Abstract: A surveillance method, apparatus, system, electronic device and computer-readable storage medium are provided. In the surveillance method, a non-visible light image and a target image are obtained, wherein the target image is generated from a visible light signal captured during a capture period of the non-visible light image. The method then detects whether an object is present in the non-visible light image. When an object is detected in the non-visible light image, a second location area of the object in a visible light image is determined according to a first location area of the object in the non-visible light image, such that surveillance of the object is implemented based on the visible light image, wherein the visible light image is an image determined based on the target image.

Abstract: This document describes a system and method for generating two types of session keys for encoding digital communications between two devices. In particular, the first type of session key possesses escrow properties whereby a trusted third party will be able to generate the first type of session key to decode the digital communications between the two devices while the second type of session key does not possess escrow properties.

Abstract: Provided are a computer-implemented method, a system, and a computer program product. The method comprises extracting features from a plurality of base models in an ensemble model. The plurality of base models are configured to provide respective prediction results. The ensemble model is configured to provide an overall prediction result from the prediction results of the plurality of base models. The features are associated with time performance of the base models. The method further comprises clustering the plurality of base models into a plurality of clusters based on the extracted features. The method further comprises assigning the plurality of base models to a plurality of parallel computation units based on the plurality of clusters.

Abstract: In an approach to mitigating model drift, one or more computer processors create an ensemble model set (EMS) comprising one or more component models, wherein each component model in the EMS is trained utilizing at least one of the following: a distinct algorithm, technique, and hybrid data chunk; calculate a set of weights for each component model in the EMS; responsive to detecting model drift, create a new component model based on a new hybrid data chunk and adding the new component model to the EMS; recalculate the set of weights for each component model in the EMS utilizing one or more evaluation techniques compared against the new hybrid data chunk; predict a final prediction by aggregating one or more predictions from one or more component models in a set of selected top component models between subsequent model drifts.

Abstract: A trolley configured for use to carry folding tables of a variety of sizes. The trolley includes a loading end, a trolley frame, and an extension gate adjustably connected to the trolley frame so as to be adjustable relative to the loading end of the trolley in a length direction of the trolley. The extension gate includes an elongate member slidingly disposed on the trolley frame and a rotatable portion that is foldable relative to the elongate member and lockable in an upright position by a lock. The rotatable portion may be positioned in an extended position from the loading end of the trolley, in a retracted position adjacent the loading end of the trolley, and in positions that are intermediate to the extended position and the retracted position. The elongate member may slide in a first direction to extend the rotatable portion away from the loading end of the trolley and in a second direction to retract the rotatable portion toward the loading end of the trolley.

Abstract: The disclosure relates to technology for a navigation system that enhances the safety of drivers using fatigue detection mapping. The navigation system accesses data sources storing map data a route for drivers of one or more first vehicles. Based on the map data, a personalized fatigue map for a driver of a second vehicle is generated based on the map data. The personalized fatigue map displays predicted driver fatigue of the driver of the second vehicle on the route. Drivers in the first and second vehicles are monitored to detect driver fatigue and a level of the driver fatigue is measured according to a calculated fatigue score. When driver fatigue is detected, a recommendation is output to the driver of the second vehicle that is based on the level of the driver fatigue. The personalized fatigue map is updated to reflect the recommendation.

Abstract: Embodiments of the present invention relate to a method, system and computer program product for histogram generation. In an embodiment, a first set of bins are acquired for a histogram based on the plurality of data points. In response to receiving a data point, a bin closest to the data point is determined from the first set of bins. In response to a distance between the data point and the bin not exceeding a threshold, the data point is merged into a target bin of the first set of bins, where the width of the target bin after merging the data point is closest to an average width of the first set of bins before the merging. In other embodiments, a system and a computer program product are disclosed.

Abstract: A filtering model training method includes obtaining N original syllables, obtaining N recognized syllables, and obtaining N syllable distances based on the N original syllables and the N recognized syllables, where the N syllable distances are in a one-to-one correspondence with N syllable pairs, the N original syllables and the N recognized syllables form the N syllable pairs, each syllable pair includes an original syllable and a recognized syllable that correspond to each other, and each syllable distance is used to indicate a similarity between an original syllable and a recognized syllable that are included in a corresponding syllable pair.

Abstract: The disclosure relates to technology for determining vehicle environment interaction metrics and/or passenger behavioral metrics for autonomous vehicles in a driving environment. A group of one or more autonomous vehicles independently determine a VEI score for a target vehicle within a predefined vicinity of the group of one or more vehicles. A target vehicle may determine a VPB score based on passengers within the target vehicle. VEI scores and/or VPB scores determined for a target vehicle may be used by the target vehicle to reinforce and/or correct driving actions of the target vehicle.

Abstract: A method for authenticating a connection between a user device and a vehicle includes sending, by the vehicle, a first wireless signal through a connection channel, receiving, by the vehicle, a second wireless signal through the connection channel, and acquiring, by the vehicle, a second signal strength sequence from second N continuous signal strength characteristics (PFVeh) of the second wireless signal, receiving, by the user device from the vehicle, the first wireless signal, acquiring a first signal strength sequence from first N continuous signal strength characteristics (PFUDev) of the first wireless signal, and communicating, by the user device, the first signal strength sequence to the vehicle.

Abstract: A trolley configured for use to carry folding tables of a variety of sizes. The trolley includes a loading end, a trolley frame, and an extension gate adjustably connected to the trolley frame so as to be adjustable relative to the loading end of the trolley in a length direction of the trolley. The extension gate includes an elongate member slidingly disposed on the trolley frame and a rotatable portion that is foldable relative to the elongate member and lockable in an upright position by a lock. The rotatable portion may be positioned in an extended position from the loading end of the trolley, in a retracted position adjacent the loading end of the trolley, and in positions that are intermediate to the extended position and the retracted position. The elongate member may slide in a first direction to extend the rotatable portion away from the loading end of the trolley and in a second direction to retract the rotatable portion toward the loading end of the trolley.

Abstract: The present invention provides N-acetyl derivatives of sialic acids, including N-acetyl derivatives of Neu5Ac and Neu5Gc. Methods for preparing related precursors and a variety of sialosides are also disclosed.

Abstract: The present application discloses a method and an apparatus for displaying an image based on privacy masking, which belong to the field of video monitoring. The method includes: acquiring a to-be-masked original image provided by an image capture terminal and privacy masking area information of the original image; wherein, the privacy masking area information is obtained by identifying the original image or is obtained from the image capture terminal and indicates an area in the original image which is required to be masked; determining whether the original image is required to be privacy-masked based on whether privacy unmasking permission information is stored; if the original image is required to be privacy-masked, performing privacy-masking on the original image based on the privacy masking area information to obtain a masked image, and displaying the masked image.

Abstract: The present disclosure provides a liquid crystal antenna unit, including: a first substrate; a second substrate disposed opposite to the first substrate; a liquid crystal layer disposed between the first substrate and the second substrate; an antenna unit disposed on a side of the first substrate facing away from the liquid crystal layer; and an antenna control unit disposed corresponding to the antenna unit and configured to control ON/OFF of the antenna unit. The present disclosure further provides a liquid crystal phased array antenna and a phase calibration method.

Abstract: A computer-implemented method of detecting distracted driving comprises: determining, by one or more processors, a primary preview region (PPR) in a representation of an environment; determining, by the one or more processors, a gaze point for a driver based on a sequence of images of the driver; determining, by the one or more processors, that the gaze point is outside of the PPR; based on the determined gaze point being outside of the PPR, decreasing, by the one or more processors, an attention level for the PPR; based on the attention level for the PPR, generating, by the one or more processors, an alert.

Abstract: The disclosure relates to technology within an autonomous vehicle for interacting with passengers to provide information about their surroundings as they travel within the autonomous vehicle. In one example, the system may automatically detect and push information about points of interest in the vicinity of the vehicle to the vehicle passengers. In another example, the system provides information about points of interest around the autonomous vehicle in response to physical and/or verbal cues from a passenger in the autonomous vehicle.

Abstract: A phase shifter is provided to include: a first substrate, a second substrate, a dielectric layer, a transmission line, a ground electrode and at least one auxiliary electrode, where the first substrate and the second substrate are opposite to each other, the dielectric layer is between the first substrate and the second substrate, the transmission line is between the second substrate and the dielectric layer, the auxiliary electrode is between the first substrate and the dielectric layer, and the ground electrode is on a side of the second substrate distal to the dielectric layer; a dielectric constant of the dielectric layer changes with a voltage between the auxiliary electrode and the transmission line; an orthographic projection of the transmission line on the first substrate overlaps with an orthographic projection of the auxiliary electrode on the first substrate.

Abstract: An electric machine and internal combustion engine are coordinated to provide traction control for an automotive vehicle. A propulsive torque limit is set by a controller during a loss of traction. When the machine torque limit is greater than the propulsive torque limit, the engine is pulled down. When the machine torque is less than the propulsive torque limit, the engine is pulled up. The controller coordinates the pulled up engine with the machine such that the engine is subordinated to the machine.

Abstract: A computer-implemented method for estimating head pose angles of a user includes determining a first rotation between a first head pose axis associated with a first image of a plurality of images of the user and a camera axis associated with a camera taking the images. A second rotation is determined between a second head pose axis associated with a second image of the user and the camera axis. The first and second head pose axes are determined based on light reflections within the plurality of images. A head pose angle of the user can be estimated based on the first rotation and the second rotation. An alert can be generated based on the estimated head pose angle.

Abstract: Embodiments of the present application disclose an image dehazing method and an image acquiring apparatus implementing image dehazing. In the embodiments of the present application, an RGBIR sensor can be adopted to generate a first RGBIR image and a second RGBIR image, such that the generated images are color images and contain infrared information; thus a finally generated image thus has a good dehazing effect; in addition, the image acquiring apparatus adjusts the first exposure time length and the second exposure time length based on the first RGBIR image and the second RGBIR image generated during each exposure, causing the RGB components and the IR component in the image to be balanced, which guarantees the display effect of the finally generated dehazed image.