Abstract: A method for automatically detecting pulmonary embolism (PE) candidates within medical image data using an image processing device includes administering radiocontrast into a patient. A sequence of computed tomography (CT) images is acquired. A level of radiocontrast at a pulmonary artery trunk of the patient is determined. One or more PE candidates are detected within a pulmonary artery tree of the patient based on the determined level of radiocontrast at the pulmonary artery trunk. The one or more detected PE candidates are displayed.

Abstract: A method of detecting blood vessel shadows in an anterior posterior x-ray radiograph comprising the steps of: generating candidate sub areas of the radiograph showing changes in contrast above a threshold level; supressing rib shadow edges; eliminating lung tissue shadow edges, and categorizing and eliminating nodule shadows.

Abstract: Detected lung nodules are presented in a chest radiographic sub-image. A curve is matched to pixels in the sub-image and confidence values for individual pixels is determined. A confidence image is generated consisting of the confidence values at the position of the respective pixel. Separated regions of pixels within the confidence image are identified which have a confidence value greater than a threshold confidence value. A filtered confidence image is generated consisting of the separated regions of the confidence image which are larger than a threshold area. A histogram of values characteristic for the matching of the curve is determined, wherein the filtered confidence image is used as a mask, such that only values are considered for the histogram which correspond to the separated regions of the filtered confidence image. A statistical measure of the histogram is determined and the lung nodules are verified based on the statistical measure.

Abstract: A method of detecting lung nodules in an anterior posterior x-ray radiograph comprising the steps of: generating candidate regions in image showing changes in contrast above a threshold level, and eliminating false positives by eliminating edges assignable to organs by: identifying edges; categorizing and eliminating rib edges; categorizing and eliminating lung tissue edges, and categorizing and eliminating blood vessels.

Abstract: A system enables a user to mark a ROI of a vessel portion having detected boundaries and extend the detection of vessel boundaries into a region identified by the user. An anatomical blood vessel detection and display system includes a user interface enabling a user, via a display of an image presenting anatomical vessels, to, mark a region of interest in a vessel identified by detected boundaries in the image and extend the marked region of interest of the vessel. A detector automatically detects a boundary of the vessel in the extended marked region of interest by detecting an edge representing a change in luminance in data representing the image. An image data processor identifies a minimum vessel diameter in the extended marked region of interest between the detected boundaries and initiates identification of the location of the minimum vessel diameter in the image.

Abstract: A method for lesion detection includes acquiring pre-therapy medical image data from a first modality. Post-therapy medical image data is acquired from a second modality. A transformation matrix for transforming from an image space of the first modality to an image space of the second modality is calculated. A volume of interest is defined from the medical image data of the first modality. The volume of interest includes one or more lesions. The volume of interest is automatically copied to the medical image data of the second modality using the calculated transformation matrix. Treatment is directed to the lesion using the medical image data of the second modality including the copied volume of interest data.

Abstract: A system and method for generating test frames in specification-based testing by using a path-coverage criterion is provided. The method includes receiving a test design as an input, and constructing a context-free grammar graph, based on the test design. The method further includes analyzing the context-free grammar graph to generate a first set of paths, and emitting a set of test frames as an output, based on the first set of paths.

Abstract: A cable sealing device (10) includes a member (14) includes an elastomeric material and adapted to be fitted into a cable receiving aperture. The member includes a first wall (16) and a second wall (18) spaced apart from the first wall to partially define a cavity (20) between the walls. Each wall includes a cable receiving slot (e.g., 22, 24) formed in the wall. Each wall is deformable away from the respective slot to accommodate a respective cable portion (e.g., 26, 28) extended through the slot so that the wall is biased around the cable portion to minimize any opening around the cable portion passing through the slot. The slots in the respective walls cooperate to provide a redundant seal around a cable portion (30) passing through the member.

Abstract: Method to synchronize at least one mobile unit to at least one base transceiver station belonging to a digital telecommunication network, in which radio signals transmitted and received by said base station are subdivided in frames (Fn) having pre-determined duration and each frame is subdivided in a pre-determined number of timeslots (Tn) and codes (Cn), said signals including at least a synchronization signal (S), which is transmitted by the base transceiver station and includes a sequence of modulation elementary units suitable to identify the timeslot (T1) and the code (C1) of a service channel containing system messages (M), said method including the following operational steps: marking the synchronization signal (S) in at least one frame (Fx) by the base transceiver station; transmitting a pointer message (P) in the service channel of said frame (Fx) or of a subsequent frame (Fx+n) by the base transceiver station; detecting the marked synchronization signal (S?) by the mobile unit; receiving the poin

Abstract: Response time estimation is provided to forecast the response times of a telecommunications device, particularly, a media gateway (206a . . . n). A soft switch (216) switches communication data in a telecommunications network. A call feature server (202) performs call control functions. At least one media gateway (206a) for providing access to telecommunications transmission facilities. A packet manager (204) coupled to both the call feature server (216) and the media gateway (206a) implements message protocol conversion and call flow setup. The packet manager (204) includes a response time estimation module (208) for preventing traffic overload of the media gateway (206a) by the call feature server (202). Message retransmission times for the soft switch (216) are processed by the response time estimation module (208) based on empirical response times from the media gateway (206a) according to a exponential smoothing function.

Abstract: By selecting access points specific to the various components of call-content of a call, a monitoring agency is ensured of obtaining the call-content of each participant in telephone call irrespective of call transfers and network reconfiguration. Devices in the telecommunications system such as network devices can provide appropriate access. Examples of suitable network devices may include gateway, an access gateways, trunk gateways, portals, ATM switches, routers, and border elements.

Abstract: The present invention relates to adaptive phy mode systems, in which the modulation type and the forward error correction, jointly called phy mode, depend on the addressed terminal. Specifically, the present invention defines a power control technique for the terminal stations that also commands the phy mode switching. In particular, the peripheral stations transmit with the several phy modes so that the signals are received at the master station making a given performance related parameter equal. Then a hysteresis is defined which regulates the phy mode switching, setting suitable power thresholds of the signal. To keep the received power close to the working point of the appropriate phy mode, the master station relies on the received power level together with information regarding the unused power, which is available in the peripheral station. Thus, interference is reduced, and link coverage and throughput are optimized.

Abstract: In a communication system, a buffer is provided at or between a transmitting device and a receiving device. When the transmitting device is unable to send a stream of media packets or the receiving device is unable to render the stream of media packets, the buffer stores the media packets, and the size of the buffer is reduced when the transmitting device is able to send the stream of media packets and/or the receiving device is able to render the stream of packets.

Abstract: The invention discloses a method to perform downlink Power Control in packet switching cellular systems with dynamic allocation of the RF channel, such as GPRS/EGPRS. The performances concern a scenario in which a radio block transmitted from the Base Station (BTS) on a downlink channel has to be received from at least two MSs simultaneously, a first MS being the addressee of the data/control packet on the downlink TBF while the second MS being the addressee of the Uplink State Flag (USF) for scheduling transmission of the next data/control packet from an uplink TBF to an uplink shared channel. First MS transmits to the BTS a first measurement report including measures of BCCH level and interference level on all the timeslots, while the second MS transmits a NC report including measures of BCCH level only, that because detailed interference measure on the downlink channel are prevented due the absence of a concurrent downlink TBF.

Abstract: A method and a system are described to assign bandwidth in a point-to-multipoint ATM transmission system, comprising a centralized unit or Master Station (MS) and a plurality peripheral stations (PSs), in particular to assign transmission bandwidth on the channel from PSs to MS, by assigning transmission abilitations in defined time slots sending messages called Grants on the channel from MS to PSs. The system assigns bandwidth in the system using three different bandwidth allocation modalities, a static modality, and two separate dynamic modalities.

Abstract: A testing system includes simulation equipment for generating a radiofrequency test signal for the receivers of a base transceiver station, which is equipped with an intelligent array antenna having N sensors. The simulation equipment generates a complex signal consisting of N identical radiofrequency signals with differing phases. These signals are conveyed towards N antenna input connectors of the receivers to be tested. The N test signals are obtained by generating as many groups of N digital isofrequential carriers as are required to simulate the directions of a useful signal with an arbitrary number of echoes, and the directions of an arbitrary number of isofrequential interferent carriers. The N carriers of each group are appropriately modulated and digitally multiplied by the same number of relevant beamforming coefficients to produce, within each group, gradually increasing phase values.

Abstract: A device for providing radio frequency shielding is disclosed. The device includes a frame and cover removably attached to the frame. The frame is configured to extend generally around the periphery of an electronic component. The frame has an upper wall, sidewalls depending therefrom, and a plurality of stiffening flanges extending from the upper wall towards an interior portion of the frame. The cover has an upper surface and a plurality of members extending therefrom for engagement with the sidewalls of the frame. The cover and the frame form an enclosure for radio frequency shielding the electronic component.

Abstract: Methods and apparatus for automatically determining a call service request in a first communications device and for signalling the call service request determination to a second communications device. The second communications device can apply the service to the call based on the type of call service request. The methods and apparatus of the invention utilize predefined call criterion to make a determination of the call service request. The call criterion may, for example, be selected from called number, calling number, time of day, day of week, and date. An exemplary protocol and message encoding are disclosed.

Abstract: A data processing system comprises an audio processing means receiving data within said data processing system for converting the data into an analog signal with a first and a second analog channel components; an audio output means receiving the analog signal and providing a first and second output signal wherein the first output signal is provided for a loudspeaker and the output second signal is provided for a headset. The control of the audio processing means by a control signal providing an audio signal on the first or on the second channel or on both.