Abstract: A radiographic imaging apparatus (10) comprises a primary radiation source (14) which projects a beam of radiation into an examination region (16). A detector (18) converts detected radiation passing through the examination region (16) into electrical detector signals representative of the detected radiation. The detector (18) has at least one temporally changing characteristic such as an offset B(t) or gain A(t). A grid pulse means (64) turns the primary radiation source (14) ON and OFF at a rate between 1000 and 5000 pulses per second, such that at least the offset B(t) is re-measured between 1000 and 5000 times per second and corrected a plurality of times during generation of the detector signals. The gain A(t) is measured by pulsing a second pulsed source (86, 100, 138) of a constant intensity (XRef) with a second pulse means (88). The gain A(t) is re-measured and corrected a plurality of times per second during generation of the detector signals.

Abstract: A display device has an array of display elements (2) each driven by an input provided on a data conductor (6). These inputs are generated by data conductor addressing circuitry (9) which has a plurality of controllable driver circuits (32,34,40), each for providing an input to an associated data conductor. The number of controllable driver circuits is at least one greater than the number required for providing data to all data conductors. A reference driver circuit (30) is used for calibrating at least one of the controllable driver circuits whilst the other controllable driver circuits provide inputs to the data conductors. This provides a reduction in the spread of driver circuit outputs by calibration of the driver circuits using a reference driver circuit.

Abstract: A method and an apparatus for segmenting contours of objects in an image is disclosed. It particularly applies to the segmentation of body organs or parts depicted in medical images. An input image containing at least one object comprises pixel data sets of at least two dimensions. An edge-detected image is obtained from the input image. Markers are selected in the edge-detected image, and assigned respective fixed electrical potential values. An electrical potential map is generated as a solution to an electrostatic problem in a resistive medium having a resistivity dependent on the edge-detected image, with the markers defining electrodes at the respective fixed potential values. Object contours are estimated, for example by thresholding, from the generated potential map.

Abstract: An apparatus generates outgoing data (OD) to be provided on an optical disk (1) in a burst cutting area (2). The burst cutting area (2) further comprises markings (3) which cause a marking frequency spectrum (MFS) when reading out the burst cutting area (2). The apparatus comprises a channel coder (4) which receives processed data (PD) and supplies the outgoing data (OD) having an outgoing data frequency spectrum (DFS) with suppressed DC-content. The apparatus further comprises a data processing device (5) which generates the processed data (PD) to obtain an outgoing frequency spectrum (DFS) wherein a frequency component causing interference with a low frequent component of the markings (3) is suppressed or not present.

Abstract: A garment includes a sensor band of generally smaller dimensions than the garment for holding sensor electrodes incorporated in the band against a user's body while wearing the garment. The sensor band is elasticated to conform against the user's body and the garment is relatively loose fitting. The sensor band may be attached to the remainder of the garment by highly elastic and flexible webbing portions.

Abstract: When modeling anatomical structures in a patient for diagnosis or therapeutic planning, an atlas (26) of segmented co-registered CT and MRI anatomical structure reference images can be accessed, and an image of one or more such structures can be selected and overlaid with an MRI image of corresponding structure(s) in a clinical image of a patient. A user can click and drag landmarks or segment edges on the reference MRI image to deform the reference MRI image to align with the patient MRI image. Registration of a landmark in the patient MRI image to the reference MRI image also registers the patient MRI image landmark with a corresponding landmark in the co-registered reference CT image, and electron density information from the reference CT image landmark is automatically attributed to the corresponding registered patient MRI landmark.

Abstract: Provided is a connector (200; 700) for establishing an electrical connection with a conductive tape (100). The conductive tape comprises at least a first conducting layer (104) and an insulating layer (102). The connector comprises a first conductive region (204; 710) and a first connection region (712). The first connection region (712) is adapted to establish an electrical connection between the first conducting layer (104) of the conducting tape and the first conductive region (204; 110) when a perturbation is applied. The perturbation may be the application of pressure or temperature to the connector.

Abstract: The invention relates to a digital image processing architecture, particularly for processing digital images provided by a camera (101) of a biosensor reader (100). The architecture comprises a pixel processing unit (112) for evaluating a stream of image values (I(x,y,t)) with respect to a given set of processing spots (PSi(t) in the image area, thus determining characteristic parameters like the integral (Ei(t) of pixel values in the processing spots (PSi(t). The pixel processing unit (112) communicates with a higher-level digital control unit (130) that sets the processing spots (PSi(t) to be evaluated and that reads out and post-processes the results of the pixel processing unit (112).

Abstract: A method and apparatus for communicating information content by modulation of light in an illumination system via a liquid lens optically coupled to the illumination system and capable of modulation of light thereof, using resonant modes of the liquid lens. A modulation control system operatively coupled to the liquid lens and to the information content is configured to represent at least a portion of the information content as a time-varying configuration of the liquid lens, the time-varying configuration substantially including one or more of said one or more resonance modes. A receiver system optically coupled to the liquid lens is configured to reconstruct at least a portion of the information content from light modulated by the time-varying configuration of the liquid lens.

Abstract: A magnetic resonance imaging system (10) includes a main field magnet (12) which generates a B 0 magnetic field through an examination region (14). One or more electric power generators (30) are disposed in the B 0 magnetic field. Each of the electric power generators includes at least one winding or coil (34) which is rotatably mounted for movement relative to the B0 magnetic field. A mechanical mechanism (60) such as vanes or propellers (62), a turbine (74) in conjunction with a fluid pump (72), or a motor (78) in conjunction with a drive shaft (76) and gear box (74), drive the at least one winding (34) to move in such a manner that it interacts with the B 0 magnetic field to generate an electric current.

Abstract: The invention relates to a light emitting diode device comprising a light emitting layer (103) and a filter layer (105) arranged on a surface of the light emitting layer (103), the filter layer (105) being adopted to receive light from the light emitting layer, to pass light components within a predetermined angular range and not to pass light components outside the predetermined angular range.

Abstract: A sensor module (1) for measuring the distance to a target and/or the velocity of the target (50), the sensor module (1) comprising at least one laser source (100), at least one detector (200) being adapted to detect modulated laser light and at least one control element the control element (400) being adapted to vary the focus point of the laser light and/or the intensity of the laser light and/or the direction of the laser light. The control of the laser light emitted by the laser source (100) either by active optical devices as variable focus lenses or controllable attenuators or passive optical elements in combination with arrays of laser sources (100) and detectors (200) enable flexible and robust sensor modules.

Abstract: This invention relates to a system and method for measuring an object of interest (101). According to the invention, the system comprises a frame (120) having a plurality of holes (121) arranged in known positions and extending in known directions, each of the holes being arranged to cooperate with a rod (130) comprising a sensor (132); and the system comprises means (140) for measuring the position of each of the sensors (132) when the rod is inserted in the hole (121) and the sensor (132) is in contact with the surface of the object of interest (101). Furthermore, the system comprises a processor (150) for deriving the shape of the object of interest, based on the positions of the plurality of sensors.

Abstract: A method (400) for performing a multiple-sub-carrier-joint-modulation (MSJM) precoding. The method includes grouping input information bits into bit blocks (S410); converting the bit blocks into bit vectors (S420); mapping each of the bit vectors into a symbol vector (S430); and modulating symbol vectors into data subcarriers (S440).

Abstract: This invention relates to a method for controlling a switching device (260) for providing a resonant circuit (350) with a switching voltage (Uwr) for generating a resonant current (Ires) in order to provide a required output power (rP) at an output of a resonant power converter (100). The invention further relates to a control device which is adapted to perform the proposed method for controlling a switching device. Moreover the invention relates to a resonant power converter including a control device for performing the proposed controlling method.

Abstract: A source (19) for multiple energy X-ray generation in particular by field emitting carbon nanotubes (1, 2) is presented. In order to achieve a spatial overlap of the trajectories of the X-ray beams coming from different emitters, a focusing unit (7, 9) is supplied to the emitted electrons (28, 29). A fast switching between the emission of the different carbon nanotubes allows multiple kilovolt imaging. Independent determination of multiple focal spot parameters by the focusing unit leads to the possibilities of fast switching between different spot geometries and spatial resolutions. This might be seen in FIG. 1.

Abstract: This method for analysing the sounds of body fluid flows comprises:—simultaneously acquiring (2) sounds from various locations of a body;—identifying (6) the points of maximum sound intensity (PMIs) of the acquired sounds for each acquisition instant;—determining (10) the source locations of the acquired sounds; and—determining (12, 14) the sound radiation patterns of the acquired sounds. The invention also relates to the corresponding device, system and program.

Abstract: In a clinical environment, where multiple patients reside at any given time, central patient monitoring stations (10), such as nurses stations exist to consolidate information gathered concerning physiological parameters of the patients. The data is displayed in several panes (22) of a display (18) of the monitoring station (10). Due to certain size limitations of the display (18), it is often difficult to discern the data displayed on the panes (22), or to even display all of the data that is being gathered. A user can enlarge any given pane (22) into a zoomed pane (32) that offers greater functionality of any other pane (22), without completely obscuring, or adjusting the size of any other pane (22).