Abstract: A switching power converter is provided that communicates with a mobile device to receive a value of a load detection current. The switching power converter adjusts the cycling of a power switch until a constant current mode of operation is entered with a known output current driving the mobile device. The switching power converter subtracts the load current from the output current to measure a soft-short circuit current.

Abstract: A fan guard includes a guard housing and a plurality of guard blades. The guard housing includes an outer tunnel wall forming a housing aperture to permit air to flow across the guard housing. The guard blades are disposed in the housing aperture. Each of the guard blades extend from the guard housing towards a center of the housing aperture. Each guard blade at least partially overlaps an adjacent guard blade. Each of the guard blades are droplet shaped.

Abstract: An ultrasound diagnosis apparatus according to an embodiment includes an obtaining unit, an image generating unit, and a controlling unit. The obtaining unit obtains setting information in which a plurality of types of ultrasound image data are set as display-purpose image data and in which a percentage of a time period to display the display-purpose image data is set for each of the plurality of types. The image generating unit generates, along a time series, each of the plurality of types of ultrasound image data set in the setting information. The controlling unit exercises control so that the plurality of types of ultrasound image data generated by the image generating unit are stored into a storage unit and exercises control so that the display-purpose image data is displayed on a display unit according to the percentage set in the setting information for each of the types.

Abstract: An ultrasonic diagnosis apparatus includes a position detector, and control circuitry. The position detector detects a position in a three-dimensional space of one of an ultrasonic image and an ultrasonic probe. The control circuitry uses a vivisection view defined in a three-dimensional space. The control circuitry associates a structure related to a subject included in the ultrasonic image with a structure included in the vivisection view using a position and orientation in a first three-dimensional coordinate system of the structure related to the subject included in the ultrasonic image and a position and orientation in a second three-dimensional coordinate system of the structure included in the vivisection view.

Abstract: A link rotor head and an unmanned aerial vehicle are disclosed. The link rotor head includes a main shaft, a rotor hub arranged at an upper end of the main shaft, a rotor assembly rotatably arranged on the rotor hub, a swashplate assembly movably arranged around the main shaft, and a link assembly. The swashplate assembly drives the rotor assembly to rotate via the link assembly. The link assembly includes a phase link, a phase rocker and a pitch link. The phase rocker is rotatably arranged on the rotor hub, with one end of the phase rocker movably connected with the swashplate assembly via the phase link and with an other end of the phase rocker movably connected with the rotor assembly via the pitch link.

Abstract: A chip includes a processor, a memory, and a storage controller of the memory. There is an access path between the processor and the storage controller, and the processor reads data from or writes data into the memory by using the storage controller through the access path. The chip further includes a shielding circuit. The shielding circuit is configured to shield a signal on the access path when the processor is powered off.

Abstract: An image processing method and apparatus, a device and a computer-readable storage medium, wherein the method includes: acquiring a plurality of critical points of regions of an original image, wherein the regions correspond to different body parts in a portrait; according to the plurality of critical points of the regions, determining shape-context-histogram features of the regions of the original image; according to the shape-context-histogram features of the regions of the original image and shape-context-histogram features of predetermined source-material region images of corresponding regions, determining a plurality of cost matrixes for the regions; according to the plurality of cost matrixes for the regions, screening source-material region images that match with each of the regions of the original image from the source-material region images; and splicing the source-material region images that match with each of the regions of the original image, to obtain a target image corresponding to the original

Abstract: An ultrasonic diagnostic apparatus according to an embodiment includes a candidate-position extracting circuitry and a position setting circuitry. The candidate-position extracting circuitry extracts a first position through comparison of a fundamental wave component between a plurality pieces of image data collected by performing ultrasonic scanning on a subject injected with a contrast agent. The candidate-position extracting circuitry also extracts a second position through comparison of a harmonic component between the pieces of image data. The position setting circuitry sets the first position or the second position as a position of a region of interest where predetermined analysis is performed in at least one image data of the pieces of image data.

Abstract: A living body detection method and system, and a computer-readable storage medium are disclosed. The living body detection method includes: acquiring a video including an object to be detected; extracting at least two images to be detected from the video, and determining optical flow information according to the at least two images to be detected; dividing each image to be detected into a foreground image and a background image according to the optical flow information; using a classifier to perform category judgment on the foreground image and the background image to obtain a category distribution of the foreground image and a category distribution of the background image; and obtaining a probability that the object to be detected is a living body according to the category distribution of the foreground image and the category distribution of the background image.

Abstract: In one embodiment, an ultrasonic diagnostic apparatus includes a probe configured to be equipped with plural transducers arranged in a first direction and a second direction perpendicular to the first direction and be able to perform a two-dimensional scan in the first and second directions; a moving device configured to support the probe and mechanically move the probe in the second direction; a receiving circuit configured to generate first reception signals for respective moving positions of the probe in the second direction by performing receiving phase-compensation and summation processing on respective reflected signals received by the plurality of transducers at each of the moving positions; and processing circuitry configured to generate a second reception signal by performing moving aperture synthesis on the first reception signals generated for the respective moving positions of the probe based on positional information of the probe and generate image data from the second reception signal.

Abstract: The present disclosure provides a control system and a control method for a double data rate synchronous dynamic random access memory (DDR) system in order to reduce power consumption of the DDR system. The system includes a memory and a processor coupled to the memory, and the processor is configured to monitor a working status of each functional system that shares a power domain with the DDR system, determine a target power parameter value and a target clock parameter value of the DDR system according to the working status of each functional system, and control a power parameter and a clock parameter of the DDR system according to the target power parameter value and the target clock parameter value of the DDR system.

Abstract: A chip includes a processor, a memory, and a storage controller of the memory. There is an access path between the processor and the storage controller, and the processor reads data from or writes data into the memory by using the storage controller through the access path. The chip further includes a shielding circuit. The shielding circuit is configured to shield a signal on the access path when the processor is powered off.

Abstract: Disclosed are a training method and apparatus for a CNN model, which belong to the field of image recognition. The method comprises: performing a convolution operation, maximal pooling operation and horizontal pooling operation on training images, respectively, to obtain second feature images; determining feature vectors according to the second feature images; processing the feature vectors to obtain category probability vectors; according to the category probability vectors and an initial category, calculating a category error; based on the category error, adjusting model parameters; based on the adjusted model parameters, continuing the model parameters adjusting process, and using the model parameters when the number of iteration times reaches a pre-set number of times as the model parameters for the well-trained CNN model. After the convolution operation and maximal pooling operation on the training images on each level of convolution layer, a horizontal pooling operation is performed.

Abstract: A living body detection method and system, and a computer-readable storage medium are disclosed. The living body detection method includes: acquiring a video including an object to be detected; extracting at least two images to be detected from the video, and determining optical flow information according to the at least two images to be detected; dividing each image to be detected into a foreground image and a background image according to the optical flow information; using a classifier to perform category judgment on the foreground image and the background image to obtain a category distribution of the foreground image and a category distribution of the background image; and obtaining a probability that the object to be detected is a living body according to the category distribution of the foreground image and the category distribution of the background image.

Abstract: A voltage regulation circuit includes an obtainer that is configured to obtain load information of a corresponding load and output the load information to a corresponding controller. The corresponding controller generates a switch control signal based on the load information and outputs the switch controller to at least one switch. The at least one switch regulates, based on the accurate switch control signal, a voltage input to the corresponding load.

Abstract: Provided are an image processing method and a client device, an image authentication method and a server device. The image processing method comprises: photographing an object to obtain a first image; sending a key acquiring request to a server and receiving a key from the server; generating a second image based on the key and the first image; and sending the second image to the server. The image authentication method comprises: receiving a key acquiring request from a client; generating a key and sending the key to the sever in response to the key acquiring request; receiving an image for authentication from the client; and authenticating the image for authentication by using the key.

Abstract: There are provided a focusing point determining method and apparatus. The focusing point determining method comprises: obtaining a view-finding image within a view-finding coverage; identifying a significance area in the view-finding image; and extracting at least one focusing point from the identified significance area. By identifying the significance area in the view-finding image and extracting at least one focusing point from the identified significance area, the focusing point determining method and apparatus can ensure accuracy of a selected focusing point to a certain extent, so as to ensure accuracy of focusing.

Abstract: Embodiments of this disclosure belong to the field of computer technologies and disclose a method and an apparatus for recognizing a character string in an image.

Abstract: Example methods and terminals, including a CPU and an auxiliary processor, are disclosed. One example method includes, in a switch-on process of the terminal and after completing system initialization, determining, by the auxiliary processor, a minimum working voltage of the CPU. The auxiliary processor can then set a current voltage of the CPU to the minimum working voltage. The CPU, at the minimum working voltage, can then complete the switch-on process of the terminal and control the terminal to work.

Abstract: The present disclosure provides a control system and a control method for a double data rate synchronous dynamic random access memory (DDR) system in order to reduce power consumption of the DDR system. The system includes a memory and a processor coupled to the memory, and the processor is configured to monitor a working status of each functional system that shares a power domain with the DDR system, determine a target power parameter value and a target clock parameter value of the DDR system according to the working status of each functional system, and control a power parameter and a clock parameter of the DDR system according to the target power parameter value and the target clock parameter value of the DDR system.