Abstract: The embodiments of the present disclosure provide a method and a device for braking a vehicle and a vehicle. After the device for braking a vehicle receives a braking instruction based on V2X, the device for braking a vehicle detects the presence or non-presence of obstacles within a preset safe range by a ranging radar, and if an obstacle is detected within the preset safe range, the braking device is actuated to perform braking. Because the presence or non-presence of obstacles within the preset safe range is detected by the ranging radar mounted on the vehicle prior to making braking, the misjudgment possibility for making braking may be reduced, and thus the technical problem of being dangerous when implementing emergency braking using V2X in the related art is solved.

Abstract: The present disclosure provides a method and a device for processing data, a wireless router and an Internet of Vehicles system. According to the method, by using TDM, messages are received and transmitted based on frequency point of WAVE protocol and Wi-Fi (Wireless Fidelity) protocol respectively, at physical layer; at MAC layer, a first message received based on the frequency point of WAVE protocol is subject to protocol processing by using WAVE protocol stack; at MAC layer, and a second message received based on the frequency point of Wi-Fi protocol is subject to protocol processing by using Wi-Fi protocol stack. By using such manner of combining TDM and FDM, it is possible to realize integrated processing of messages based on different protocols, enabling the current wireless router based on Wi-Fi protocol to be compatible with WAVE protocol.

Abstract: In some embodiments, a vehicle ad hoc network routing method based on WAVE (Wireless Access in Vehicular Environments), includes: generating one or more random ID; packaging an arbitrary random ID among the one or more random ID in a WAVE message; and sending the WAVE message through a DSRC short message, and recording the random ID packaged in the WAVE message in a message forwarding record queue. Embodiments of a vehicle ad hoc network routing device and system based on WAVE are also disclosed. Message routing and forwarding in an Ad hoc network can be achieved.

Abstract: The invention discloses a failure alert method for a vehicle, the method including: if a failure detection device of the present vehicle detects failure information of the present vehicle, then sending the failure information of the present vehicle to an alert device and a wireless communication device; sending, by the wireless communication device, the failure information to the outside; and generating, by the alert device, an alert signal according to the received failure information. The invention further disclose a failure alert device for a vehicle, the device including: a failure detection device; a wireless communication device communicatively connected with the failure detection device, configured to send failure information wirelessly to the outside; and an alert device communicatively connected with the failure detection device and the wireless communication device. The invention alleviates in effect a traffic accident from occurring due to the failure of the vehicle.

Abstract: The present disclosure discloses a driver fatigue alert method for a vehicle. The method includes: if a driver fatigue detection device detects driver fatigue information of the present vehicle, then sending the driver fatigue information of the present vehicle to an alert device and a wireless communication device; sending, by the wireless communication device, the driver fatigue information to the outside; and generating, by the alert device, an alert signal according to the driver fatigue information. The present disclosure further discloses a driver fatigue alert system for a vehicle, where the system includes: a driver fatigue detection device; a wireless communication device communicatively connected with the driver fatigue detection device, configured to send driver fatigue information to the outside wirelessly; and an alert device communicatively connected with the driver fatigue detection device and the wireless communication device.

Abstract: A method and apparatus of aligning calibration projection data with object projection data to improve calibration corrections of the object projection data. In a first implementation, the method interpolates and upsamples both the calibration and object data, then shifts the upsampled calibration data to match a sub-view angular offset of the object data, and then performs calibration corrections before down-sampling the corrected object data. In a second implementation, the method continuously scans an object space—with the object absent (present) in the object space—to obtain calibration data (object absent) and object data (object present) both having the same sub-view angular offset. In a third implementation, the method obtains multiple scans having different sub-view angular offsets, organizes the scans into bins according to their respective sub-view angular offsets, and chooses the appropriate sub-view angular offsets bin for calibration corrections of the object data.

Abstract: A navigating device and a vehicle are disclosed. A V2X communication circuit electrically connected with the navigating unit may be additionally provided in the navigating device; thereby a communication connection with nearby vehicles may be established via V2X communication. Since V2X is a kind of short-range communication, it is possible to perform interactions with nearby vehicle by establishing communication connection with nearby vehicles via V2X communication, and may address the technical problems that the navigating device in the related art have unitary functions and thus cannot perform interaction with nearby vehicles.

Abstract: A method and apparatus for multi-source content blending.

Abstract: The present teaching relates to providing a search result. In one example, a search request is received from a user. A plurality of content items is determined based on the search request. One or more content items are selected from the plurality of content items. A framed structure having at least one sub-component is generated. A correspondence is determined between the one or more content items and the at least one sub-component. Each of the one or more content items is arranged with respect to a corresponding sub-component. A search result is generated based on the one or more content items and the framed structure. The search result is provided.

Abstract: A detector includes a photon-counting detector (PCD) layer and a cathode layer arranged adjacent to the PCD layer. The detector further includes a plurality of pixilated anodes arranged adjacent to the photon-counting detecting layer on a side opposite to the cathode layer. The detector also includes a plurality of collimator segments arranged above the cathode layer so as to block a portion of X-ray photons emitted from an X-ray source from reaching the anodes, where each collimator segment is arranged above a portion of at least one anode.

Abstract: A CT scanner apparatus includes an X-ray source mounted on a gantry of the CT scanner apparatus. The CT scanner apparatus also includes a first X-ray detector mounted on the gantry opposite to the X-ray source, and configured to detect X-rays emitted from the X-ray source and transmitted through an object. The CT scanner apparatus also includes a fixed, sparse array of second X-ray detectors. Each of the second X-ray detectors includes a plurality of stacked scintillators and a photosensor adjacent to a sidewall of the stacked scintillators in a side-readout configuration.

Abstract: A computed tomography (CT) apparatus and a method for determining response of a photon-counting detector of a CT scanner. Based on a count rate of an incident spectrum and a dead time parameter of the photon-counting detector, a highest pileup order that has a contribution towards an output spectrum of the photon-counting detector greater than a threshold corresponding to the pileup order is determined. In computing the overall output spectrum of the photon-counting detector, only the spectra corresponding to pileup orders lower than or equal to the highest pileup order are considered.

Abstract: An apparatus and method of processing X-ray projection data obtained using photon-counting detectors and having multiple spectral components. The processing of the projection data includes correcting for nonlinear detector response, where the detector response model includes: pileup, ballistic deficit effects, polar effects, and characteristic X-ray escape. The processing of the projection data also includes a material decomposition mapping the projection data from spectral components into material components corresponding to high-Z and low-Z materials. The material decomposition includes a noise balancing process where the allocation of spectral components between a high-energy and a low-energy combination of spectral components is adjusted such that both high- and low-energy components have signal-to-noise ratios of similar magnitude. For computed tomography (CT) applications, material decomposition can be followed by image reconstruction and then image post-processing and presentation.

Abstract: Calibrating a photon-counting detector can include receiving a reference signal, by circuitry, where the reference signal is measured by a reference detector that measures an output from an X-ray tube. Determining circuitry can then determine, for a detector channel of the photon-counting detector, a mapping between a first true count rate on the detector channel without an object and the reference signal in accordance with a linear relationship between the reference signal and the first true count rate, based on a measured count rate on the detector channel and a predefined relationship between the first true count rate and the measured count rate.

Abstract: An apparatus is provided to reconstruct an image using combined third-generation energy-integrating computed tomography projection data and fourth-generation spectrally resolved computed tomography projection data. The apparatus includes processing circuitry configured to obtain first projection data representing projection data from an energy-integrating detector; obtain second projection data representing projection data from a photon-counting spectrally discriminating detector; and reconstruct a first combined-system basis image and a second combined-system basis image by solving a combined-system matrix equation using the first projection data and the second projection data.

Abstract: This disclosure relates to personalizing user interface (UI) elements of online content (a website, a mobile application, etc.) presented on a user device. The UI personalization technique may include, for a current online session, processing user-related data and context-related data to determine the UI element(s) and their attribute value(s) to be used for presentation of the online content during the current session. The user-related data include information regarding the user/user device, and the context data may include details about the online content (content type/topic, default UI attribute values, etc.) being accessed in the given online session. The user data and the context data may be processed based on modeling data related to users and their interaction with the UI of online content from different publishers and/or advertisers. Based on such processing, personalized UI element(s) and attribute values are determined and the online content is presented with the personalized UI.

Abstract: A computed tomography (CT) apparatus and a method for identifying photon-counting detectors that are polarized due to high flux, thereby rendering the photon-counting detector inoperable. The data obtained from the photon-counting detectors that are determined to be polarized is skipped during an image pre-reconstruction phase. The data is further assigned a weight of zero during an image reconstruction phase in order to avoid imaging artifacts in the reconstructed CT image.

Abstract: A computed tomography (CT) apparatus and a method for reducing computational complexity in reconstructing a region of interest within an image is provided. The CT apparatus includes a processing circuit that obtains scan data from a scan of an object and computes a system matrix for one view angle of an X-ray source. The system matrix maps an image of the object represented on a circular, symmetric grid to the scan data of the object. Further, the processing circuit reconstructs the image iteratively until a predetermined stopping criterion is satisfied using the scan data and the computed system matrix and generates a sinogram of the reconstructed image based on a forward-projection model. The processing circuit analytically reconstructs a region of interest using the generated sinogram and a predetermined reconstruction kernel.

Abstract: A method and apparatus of aligning calibration projection data with object projection data to improve calibration corrections of the object projection data. In a first implementation, the method interpolates and upsamples both the calibration and object data, then shifts the upsampled calibration data to match a sub-view angular offset of the object data, and then performs calibration corrections before down-sampling the corrected object data. In a second implementation, the method continuously scans an object space—with the object absent (present) in the object space—to obtain calibration data (object absent) and object data (object present) both having the same sub-view angular offset. In a third implementation, the method obtains multiple scans having different sub-view angular offsets, organizes the scans into bins according to their respective sub-view angular offsets, and chooses the appropriate sub-view angular offsets bin for calibration corrections of the object data.

Abstract: An apparatus and method for controlling movement of a plurality of fixed detectors arranged in a computed tomography (CT) system that includes a rotating X-ray source. The method including obtaining a view angle of the X-ray source, determining a tilt angle for a detector of the plurality of detectors that is within a scan field-of-view of the X-ray source at the obtained view angle so that an outer face of the detector directly faces the X-ray source, and causing the detector to be moved to the determined tilt angle.