摘要:
The invention relates to a method and a device for generating a three-dimensional image of an object (14), said device comprising a movable radiation source (1), a radiation detector (2), and an analyzing unit. The radiation source (1) is moved relative to the object (14) to be imaged into multiple positions in a first movement (11) on a first track (3) which lies on a first plane in order to capture images, at least one image being captured in each said position. The three-dimensional image is reconstructed from the captured images by the analyzing unit. The radiation source (1) and the radiation detector (2) carry out a second movement (6) relative to the object (14) to be imaged on a second track which is at least partly different from the first track (3) at the same time as the first movement (11) in order to reduce artifacts in the image, said artifacts being generated due to radiation absorption. In the process, the first movement and the second movement are superimposed.
摘要:
The invention relates to an imaging system 200, particularly for an operating device 1000 with a device head 100 that can be adjusted in a mobile manner, comprising: - an image data capturing unit 210 with an image recording unit, particularly an operation camera 211, 212, designed to capture image data 300 in an operating environment OU; - an image data processing unit 220 designed to provide the image data; - an image storage unit 230 designed to hold the image data 300 of the operating environment and volume data of a volume representation 320 assigned to the operating environment. Also provided according to the invention are: - a registration means 260 designed to locate the image recording unit, particularly the operating camera 211, 212, relative to the operating environment; - a virtual pointer means 250 designed to make available, particularly to identify and/or to display, a number of surface points OS of the image data 300 automatically; and - an assignment means, particularly with calculating means 240, designed to assign automatically a volume point VP of the volume representation 320 to at least one of the surface points OS made available.
摘要:
The invention relates to a detector assembly (1) for recording x-ray images of an object (29) to be imaged, said object being located on a support plate of a table, wherein the table has at least one adjustable support foot for moving the support plate, comprising: a detector (12) for detecting x-radiation and a positioning device (13) for moving the detector (12) relative to the object (29), wherein the detector (12) can be moved into a plurality of recording positions that are spatially fixed with respect to the object (29) and the positioning device can be fastened to the support foot in such a way that the positioning device is moved together with the support plate and the positioning device has at least one articulated arm, which can be moved with respect to at least one axis of rotation (99, 100, 101) and/or one linear axis.
摘要:
The present invention relates to an X-ray source (2) for irradiating an object (8) to be imaged with X-ray radiation, wherein the X-ray source (2) is moveable into a plurality of defined recording positions relative to the object (8) to be imaged. A module (4, 5, 13) is arranged directly on the X-ray source, said module being designed to project a marking onto the object (8) to be imaged and/or to check a position of the object (8) to be imaged and/or of the marking, wherein the module for checking the position of the object (8) to be imaged and/or of the marking comprises a detector (5) for optical radiation. In addition, the present invention relates to an X-ray device (6) comprising the X-ray source (2) and a method for using the X-ray device (6).
摘要:
The present invention relates to a method and a device for capturing projection images of an object to be replicated (7). The device comprises a beam source (2), a beam detector (1) and a control unit (3), wherein the beam source (2) is moved by the control unit (3) on a path (12, 18, 27) into a plurality of positions, in which a beam emitted by the beam source (2) is transmitted in a cone beam shape around a central beam. At the same time as the beam source (2) is moved, the beam detector (1) is moved by the control unit (3) into a plurality of positions, in which the beam emitted by the beam source (2) and penetrating the object (7) to be replicated is intercepted to capture a projection image. The beam source (2) and/or the beam detector (1) are moved on a calculated path (13, 18, 20, 27) around the object (7) to be replicated, at a constant distance between the beam source (2) and the beam detector (1) or the object (7) to be replicated, which path is described by a polynomial nth degree and determined by the control unit (3) through an optimisation of a specified path along the central beam (19, 20), wherein the respective polynomial is selected in such a manner that a safety clearance with respect to the object (7) to be replicated is maintained and, at the same time, a distance between the beam detector (2) and the object (7) to be replicated is minimised. The invention further relates to a computer program product with a command sequence for actuating the device and performing the method.
摘要:
The invention relates to a movably manoeuvrable device (1000) with a mobile device head (100), in particular a medical mobile device head (100) with a distal end for arranging relative to a body, in particular for arranging in or on the body, with at least one mobile device head (100) designed for manual or automatic guidance, a guide mechanism (400) designed for navigation, an image processing unit (430), which creates a map (470) of the environment using the image data and a navigation unit, which by means of the image data and an image data flow can indicate at least one position (480) of the device head (100) using the map.