flat surfaces or curved surfaces in a matrix.

Abstract: The present invention relates generally to a cephalometric X-ray image acquisition device. More particularly, the present invention relates to a cephalometric X-ray image acquisition device capable of providing a three-dimensional facial optical image and a cephalometric X-ray image of a subject.

Abstract: Disclosed are a backscattered ray shielding mechanism and a portable X-ray generating device comprising the same. The backscattered ray shielding mechanism according to the present invention is mounted on a portable X-ray generating hand-held device to emit X-rays and blocking backscattered X-rays during X-ray emission and includes a lead-free lightweight shielding member, which is detachably or foldably mounted as a convertible form on an X-ray emitting unit of the portable X-ray generating device and partially supported by the X-ray emitting unit.

Abstract: Disclosed are an X-ray imaging apparatus capable of acquiring highly accurate three-dimensional surface data as well as a CT image of teeth and surrounding tissues thereof of a subject without increasing the dose of X-ray and the discomfort for the subject compared to conventional CT imaging, and an X-ray imaging method using the same. The X-ray imaging apparatus includes an X-ray generator; an X-ray sensor disposed to face the X-ray generator, and configured to receive X-rays transmitted through a subject to generate an electric signal, and a subject jig configured to support the subject and to move the subject to be relatively rotated about at least two axes with respect to an X-ray propagation path, wherein a CT image and high-precision three-dimensional surface data are reconstructed and provided by using a plurality of X-ray imaging data acquired through a plurality of scan sequences.