Abstract: The invention relates to a radiation detector (100?) and a method for detecting radiation, particularly for detecting X-rays (X) in a CT imaging apparatus (1000?). According to a preferred embodiment, the radiation detector (100?) comprises a conversion element (110) for converting incident radiation (X) into electrical signals which are read out and processed by a readout circuit (120). A heating device comprising the heat source (135?) of a Peltier element is provided with which the conversion element (110) can controllably be heated in order to reduce negative effects, e.g. of polarization, on image accuracy, wherein the heat sink (137?) of the Peltier element is oriented towards the readout circuit.

Abstract: The invention describes a method of manufacturing an OLED device (1).

Abstract: An electronic switch for controlling a device 170 by switching a function of the device at least in dependence on a sleep stage of a human. The switch includes an EEG data interface configured to receive brain activity data from an EEG sensor 120 configured to monitor electrical activity of the brain of the human during a training phase, an EEG sleep classifier 125 configured to classify sleep stages of the human from the received brain activity data, and a body data interface configured to receive body activity data from an alternative sensor 130 configured to monitor a bodily function of the human both during the training phase and during a subsequent usage phase.

Abstract: The invention relates to a wrist-worn device (10) for sensing ambient light intensity, comprising a plurality of light receivers arranged at different positions of the wrist-worn device (10) in different orientations to receive light from different directions (+X, ?X; +Y, ?Y; ?Y; +Z, ?Z).

Abstract: A method includes determining calibration factors for calibrating photon-counting detectors of a spectral imaging system by combining a heuristic calibration of the photon-counting detectors and an analytical calibration of the photon-counting detectors and generating a set of photon-counting calibration factors based on the combining of the a heuristic calibration and the analytical calibration. The photon-counting calibration factors, when applied to measured energy-resolved data from the photon-counting detectors of a spectral CT scan of a subject or object, mitigate spectral distortion caused by a radiation intensity profile shaper that filters a radiation beam of the spectral CT scan.

Abstract: In summary the invention utilizes a patient's interaction with a user interface 120 of a controllable lighting system 100. The user interface enables light characteristics of the lighting system 100 to be adjusted such as the light color emitted from a light source 110 of the lighting system 100. A monitor 130 is provided for monitoring how the patient interacts with the user interface 120, e.g. by monitoring how frequent the patient interacts with the user interface, the monitored number of interactions may be processed by a processor 140 to determine a value of the coping style which indicates how active or passive the patient is.

Abstract: The invention relates to a system (100) for visualizing an object of interest comprised in a volume of an image dataset, the system comprising a path unit (110) for specifying a path in the volume of the image dataset on the basis of the object of interest, a location unit (120) for determining a location on a projection ray through the volume of the image dataset on the basis of the specified path, and a value unit (130) for computing a projected gray value corresponding to the projection rayon the basis of the determined location on the projection ray. Because the locations on the projection ray are determined based on the specified path for indicating the object of interest, the actual computation of the projection gray values may be designed and constructed to show gray values describing the object of interest while hiding gray values describing other objects, in particular occluding objects.

Abstract: An array of housings with housing bodies and lenses is molded, or an array of housing bodies is molded and bonded with lenses to form an array of housings with housing bodies and lenses. Light-emitting diodes (LEDs) are attached to the housings in the array. An array of metal pads may be bonded to the back of the array or insert molded with the housing array to form bond pads on the back of the housings. The array is singulated to form individual LED modules.

Abstract: A radiation detection device detects gamma or x-ray radiation quanta with improved timing accuracy and improved energy resolution. The radiation detection device finds application in the detection of gamma and x-ray radiation and may be used in the field of PET imaging, and in spectral CT. The radiation detection device includes a semiconductor scintillator element and a photodetector. The photodetector is in optical communication with the scintillator element. The scintillator element has two mutually opposing faces; a cathode is in electrical communication with one of the two faces and an anode is in electrical communication with the other of the two faces.

Abstract: The present application relates to a cutting head for a device for cutting hair. The cutting head has a laser generator (2) and an optical system (3). The optical system is configured to focus a laser beam (4) generated by the laser generator and direct the laser beam along an optical axis (16) across a cutting zone (8) in the cutting head. The laser generator and optical system are configured such that, in a focus spot (15) of the laser beam, a dimension of the focus spot, a power density of the laser beam and the numerical aperture of the laser beam are such that, when a hair is received in the cutting zone, the power output of the laser generator is minimized while ensuring that, for a predetermined exposure time, the hair received in the cutting zone is cut by optical absorption. The present application also relates to a device for cutting hair and a method of controlling a cutting head for a device for cutting hair.

Abstract: Spatial intensity distributions of scintillation photons emitted by the scintillator array (5) in response to multiple incident gamma rays in record are recorded (S10). Sets of coincidently emitted scintillation photons from the recorded spatial intensity distributions are determined (S22). The sets of coincidently emitted scintillation photons center-of-gravity positions (S24) and cumulative energies are determined (S26). A clustering analysis based on the determined center-of-gravity positions and cumulative energies to obtain clusters (26a, 26b, 33) of gamma ray events attributed to a scintillator array element is performed (15). A cluster (26a, 26b, 33) of the spatial intensity distributions is cumulated (S29) to determine a cumulative spatial intensity distribution of scintillation photons emitted in response to incident gamma rays in the scintillator array element.

Abstract: A method for improving image quality of image data includes analyzing, for each of a plurality of voxels of image data, a set of entries of a dictionary, wherein an entry represents a mapping between a lower resolution patch of voxels and a corresponding higher resolution patch of voxel or a local neighborhood around a voxel, deriving, for each of the plurality of voxels, a subspace based on the analysis, wherein the subspace is for one of the mapping or the local neighborhood, and restoring target image data based on the subspaces, wherein the target image data is image data with higher image resolution or reduced image noise.

Abstract: A system and method determines an isocenter for an imaging scan. The method includes receiving, by a control panel, patient data generated by at least one sensor, the patient data corresponding to dimensions of a body of a patient. The method includes generating, by the control panel, model data as a function of the patient data, the model data representing the body of the patient. The method includes receiving, by the control panel, a target location on the model data, the target location corresponding to a desired position on the body of the patient for performing the imaging scan. The method includes determining, by the control panel, an isocenter for the imaging scan as a function of the target location.

Abstract: A method includes determining a change in a volume of a tissue of interest located in at least two data sets between the at least two data sets. The at least two image data sets include a first image data set acquired at a first time and a second image data set acquired at a second time, and the first and second times are different. The method includes generating a rendering which includes a region in which the tissue of interest is located and indicia that indicates a magnitude of the change across the region. The region is superimposed over the rendering, which is generated based on at least one of the at least two image data sets, and linked to a corresponding image respectively in the at least two image data sets including voxels representing tissue of interest. The method includes visually presenting the rendering in a graphical user interface.

Abstract: A positron emission tomography (PET) system (10) and method (100) classifies gamma events. At least one processor (62, 66, 70) is programmed to receive event data for a plurality of scintillation events corresponding to gamma events. The gamma events are generated by gamma photons from a region of interest (ROI) (14). The gamma events of the event data are classified into a plurality of classifications. The classifications distinguish between single-crystal gamma events and multi-crystal gamma events.

Abstract: A safety protection arrangement is provided for a lighting arrangement. An electrical parameter is measured with the driving of the lighting arrangement with particular driving settings and it is compared with an estimated expected value of the electrical parameter so that a safety warning signal or a shutdown can be provided in the event of a detected system failure.

Abstract: An apparatus is configured such that passage of a fluid through an open port of a distal probe tip enables detection of a substance that may be present on a surface, e.g., a surface of a tooth, based on measurement of a signal correlating to a substance at least partially obstructing the passage of fluid through the open port. The apparatus includes a proximal pump portion and at least one distal probe portion configured to be immersed in another fluid, e.g., water in toothpaste foam. A corresponding system includes one or two such apparatuses. A method of detecting the presence of a substance on a surface includes probing an interaction zone for at least partial obstruction of flow of the fluid through the distal probe tip. The distal probe tip may have a structural configuration for preventing blocking of the open port. The distal probe tip may also have a non-uniform wear profile. The at least one distal probe portion may include two or multiple components to improve performance and reliability.

Abstract: The present invention relates to a device for tomosynthesis imaging, the device comprising: a mask generator module (101) configured to generate a binary mask based on a geometric three-dimensional model of a scanned object; an image capturing module (102) configured to scan a series of two-dimensional projection images of the object; and an image processing module (103) configured to apply the generated binary mask during a reconstruction of a three-dimensional image volume from the scanned series of two-dimensional projection images and to restrict an extent of the reconstructed image volume to the extent of the geometric model.

Abstract: An alarm (35) provided by a fall detection system (2) may be caused by an accidental drop of the system. Therefore prior to issuing the alarm the fall detection system a confirmation is needed that a potential fall originates from a fall detection system that is worn by a user (4). A fall of a fall detection system that is not attached to a user is characterized by the occurrence of one or more full rotations of the system. Said rotations are identified by analyzing the output signal of a magnetometer, and by detecting a periodicity in said output signal. The fall detection system (2) provides the alarm in dependence of an identified absence of at least one full rotation.

Abstract: A magnetic resonance imaging protocol includes an acquisition segment to control an acquisition sequence to acquire magnetic resonance signals at a lower main magnetic field strength. A reconstruction segment controls reconstruction of a diagnostic magnetic resonance image from the magnetic resonance signals at a lower main magnetic field strength. A segmentation segment to control segmentation of a pre-determined image-detail of the diagnostic magnetic resonance image. In the magnetic resonance imaging protocol: the acquisition sequence has a set of imaging parameters that cause the image quality of the diagnostic magnetic resonance to be similar to the image quality of the magnetic resonance training images.