Abstract: Methods and apparatuses of encoding a video stream encoded using video point cloud coding include obtaining a source point cloud; generating an occupancy map including one or more pixels based on the source point cloud, an occupancy value associated with each pixel being a non-binary value; encoding the occupancy map to generate an encoded occupancy map, wherein a block of the encoded occupancy map corresponds to the one or more pixels of the occupancy map; selecting an occupancy value of the block based on the one or more pixels; and generating an encoded video stream based on the selected occupancy value.

Abstract: An imaging system includes a color imaging sensor that acquires a color image having a color image resolution and color image field of view, a grayscale imaging sensor that acquires a grayscale image having a grayscale image resolution and grayscale image field of view, wherein the grayscale image field of view is at least partially within the color image field of view, and the grayscale image resolution is greater than the color image resolution with respect to the color image field of view, and a first processor that generates an output image by obtaining the color image and the grayscale image, determining a color image region of interest (ROI), bounded by a color image ROI boundary box within the color image, such that the color image ROI includes the subject, and determining a grayscale image ROI, bounded by a grayscale image ROI boundary box within the grayscale image.

Abstract: The present disclosure belongs to the field of biological materials, and particularly relates to a multilayer zirconia ceramic with uniform transition and a method for preparing the same. The specific technical solution of the present disclosure is as follows: a zirconia ceramic with a formula comprising, in percentage by mass, 0-3% of lanthana, 1.5-16% of yttria, 0-2.5% of silicon carbide nano-whiskers, and 0-1.5% of a coloring agent, the balance being zirconia. Correspondingly provided are a multi-layer zirconia ceramic with uniform transition prepared using the formula and a method for preparing the same. By using the method of the present disclosure, multilayer zirconia ceramics with good and uniformly transitioning core properties can be quickly and conveniently prepared, meeting the requirements of patients with dental disorders on the use and esthetics of dentures.

Abstract: The disclosure provides a method for exposing object storage as a service. The method generally includes receiving, by an object service proxy provisioned for providing the service, a request to access a first object in an object store, wherein the object store leverages a percentage of datastore capacity for a datastore, determining, by the object service proxy, both of: an identifier of a container in the object store comprising the first object and an internet protocol (IP) address associated with an object protocol service provisioned to access the container comprising the first object, re-directing, by the object service proxy, the request to access the first object to the object protocol service using the IP address associated with the object protocol service, wherein the request comprises the identifier of the container and in response to re-directing the request, receiving the first object from the object protocol service.

Abstract: A power detector device includes a voltage generator circuit, a reference circuit, a level hold circuit and a comparator circuit. The voltage generator circuit generates a bias voltage and a detection voltage according to a power supply voltage. The reference circuit generates a first reference voltage according to the power supply voltage. The level hold circuit selectively transmits the first reference voltage to a node according to the bias voltage, outputs a second reference voltage via the node, and holds a level of the second reference voltage after stopping transmitting the first reference voltage to the node. The comparator circuit compares the second reference voltage with the detection voltage to generate a power detection signal.

Abstract: A voltage detection method includes: outputting a corresponding one of voltages to be an input voltage according to a clock signal, a first detection signal, a reset signal and multiple first bits; generating the reset signal according to the clock signal and multiple currents, wherein the voltages and the currents are generated based on a power supply voltage; comparing the input voltage with a reference voltage to generate a second detection signal, and generating the first detection signal according to the second detection signal and an enable signal; and adjusting the first bits by a digital circuit according to the second detection signal during a trimming phase to determine the first bits, and outputting the first bits by the digital circuit and resetting the digital circuit according to the first detection signal during a voltage detection phase.

Abstract: A support structure is provided. The support structure includes a first support plate (1), a second support plate (2), a third support plate (3), and a transmission mechanism (4). The first support plate (1) and the second support plate (2) are arranged in parallel. The transmission mechanism (4) is disposed on one side of the first support plate (1) and the second support plate (2) away from a display. The third support plate (3) is connected to the transmission mechanism (4), and the transmission mechanism (4) is rotatably connected to the first support plate (1) and the second support plate (2). An electronic device is provided, which includes one or more such support structures. This configuration can solve the problem of the support area provided by the support structure of the electronic device having certain limitations and thus meets the support requirements for displays of different active screen sizes.

Abstract: A system is provided. The system includes a light source configured to emit a infrared (“IR”) light for illuminating an object. The system also includes a waveguide imaging assembly including a waveguide, an in-coupling element disposed at a first portion of the waveguide, an out-coupling element disposed at a second portion of the waveguide, and an optical sensor disposed facing the out-coupling element. The in-coupling element is configured to couple the IR light reflected by the object into the waveguide, the waveguide is configured to guide the IR light to propagate toward the out-coupling element through total internal reflection, and the out-coupling element is configured to couple the IR light out of the waveguide toward the optical sensor. The optical sensor is configured to generate a tracking signal of the object based on the IR light output from the waveguide.

Abstract: The present invention relates to the field of genetic engineering and process engineering, and discloses an engineering strain producing cordycepin and its derivative 3?-deoxyinosine, its preparation method and application. The method includes: codon optimizing genes Cm1 and Cm2; gene amplification and fragment recovering; methanol-induced promoter and terminator fragments; and inserting the genes into an expression vector and then transferring to Pichia pastoris for screening to obtain the engineering strain of Pichia pastoris of the present invention. The engineering strain can be applied to production of cordycepin and its derivative. The engineering strain prepared by the preparation method of the present invention has great advantages in producing cordycepin and its derivative.

Abstract: A given segment of computer code is obtained and modified to produce one or more inefficient versions of the given segment of computer code in comparison to the given segment of computer code. A code parse tree is generated for the given segment of computer code and each inefficient version of the given segment of computer code. Model embeddings are generated based on the generated code parse trees and a diffusion model is trained based on the generated model embeddings.

Abstract: A routing optimization method for truck-drone integrated rescue vehicles in forest firefighting includes the following steps: collecting the data of the disaster sites caused by forest fires, calculating transportation time on road and flight time according to the data of the disaster sites, and getting the transportation time data of post-disaster relief; based on the disaster site data, transportation time data, and an amount of relief supplies that can be allocated to disaster relief sites, constructing a mathematical model of the truck-drone based vehicle routing problem; solving the mathematical model of the truck-drone based vehicle routing problem by the optimization algorithm, and specifying a post-disaster rescue route of the truck-drone integrated rescue vehicle according to the solution results. The model based on the truck-drone based vehicle routing problem method can reduce the impact of sudden natural disasters, and give full play to the advantages of truck-drone integrated rescue vehicles.

Abstract: Methods and apparatuses of encoding a video stream using video point cloud coding include obtaining a source point cloud; obtaining a geometry-reconstructed point cloud, wherein the geometry-reconstructed point cloud is reconstructed using lossy coding; obtaining a target point included in the geometry-reconstructed point cloud; performing at least one of a forward K-dimensional (KD)-tree search to determine a first plurality of points of the source point cloud which are nearest neighbors to the target point, and a backward KD-tree search to determine a second plurality of points of the source point cloud for which the target point is a nearest neighbor; determining an average color value based on at least one of a first average color value of the first plurality of points and a second average color value of the second plurality of points; selecting a color value for the target point based on the average color value; and generating an encoded video stream based on the selected color value.

Abstract: The present invention is directed to hemostatic compositions comprising at least partially integrated agglomerated ORC fibers, fibrinogen, and thrombin and methods of forming a powdered hemostatic composition, comprising the steps of: forming a suspension of a mixture comprising particles of fibrinogen, thrombin, ORC fibers in a non-aqueous low boiling solvent; spraying the suspension through a nozzle onto a substrate, allowing the non-aqueous solvent to evaporate; separating from the substrate and sieving the composition.

Abstract: A method of virtually inspecting a quality of a product in a production environment includes receiving production information associated with the product, wherein the information is indicative of an operation performed on the product in relation to a first process of the production environment. The method further includes: determining a label for the product using a first classifier model based on the received information associated with the product; comparing the determined label against inspection data associated with an inspection of the product; and storing the production information and the inspection data associated with the product in an extension buffer, based on the comparison of the determined label and the inspection data, for retraining the first classifier model. The above method allows for storing new fault category information that is then dynamically used to retrain the model. Accordingly, this allows for retraining of classifier models without human intervention.

Abstract: A method, computer program, and computer system is provided for 3D pose graph reconstruction. 3D reconstruction of indoor buildings for VR/AR applications, such as virtual touring, digital museum, and virtual home sale, may be performed based on estimating pose graph and transformation matrix between cameras by recognizing markers on the ground in panorama images. Image data corresponding to one or more views of a first camera is received. One or more markers corresponding to a second camera are identified within the received image data. A pose graph corresponding to the one or more views of the first camera is constructed based on the identified one or more markers, the pose graph comprising at least an edge.

Abstract: An antenna includes a first substrate and a second substrate oppositely arranged; the first substrate includes: a first dielectric substrate having a first surface and a second surface oppositely arranged; a reference electrode layer on the first surface; at least one first radiation part on the second surface and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; and at least one feeding structure on the second surface, electrically connected to the first radiation part, and having an orthographic projection on the first dielectric substrate at least partially overlapping that of the reference electrode layer; the second substrate includes: a second dielectric substrate opposite to the second surface; and at least one second radiation part on the second dielectric substrate, and each having an orthographic projection on the first surface within that of one first radiation part.

Abstract: A method for detecting a human behavior includes: obtaining an image to be detected; obtaining a plurality of key points and a plurality of pieces of position information respectively corresponding to the plurality of key points by key-point recognition on the image to be detected; grouping the plurality of key points based on the plurality of pieces of position information to obtain a plurality of key-point groups, the plurality of key-point groups at least including a part of the plurality of key points; and determining a target human behavior based on key points in the plurality of key-point groups.

Abstract: Provided are a manned pole-climbing work platform and a pole-gripping mechanism thereof. The pole-gripping mechanism includes an arm and a distal pole-gripping mechanical hand. The distal pole-gripping mechanical hand includes a front jaw, a rear jaw, a forward-threaded rod, a reverse-threaded rod and a preloader. The front jaw and the rear jaw are articulated with the arm through pivots. The preloader is configured to drive the forward-threaded rod and the reverse-threaded rod to rotate synchronously. The forward-threaded rod and the front jaw are articulated with each other through a front thrust-nut composite pivot. The reverse-threaded rod and the rear jaw are articulated with each other through a rear thrust-nut composite pivot. The front jaw and the rear jaw are openable or closeable relative to each other.

Abstract: A method of fabricating a semiconductor device includes forming, above a substrate surface, a plurality of distributed Bragg reflector (DBR) layers to form a DBR; forming, above the DBR, a first light emitting diode (LED) configured to emit light; and forming, above the first LED, a first reflector having a higher reflectance than the DBR, such that the first reflector and the DBR define a first resonant cavity having a length effective to collimate a first wavelength of the light emitted by the first LED and propagate the collimated light of the first wavelength through the DBR.

Abstract: A method of fabricating a semiconductor device having a distributed Bragg reflector (DBR) includes depositing, above a DBR deposition surface, a plurality of DBR layers to form a DBR, forming at least one aperture extending through the plurality of DBR layers to expose each DBR layer, and applying electrochemical etching to the plurality of DBR layers via the at least one aperture, thereby transforming at least one DBR layer of the plurality of DBR layers into a nanoporous structure.