Abstract: The present disclosure discloses an audio playback method, an audio playback device, a computer-readable storage medium. The audio playback method includes: obtaining a noise signal; obtaining a noise canceling signal by performing a noise reduction process on the noise signal; and playing a low-frequency portion of the noise canceling signal through a first speaker.

Abstract: Distributed rendering of digital objects in augmented reality environments includes a method, system, and computer program product that are configured to: receive a first space matrix from a first augmented reality (AR) device; receive a second space matrix from a second AR device; perform distributed rendering of a digital object for the first AR device and the second AR device in response to receiving the first space matrix and the second space matrix; transmit first image data to the first AR device, the first image data defining the first version of the first part of the digital object and the second part of the digital object; and transmit second image data to the second AR device, the second image data defining the second version of the first part of the digital object and the second part of the digital object.

Abstract: The present disclosure provides an image processing method and apparatus. The method comprises: obtaining an RGB image and a stencil buffer, wherein the RGB image comprises image information taken by a physical camera and image information rendered by a virtual object rendering module, and the stencil buffer is used for storing stencil values corresponding to pixels on the RGB image; obtaining a target image by processing the RGB image according to the stencil buffer; obtaining a post-processed image by post-processing the target image; determining an image to be displayed according to the post-processed image. In this way, the post-processing object is flexible and controllable. The user therefore has a stronger sense of participation and a better experience.

Abstract: The present disclosure relates to the technical field of video processing, and relates to a video processing method and apparatus, and an electronic device. The method comprises: first acquiring key frames, which correspond to transition images, in a video; next, determining splitting nodes for the video according to the key frames corresponding to the transition images; then, splitting the video according to the splitting nodes for the video, so as to obtain video fragments; and finally performing video parallel processing on the basis of the video fragments.

Abstract: A model processing method is provided and applied to the field of artificial intelligence (AI) technologies. In the method, a new obfuscation computing node is added on the basis of original computation logic of an AI model, an execution relationship between an original computing node and the obfuscation node is determined by using an expression, and a correct computing node can be executed only when an output of the expression is correct. In this way, an operator execution sequence and dependency relationship in the original model can be obscured by using the newly added obfuscation node, to scramble a model structure.

Abstract: A power module includes first and second electrode terminals adapted to electrically connect to a power source, a first switch element, a second switch element, a first Kelvin source pin, and a second Kelvin source pin. The first switch element is electrically connected to the first electrode terminal. The second switch element is electrically connected between the first switch element and the second electrode terminal and includes a drain and a source electrically connected to the first switch element and the second electrode terminal respectively. The first Kelvin source pin is electrically connected to the source of the second switch element and is adapted to receive a gate drive signal for driving the second switch element. The second Kelvin source pin is electrically connected to the source of the second switch element and is configured to be electrically connected to a snubber circuit.

Abstract: Provide is a friction pair device comprising a friction pair stationary member, a plurality of micro channels, a Tesla valve structure, and a stress application device. The friction pair stationary member includes a friction pair static surface, which friction pair static surface is provided with a dynamic pressure groove. The dynamic pressure groove includes a dynamic pressure groove bottom. A surface of the dynamic pressure groove bottom is provided with micro-nano scale gaps. A super-lubricant is injected into the gaps to form a super-lubricant layer, allowing liquid medium molecules of a liquid-film to move freely along the dynamic pressure groove bottom. A slip velocity of the liquid medium molecules approaches a moving velocity of a friction pair dynamic surface, a slip length of the liquid medium molecules approaches positive infinity, and a super slip surface is formed on the dynamic pressure groove bottom.

Abstract: Disclosed in the present application are a fluff rendering method and apparatus, and a device and a medium. When fluff rendering needs to be performed on an object to be rendered, a fluff rendering parameter of the object is acquired, wherein the fluff rendering parameter includes one or more modeling parameters for fluff, and each modeling parameter in the one or more modeling parameters corresponds to one fluff modeling effect; and after the fluff rendering parameter is acquired, the object is rendered according to the fluff rendering parameter, so as to obtain a fluff model of the object. Therefore, in the embodiments of the present application, by means of acquiring a plurality of fluff modeling parameters in advance to render fluff of a plurality of models, the diversification of fluff models is improved.

Abstract: A method and apparatus, a device, and a medium for model processing is provided. The model processing method includes in response to a photographing instruction for a target object in a virtual three-dimensional scene, obtaining a two-dimensional image of the target object, and storing the two-dimensional image in a specified position; wherein the target object is a three-dimensional model located in a first position in the virtual three-dimensional scene; obtaining an initial model parameter of the target object; and in response to a three-dimensional restoration instruction for the two-dimensional image stored in the specified position, restoring the target object in a second position in the virtual three-dimensional scene according to the three-dimensional restoration instruction and the initial model parameter, and wherein the three-dimensional restoration instruction is used for indicating the second position.

Abstract: Distributed rendering of digital objects in augmented reality environments includes a method, system, and computer program product that are configured to: receive a first space matrix from a first augmented reality (AR) device; receive a second space matrix from a second AR device; perform distributed rendering of a digital object for the first AR device and the second AR device in response to receiving the first space matrix and the second space matrix; transmit first image data to the first AR device, the first image data defining the first version of the first part of the digital object and the second part of the digital object; and transmit second image data to the second AR device, the second image data defining the second version of the first part of the digital object and the second part of the digital object.

Abstract: A computer-implemented method for providing a user with a digital companion in a three-dimensional (3D) environment is provided. The computer-implemented method includes recognizing content of the 3D environment, obtaining a point-of-view (POV) of the user in the 3D environment, displaying the digital companion to the user in the 3D environment based on the content and the POV, moving the digital companion through the 3D environment with the user while continuing the displaying and executing communicative interaction between the digital companion and the user based on the content and one or more communications of the user.

Abstract: The present disclosure provides an image processing method and apparatus. The method comprises: obtaining an RGB image and a stencil buffer, wherein the RGB image comprises image information taken by a physical camera and image information rendered by a virtual object rendering module, and the stencil buffer is used for storing stencil values corresponding to pixels on the RGB image; obtaining a target image by processing the RGB image according to the stencil buffer; obtaining a post-processed image by post-processing the target image; determining an image to be displayed according to the post-processed image. In this way, the post-processing object is flexible and controllable. The user therefore has a stronger sense of participation and a better experience.

Abstract: The present disclosure discloses an audio playback method, an audio playback device, a computer-readable storage medium. The audio playback method includes: obtaining a noise signal; obtaining a noise canceling signal by performing a noise reduction process on the noise signal; and playing a low-frequency portion of the noise canceling signal through a first speaker.

Abstract: Provided is a hybrid speaker. The hybrid speaker includes a low-frequency portion and a high-frequency portion. The low-frequency portion is configured to output mid-frequency sound or low-frequency sound. The low-frequency portion includes a moving-coil unit-structure, and the moving-coil unit-structure includes a magnetic driving portion. the high-frequency portion is configured to output high-frequency sound, and the high-frequency portion includes a balanced- diaphragm unit-structure; and the balanced-diaphragm unit-structure is configured as the magnetic driving portion of the moving-coil unit-structure. A sound reproduction device having a loudspeaker is also provided.

Abstract: A power module includes first and second electrode terminals adapted to electrically connect to a power source, a first switch element, a second switch element, a first Kelvin source pin, and a second Kelvin source pin. The first switch element is electrically connected to the first electrode terminal The second switch element is electrically connected between the first switch element and the second electrode terminal and includes a drain and a source electrically connected to the first switch element and the second electrode terminal respectively. The first Kelvin source pin is electrically connected to the source of the second switch element and is adapted to receive a gate drive signal for driving the second switch element. The second Kelvin source pin is electrically connected to the source of the second switch element and is configured to be electrically connected to a snubber circuit.

Abstract: Content presented on a display screen is updated responsive to a user input. Content is retrieved and segmented into bands that are rendered onto the display screen incrementally to provide a visual effect similar to an animation. A band is rendered at a starting location and after a refresh interval passes a subsequent band is rendered at a second starting location. The bands may be rendered until the content is shown on the display screen.

Abstract: A radiatively cooled solar array, including a downwardly-facing solar cell and a mirror positioned below the solar cell and oriented to direct sunlight onto the solar cell. The assembly also includes a heat sink in thermal communication with the solar cell and disposed opposite the mirror. The heat sink is in radiative communication through Earth's atmosphere with outer space.

Abstract: A method and apparatus for monitoring a vehicle, a cloud control platform, and a system for vehicle-road collaboration are provided. The method includes: acquiring real-time driving data of each vehicle in a preset vehicle set; matching, in response to receiving event information of an event occurring on a driving road of a vehicle in the preset vehicle set, the event information with the real-time driving data of each vehicle in the preset vehicle set to determine a target vehicle involved in the event; and acquiring video information of the target vehicle during occurrence of the event based on the event information.