Abstract: There is includes a method and apparatus comprising computer code configured to cause a processor or processors to perform obtaining volumetric data of at least one three-dimensional (3D) visual content, obtaining a patch by dividing a plurality of 3D meshes from the volumetric data, the patch including vertices of at least one of the 3D meshes, forming a prediction group comprising a subset of the vertices of the patch, and signaling a prediction mode of the prediction group collectively for the subset of the plurality of vertices of the patch.

Abstract: A method for selectively chemically reducing CO2 to form CO includes providing a catalyst, and contacting H2 and CO2 with the catalyst to chemically reduce CO2 to form CO. The catalyst includes a metal oxide having a chemical formula of FexCoyMn(1?x?y)Oz, in which 0.7?x?0.95, 0.01?y?0.25, and z is an oxidation coordination number.

Abstract: A device includes a support structure having a plurality of concentric cuts through the support structure that define a set of structure sections. The device also includes an insert assembly supported by the support structure at an inner structure section of the set of structure sections. The inner structure section is configured to tilt the insert assembly at a tilt angle in accordance with a displacement of a first outer structure section of the set of structure sections.

Abstract: A system with methods to enhance key strength for a quantum shared key which is derived by a conventional quantum key distribution protocol and the system provides a single optical communication channel with security protection mechanism for key distribution without relying on an authenticated public classical channel. The system is implemented with technology in combination of key-strength enhancement, re-encoding operation, density-matrix verification, and grating control for a single optical communication channel where the system can be integrated with a conventional Quantum-Key-Distribution protocol such as BB84 or B92, but excluding GHz-clocked QKD system. Thereby, the system can help a known QKD system to overcome current drawbacks of an apparatus implemented over a conventional QKD protocol so as to derive an enhanced quantum shared key.

Abstract: This document describes systems and techniques for simulating the touch of a human finger in manipulating an interface device, such as a touchscreen included in a mobile phone or other computing device. The systems and techniques include an artificial finger configured to be received and manipulated by a robotic actuator to simulate surface engagement, mechanical force, and electrical conductivity of a human finger engaging the touchscreen at varied touch angles and/or mechanical pressures. The systems and techniques thereby provide for rigorous and repeatable testing of an electrical and mechanical response of the touchscreen to simulated user inputs without involving a human test operator.

Abstract: In a method of mesh processing, a mesh includes a current vertex in a plurality of vertices. A plurality of candidate predictions of the current vertex is determined based on a plurality of triangles in the mesh. Each of the plurality of triangles corresponds to a respective candidate prediction. A prediction of the current vertex is determined from the plurality of candidate predictions. The prediction corresponds to a threshold prediction difference between the current vertex and each of the plurality of candidate predictions. Prediction information of the current vertex is further generated based on the determined prediction.

Abstract: A rear approaching vehicle detecting and warning device comprises a detecting device installed at an appropriate position behind a motorbike body, a signal processing module, and a riding safety component capable of being assembled on handlebars of the motorbike. The detecting device is provided with a sensing module, a control circuit, and a signal transmitting module. The sensing module senses a vehicle approaching around to generate a detection signal. The signal transmitting module receives the detection signal through the control circuit and then transmits the detection signal. The signal processing module is used for receiving and processing the detection signal transmitted by the signal transmitting module to generate a warning signal. The riding safety component is provided with a light module and electrically connected to the signal processing module. The riding safety component is used for receiving the warning signal to display on the light module.

Abstract: A method for selectively chemically reducing CO2 to form CO includes providing a catalyst, and contacting H2 and CO2 with the catalyst to chemically reduce CO2 to form CO. The catalyst includes a metal oxide having a chemical formula of FexCoyMn(1-x-y)Oz, in which 0.7?x?0.95, 0.01?y?0.25, and z is an oxidation coordination number.

Abstract: A blind spot detecting and warning device suitable for two-wheeled mobile device comprises a detecting device installed at a first position behind a user and a warning device installed at a second position that is in front of the user and can be seen by the user. The detecting device is provided with a sensing module, a control circuit and a signal transmitting module. When the sensing module senses a vehicle is approaching around, the sensing module generates a detection signal. The signal transmitting module receives the detection signal through the control circuit and then transmits the detection signal. The warning device is provided with a signal processing module and a warning module, wherein the signal processing module is used for receiving the detection signal transmitted by the signal transmitting module, and the detection signal drives the warning module to generate a warning.

Abstract: Described are a recombinant host cell, a composition comprising a glucoamylase and methods of saccharifying the starch substrate using the glucoamylase. Moreover, the disclosure also relates to a process of producing fermentation products and a method for increasing starch digestibility in an animal as well as a method of producing a fermented beverage. The glucoamylase or 1,4-alpha-D-glucan glucohydrolase (EC 3.2.1.3) is preferably from the Mucorales-clade, especially having high sequence identity to the glucoamylase from Saksenaea vasiformis.

Abstract: A packet processing method includes: a first device receives a packet from a second device; the first device determines a first queue buffer used to store the packet, and determines a first upper limit value of the first queue buffer based on an available value of a first port buffer and an available value of a global buffer, where the global buffer includes at least one port buffer, the first port buffer is one of the at least one port buffer, the first port buffer includes at least one queue buffer, and the first queue buffer is one of the at least one queue buffer. The first device processes the packet based on the first upper limit value of the first queue buffer, an occupation value of the first queue buffer, and a size of the packet.

Abstract: A method performed in a decoder includes receiving a coded video bitstream that includes one or more 2D meshes corresponding to a 3D mesh. The method includes reconstructing one or more boundary vertices of each of the one or more 2D meshes. The method includes determining whether a reconstruction mode for reconstructing one or more internal vertices of each of the one or more 2D meshes is one of (i) a sampling mode and a (ii) non-sampling mode. The method includes reconstructing the one or more internal vertices of each of the one or more 2D meshes based on the determined reconstruction mode. The method further includes reconstructing the 3D mesh based on the reconstructed one or more boundary vertices of each of the one or more 2D meshes and the reconstructed one or more internal vertices of each of the one or more 2D meshes.

Abstract: A method performed by at least one processor in a decoder includes receiving a coded video bitstream that includes a compressed two dimensional (2D) mesh corresponding to a surface of three dimensional (3D) volumetric object. The method further includes predicting a current vertex included in the compressed 2D mesh based on an interpolation-based hierarchical prediction scheme that uses at least one sampled vertex included in the compressed 2D mesh. The method further includes deriving a prediction residual associated with the predicted current vertex. The method further includes reconstructing a boundary vertex associated with the 3D volumetric object based on the predicted current vertex and the derived prediction residual.

Abstract: A method performed in a decoder includes receiving a coded video bitstream that includes (i) one or more two dimensional (2D) meshes corresponding to a three dimensional (3D) mesh and (ii) a 2D to 3D index array that maps each vertex in the one or more 2D meshes to a respective vertex in the 3D mesh. The method further includes reconstructing the 3D mesh using the 2D to 3D index array to map each vertex in the one or more 2D meshes to the respective vertex in the 3D mesh. The 2D to 3D index array encoded in a tuple format in which each tuple in the 2D to 3D index array includes a first parameter that specifies a starting index of a run, a second parameter that specifies a length of the run, and a third parameter that specifies a direction of the run.

Abstract: Provided is a semiconductor device including: a substrate, a plurality of isolation structures, a plurality of channel layers, and a gate structure. The substrate includes a plurality of fins thereon. The plurality of isolation structures are respectively disposed between the plurality of fins. A top surface of the plurality of isolation structures is higher than a top surface of the plurality of fins to form a plurality of openings. The plurality of channel layers are respectively disposed in the plurality of openings. Each channel layer is in contact with a corresponding fin and extends to cover a lower sidewall of a corresponding isolation structure, thereby forming a U-shaped structure. The gate structure is filled in the plurality of openings and extends to cover the top surface of the plurality of isolation structures.

Abstract: A method and apparatus that receives a coded video bitstream from an encoder; retrieves, from the coded video bitstream, a mesh including a plurality of polygons that describe a surface of a volumetric object; triangulates one or more vertices of the mesh, the one or more vertices are located on a boundary of the mesh or interior of the mesh; infers connectivity information between the one or more vertices using the triangulation of the one or more vertices; and reconstructs one or more boundary UV coordinates based on the connectivity information.

Abstract: Method, apparatus, and system for atlas sampling-based dynamic mesh compression are provided. The process may include receiving a mesh frame with polygons representing a surface of an object; determining that the mesh frame is associated with an irregular UV chart in response to one or more singularity components in the mesh frame; performing boundary detection to the UV chart to identify one or more boundary loops in the UV chart; and compressing information of the identified one or more boundary loops into a bitstream.

Abstract: This disclosure relates generally to coding and decoding of 3-dimensional (3D) mesh and specifically to fast and efficient packing of parts of a 3D mesh into a map in a 2-dimensional (2D) space. In one example, a 3D mesh frame is decomposed into charts. The charts are iteratively projected and packed into a 2D map to achieve improved compactness by using an image filtering technology. The image filtering technology may involve perform efficient convolution and correlation processing using fast Fourier transform.

Abstract: A method and apparatus that receives a coded video bitstream from an encoder; retrieves, from the coded video bitstream, a mesh including a plurality of polygons that describe one or more surfaces of a volumetric object; predicts a current value of an index of the UV-to-XYZ index array from at least one previously coded value included in another index in the UV-to-XYZ index array, wherein the UV-to-XYZ index array includes a plurality of indices which correspond each two-dimensional (2D) UV vertex associated with the mesh to a three-dimensional (3D) XYZ vertex associated with the mesh; derives a prediction residual associated with the current value of the index of the UV-to-XYZ index array; and reconstructs a boundary UV coordinate based on the predicted current value of the index of the UV-to-XYZ index array and the derived prediction residual.