Abstract: The present disclosure provides a heat dissipation housing for an AC power adapter, including a housing and a heat sink disposed on an inner surface of the housing, and integrally formed with the housing. The heat sink includes an upper surface which is in close contact with the housing, and a lower surface which is exposed to the inside of the heat dissipation housing. The heat sink includes at least one securing structure which is formed by the upper surface of the heat sink.

Abstract: Disclosed is a method and an apparatus for tracking a motion trajectory of jaw bone, a device and a medium. The method includes: a first jaw bone three-dimensional model of a user is acquired; the motion trajectory of the preset identification point is acquired, and the identification point is disposed at jaw bone of the user; and the motion trajectory of the first jaw bone three-dimensional model is determined according to the motion trajectory of the identification point, for tracking the motion trajectory of jaw bone of the user.

Abstract: A scanning method and system of a scanning rod, and a storage medium. The method includes: scanning a scanned scene in a first scanning rod assembling status to obtain first scanning data; scanning the scanned scene in a second scanning rod assembling status to obtain second scanning data; and obtaining position information of assembly sites in the scanned scene based on the first scanning data and the second scanning data. By using a batch scanning manner in the present disclosure, the scanning rods are installed at a third assembly site and a first assembly site for scanning to obtain the first scanning data; the scanning rods are installed at the third assembly site and a second assembly site for scanning to obtain the second scanning data.

Abstract: In an embodiment a method for manufacturing an optoelectronic device includes depositing a first layer having a first dopant concentration of a first doping type, depositing an active region on the first layer, and depositing a second layer having a second dopant concentration of a second doping type on the active region, wherein depositing the active region includes depositing a plurality of alternating barrier layers including Inx(GayAl1-y)1-xN and quantum well layer including Inx(GayAl1-y)1-xN, with x, y as parameters in an interval of [0;1], respectively and x+y=1, wherein an aluminum content in a barrier layer is higher than in a quantum well layer and doping the barrier layers with silicon during deposition of a barrier layer material such that a subset of the plurality of barrier layers has a higher silicon dopant concentration than remaining barrier layers.

Abstract: A transfer apparatus for knitting machinery includes a transfer disk with a plurality of transfer needles distributed circumferentially. Each transfer needle is suspended from the bottom of the transfer disk via a sliding block and rail structure and is configured to move horizontally in a radial direction. A force-receiving portion on each needle extends through a groove to the top of the transfer disk. At least three radial push plates, distributed circumferentially at the top of the transfer disk and connected to a radial driving mechanism, act on the force-receiving portions to push the needles radially outward. Each transfer needle further includes a return force-applying portion. The sliding block and rail structure constrains the needles to horizontal radial movement relative to the transfer disk.

Abstract: Techniques and apparatuses are described that implement multi-rate processing for active noise cancellation. Instead of performing active noise cancellation using a single processing rate, multi-rate processing utilizes multiple processing paths associated with multiple processing rates. With the multiple processing rates, active-noise-cancellation circuitry can avoid the tradeoff between responsiveness (e.g., latency) and power efficiency (e.g., power consumption) that is associated with a single processing rate and instead be tailored for both responsiveness and power efficiency. To overcome the tradeoff, at least one of the processing paths has a processing rate that facilitates responsiveness and at least one other processing path has a processing rate that facilitates power efficiency. In this way, the described techniques for multi-rate processing enables the active-noise-cancellation circuitry to realize both a target level of responsiveness and a target power efficiency.

Abstract: Techniques and apparatuses are described that implement multi-domain processing for active noise cancellation. Instead of performing active noise cancellation based on a single domain type, multi-domain processing utilizes multiple processing paths associated with different domain types. In particular, active-noise-cancellation circuitry includes at least one first processing path associated with a pulse-density-modulation domain and at least one second processing path associated with a pulse-code-modulation domain. In an example implementation, the first processing path is associated with a responsive processing rate while the second processing path is associated with a power-efficient processing rate. The pulse-density-modulation domain enables a tunable filter within the at least one first processing path to be designed in a manner that reduces power consumption.

Abstract: The present disclosure provides a method for identifying foreign object for an intraoral scanner. The method includes obtaining an intraoral scanned image of a target user by scanning an oral cavity of the target user using an intraoral scanner. A target identification parameter for identifying a scanning head window on the intraoral scanner is determined based on the intraoral scanned image. A lens of the scanning head window is obstructed by a foreign object determined by performing a foreign object identification analysis based on the target identification parameter.

Abstract: Embodiments of the present disclosure provide a three-dimensional reconstruction method. Mark points are set on a surface of a target object. Then, multiple frames of mark point three-dimensional point cloud are reconstructed based on image frames containing a mark point pattern, and multiple frames of target object three-dimensional point cloud are reconstructed based on image frames containing a structured light pattern. As a coordinate transformation relationship between the multiple frames of the three-dimensional point cloud can be accurately determined, and a coordinate transformation relationship between a single frame of the mark point three-dimensional point cloud and a single frame of the target object three-dimensional point cloud can also be determined, the mark points can further be used to assist in stitching the multiple frames of the target object three-dimensional point cloud, to obtain a more accurate stitching result.

Abstract: A three-dimensional scanning method, apparatus and system, and a device and a medium are provided. The system includes: a three-dimensional scanning apparatus, a service end, and a plurality of display terminals. The service end is separately connected to the three-dimensional scanning apparatus and each of the display terminals. Each of the display terminals is arranged at a target position. Anyone of the display terminals is configured to send a three-dimensional scanning request to the service end. The service end is configured to send a three-dimensional scanning instruction to the three-dimensional scanning apparatus based on the three-dimensional scanning request. The three-dimensional scanning apparatus is configured to perform scanning based on the three-dimensional scanning instruction to obtain three-dimensional scanning data. and send the three-dimensional scanning data to the service end.

Abstract: Embodiments of the present disclosure relate to a method and apparatus for processing scanning data, an electronic device, and a medium. The method includes: obtaining a plurality of scanned images including auxiliary feature points; and processing the plurality of scanned images to obtain three-dimensional coordinate points of the auxiliary feature points, and generating target scanning data based on the three-dimensional coordinate points of the auxiliary feature points and point cloud data.

Abstract: A method and apparatus for matching gingival data, and a device are provided. The method includes: acquiring first data of an oral cavity in a first state, the first data including three-dimensional data of a gingiva; acquiring second data of the oral cavity in a second state, the second data including three-dimensional data of a mark point of the scanning rod mounted on a implant and scanning data corresponding to a scanning area, the scanning data including data of a gingiva and the mark point of the scanning rod in the scanning area; and performing a splicing operation on the three-dimensional data of the gingiva and the three-dimensional data of the mark point according to the scanning data of the scanning area to acquire matched data of the gingiva and the scanning rod.

Abstract: Provided are a method and an apparatus for three-dimensional reconstruction. The method includes: acquiring a first image and a second image, wherein the first image and the second image are obtained by respectively collecting a target image by a pre-calibrated binocular camera; respectively determining positions of feature points in the first image and the second image, and respectively determining a plurality of first adjacent domains corresponding to the feature points in the first image and a plurality of second adjacent domains corresponding to the feature points in the second image; matching the feature points in the first image with the feature points in the second image one to one according to matching degree between the first adjacent domains and the 10 second adjacent domains; and performing three-dimensional reconstruction of an object to be measured according to matched feature points in the first image and the second image.

Abstract: The present disclosure relates to a data processing method, an electronic device, and a storage medium. The method includes: acquiring a plurality of closing motion trajectories of a mandible of a user; acquiring a plurality of intersection points between each of a plurality of preset planes and the plurality of closing motion trajectories; determining the highest density point from the plurality of intersection points for each preset plane; and obtaining a muscular closure path by connecting the multiple highest density points corresponding to the plurality of the preset planes.

Abstract: The present disclosure provides a scanning method and system of a scanning rod, and a storage medium. The method includes: scanning a scanned scene in a first scanning rod assembling status to obtain first scanning data; scanning the scanned scene in a second scanning rod assembling status to obtain second scanning data; and obtaining position information of assembly sites in the scanned scene based on the first scanning data and the second scanning data. By using a batch scanning manner in the present disclosure, the scanning rods are installed at a third assembly site and a first assembly site for scanning to obtain the first scanning data; the scanning rods are installed at the third assembly site and a second assembly site for scanning to obtain the second scanning data.

Abstract: Liquid crystal antenna box, antenna, and method of manufacturing the antenna box are provided. The antenna box includes first baseplate, second baseplate, liquid crystal layer, and insulation layer. The first baseplate includes a first substrate and a first metal layer. The first metal layer includes a ground part and a via between the ground parts. The second baseplate includes a second substrate and a second metal layer. The second metal layer includes a phase shifter and an interval groove between the phase shifters. Surface spacing between the phase shifter, and the insulation layer in the via or a surface of the first substrate close to the second substrate, surface spacing between the ground part, and the insulation layer at the interval groove or a surface of the second substrate close to the first substrate, and surface spacing between the ground part and the phase shifter, are equal.

Abstract: Microfluidic device and application method thereof are provided. The microfluidic device includes a first substrate and a second substrate that are oppositely arranged along a first direction; and a first storage box and a second storage box that are oppositely arranged along the first direction. The first direction is a thickness direction of the microfluidic device. The first storage box includes a first storage cavity and a first opening communicating with the first storage cavity, and the first substrate is fixed in the first storage cavity. The second storage box includes a second storage cavity and a second opening communicating with the second storage cavity, and the second substrate is fixed in the second storage cavity. Along the first direction, the first opening is arranged opposite to the second opening and the first storage box is nested with the second storage box.

Abstract: A method and apparatus for recognizing mark points, a device, and a storage medium are provided. The method for recognizing mark points includes: acquiring a plurality of first three-dimensional coordinates corresponding to a plurality of mark points when a maxilla and a mandible are in a first pose; acquiring a plurality of second three-dimensional coordinates corresponding to the plurality of mark points when the maxilla and the mandible are in a second pose; and recognizing, according to the plurality of first three-dimensional coordinates and the plurality of second three-dimensional coordinates, first mark points located on the maxilla and second mark points located on the mandible from the plurality of mark points.