Abstract: A method and a device are disclosed for the perspective representation, via an output image, of at least one virtual scene component arranged within a real scene. In the method, depth image data of the real scene is captured from a first perspective via a depth image sensor, and 2D image data of the real scene is captured from a second perspective via a 2D camera. Further, a virtual three-dimensional scene model of the real scene is created with reference to depth information from the depth image data, and at least one virtual scene component is inserted into the three-dimensional virtual model. Finally, an output image is generated by way of perspective projection of the 2D image data corresponding to the second perspective onto the virtual three-dimensional scene model comprising the virtual scene component.

Abstract: A method and system are disclosed for outputting augmented reality information to a first user. In an embodiment, the method includes acquiring first information, including image information, depth information, coordinate information and combinations thereof, the first information relating to at least one of a medical device and a medical examination of a patient; creating the augmented reality information, relating to the medical device and/or the medical examination of the patient, based on the first information; and outputting the augmented reality information such that the augmented reality information is perceivable in a field of view of the first user.

Abstract: An embodiment of the invention relates to the use of the spectral composition of X-ray radiation in addition to the intensity thereof in order to determine the attenuation caused by an object. Another aspect of an embodiment of the invention is a device, particularly a radiation monitor for an X-ray or CT system, which is suitable for performing the aforementioned procedure according to an embodiment of the invention.

Abstract: A method is for displaying position information relating to a position of a region of interest of a patient relative to an examination unit of an imaging apparatus. A first examination plane is assignable to the examination unit and a camera is disposed relative to the examination unit such that, via a lens of the camera, three non-collinear reference points lying in a first reference plane parallel to the first examination plane are mapped to three collinear first image points lying on a first line. In an embodiment, the method includes capturing a camera image of the region of interest via the camera; displaying a positioning image, the positioning image including the camera image; and displaying first marking information relating to a position of the first line in the positioning image.

Abstract: The automated positioning of an examination table relative to a medical-technical imaging installation is provided. A camera image is frozen by a first user interaction. Reference information is defined in the frozen camera image by a second user interaction. An examination table or medical-technical imaging installation with the aid of a positioning system is moved based on congruence between the reference location information with a recording region of the medical-technical imaging installation.

Abstract: An X-ray detector with photon-counting directly converting detector elements and a method for the temperature stabilization of at least one detector element of an X-ray detector of a CT system are disclosed, wherein the detector elements use a sensor material which converts incident photons of radiation directly into free-moving charge in the sensor material and wherein with the aid of a circuit arrangement (e.g. an ASIC), the number of incident photons in relation to predefined energy ranges (e.g., to imaging) is determined, wherein the total electrical power of at least one detector element is kept constant regardless of the incident intensity of radiation.

Abstract: A medical device is controlled as a function of a position of a control element projected onto a projection surface, wherein a geometric property of the projected control element is adjusted to the surface structure. The adjustment is accomplished by means of a transformation of projection data, the projection data corresponding to the control element that is to be projected. The optical projection of the control element is based on the transformed projection data. Such an adjustment and transformation are made possible by determining the surface structure of the projection surface. The control system has an image processor both for determining the surface structure and for transforming the projection data. The control system additionally has a projector for optically projecting the control element and a control unit for controlling the medical device based on the first position of the projected control element.

Abstract: An embodiment of the invention relates to the use of the spectral composition of X-ray radiation in addition to the intensity thereof in order to determine the attenuation caused by an object. Another aspect of an embodiment of the invention is a device, particularly a radiation monitor for an X-ray or CT system, which is suitable for performing the aforementioned procedure according to an embodiment of the invention.

Abstract: A quantum-counting radiation detector in which signals of individual pixels and signals of combined pixels are evaluated in parallel processing branches and count results are combined in an appropriate manner, thereby reducing the influence of unwanted interference effects for the respective application.

Abstract: A sensor instrument for generation of electrocardiograms, in particular for cardiac computed tomography, has two electrodes, an electronic module and a support, wherein multiple suction elements for affixing the support to the body of a subject (are positioned on the support.

Abstract: A method is used to determine motion of an examination region of a patient. It is based on the use of a flat antenna arrangement, including at least one transmit unit and several receive units, as well as on the use of the transmit unit actuated by a control signal for the transmission of radar signals in the direction of the examination region, and the use of receive units for the receipt of radar signals reflected by the examination region. The method further includes the read-out of receive signals from the receive units, with the receive signals corresponding to the radar signals received. The assignment of the radar signals received to the transmit unit which transmitted the radar signals received in each case, by correlating the receive signals to the control signal, advantageously makes possible the adjustment of parameters derived from the correlated receive signals to retrievably stored model data.

Abstract: A radar system, a medical diagnostic or therapeutic device and a method are disclosed for operating a radar system. An embodiment of the radar system includes an antenna arrangement embodied to be flat including individually actuatable transmit units for the transmission of radar signals and individually readable receive units for the receipt of radar signals. The transmit units and the receive units each include at least one antenna. Because the transmit units can be individually actuated and the receive units can be individually read out, the information content which can be obtained even without a strong spatial orientation of the radar beam, is increased. According to an embodiment of the invention, the radar system is designed to assign a radar signal received by a receive unit to the transmit unit which transmitted the radar signal received.

Abstract: A method is disclosed for homogenization of threshold values of a multichannel, quanta-counting radiation detector. In an embodiment of the method empty measurements are carried out with the detector at different spectral compositions of the radiation with different settings of threshold values of the comparators. For each channel of which the comparators is to be set to the same energy threshold, an adapted threshold value is determined for this energy threshold from the empty measurement, at which a variation of the normalized count rate of the channel is minimized over the different spectral compositions of the radiation. This avoids problems in the further processing of the measurement data of the detector, which can occur during alterations of the spectrum.

Abstract: An imaging medical apparatus has at least one device to identify a plane in space. The device has: a light source that emits a fan-shaped light beam, the light source is rotatable around a light source rotation axis. The device also has a mirror that reflects the fan-shaped light beam, the mirror being rotatable around a mirror rotation axis and encompassing a mirror plane. The mirror rotation axis and the surface normal of the mirror plane enclose an angle greater than 0° and less than 90°.

Abstract: A patient bed for an imaging medical apparatus has a patient support plate that has at least one radar antenna to obtain physiological and/or geometric data from a patient the patient support plate. In a method for the operation of such a patient bed having at least one radar antenna in an imaging medical apparatus, the at least one radar antenna is operated to obtain data from the patient on the patient support plate.

Abstract: An apparatus and method to enable a simple installation of a sensor unit (in one example an intra-oral x-ray sensor) on a network. The sensor unit is preferably a sensor in the medical field, and it is provided that the sensor unit is itself fashioned as an access point and establishes its own network on which a computer automatically logs on in order to enable a data transfer between the sensor unit and the computer. Due to this measure no expertise is necessary for the installation of the sensor unit.

Abstract: An X-ray detector with photon-counting directly converting detector elements and a method for the temperature stabilization of at least one detector element of an X-ray detector of a CT system are disclosed, wherein the detector elements use a sensor material which converts incident photons of radiation directly into free-moving charge in the sensor material and wherein with the aid of a circuit arrangement (e.g. an ASIC), the number of incident photons in relation to predefined energy ranges (e.g., to imaging) is determined, wherein the total electrical power of at least one detector element is kept constant regardless of the incident intensity of radiation.

Abstract: A method is disclosed for homogenization of threshold values of a multichannel, quanta-counting radiation detector. In an embodiment of the method empty measurements are carried out with the detector at different spectral compositions of the radiation with different settings of threshold values of the comparators. For each channel of which the comparators is to be set to the same energy threshold, an adapted threshold value is determined for this energy threshold from the empty measurement, at which a variation of the normalized count rate of the channel is minimized over the different spectral compositions of the radiation. This avoids problems in the further processing of the measurement data of the detector, which can occur during alterations of the spectrum.

Abstract: An optical adjustment device has a laser unit with at least one laser radiation source as well as an adjustment phantom which is arranged relative to the laser unit such that laser radiation emitted by the laser unit strikes the adjustment phantom. A fluorescent medium) is applied on the adjustment phantom, the fluorescent medium being designed to emit light of a different wavelength from the laser radiation upon being struck by laser radiation. This light is detected by a photodetector that is at a location spatially separated from the adjustment phantom, such as at the laser unit.

Abstract: A quantum-counting radiation detector is disclosed, in particular an x-ray detector. In at least one embodiment, the signals of the individual pixels and the signals of combined pixels are evaluated in parallel processing branches. It is then possible to combine the count results in an appropriate manner, to reduce the influence of unwanted interference effects for the respective application.