Abstract: Example devices, methods, and computer-readable media for decoding video data are described. An example method includes determining to decode a current block of the video data using a merge mode. The example method includes generating a first merge list for the current block, wherein generating the first merge list comprises applying template matching to candidates of the first merge list. The example method includes generating, based on the first merge list, a second merge list. The example method includes decoding the current block using the merge mode and based on the first merge list or the second merge list.

Abstract: Example devices, methods, and computer-readable media are disclosed for decoding video data. An example method includes determining to decode a current block of the video data using a merge mode. The example method includes obtaining a flag from a bitstream. The example method includes determining, based on a value of the flag, to use a second merge list of two merge lists for the current block, wherein the second merge list is based on a first merge list of the two merge lists. The example method includes decoding the current block based on the second merge list.

Abstract: Example devices, methods, and computer-readable media are described. An example method includes determining to decode a current block of the video data using a merge mode. The example method includes determining, for the current block, to apply local illumination compensation (LIC). The example method includes determining, for the current block, to apply decoder side motion vector refinement (DMVR). The example method includes decoding the current block based on applying LIC and applying DMVR.

Abstract: A process for producing lower olefins from oxygenates includes the steps of contacting a feedstock comprising oxygenates with molecular sieve catalyst in fluidized bed reaction zone under effective conditions, to produce product including ethylene and/or propylene; the effective conditions include that in the fluidized bed reaction zone, the weights of catalysts having various carbon deposition amounts are controlled, calculated as the weight of the molecular sieve in the catalysts, to have the following proportions based on the total weight of the catalysts in the fluidized bed reaction zone: the proportion of the weight of the catalyst having a coke deposition amount of less than 3 wt % is 1-20 wt %; the catalyst having a coke deposition amount of from 3 wt % to less than 5 wt % represents 10 to 70 wt %; and the catalyst having a coke deposition amount from 5 wt % to 10 wt % represents 10 to 88 wt %.

Abstract: Disclosed in the present disclosure is a method for processing remote sensing images by fusing elevation information.

Abstract: A video coder may determine a quantization parameter (QP) value for a block of video data, determine a residual coding method from a plurality of residual coding methods based on the QP value, wherein the plurality of residual coding methods include transform skip (TS) residual coding and regular residual coding, and code a residual of the block of video data using the determined residual coding method.

Abstract: Devices and methods are described for coding a chroma block of video data. An example device includes one or more memories configured to store the video data. The device includes one or more processors in communication with the one or more memories. The one or more processors are configured to determine that single-tree block partitioning is used on a block of the video data. The one or more processors are configured to apply an intra chroma copy mode to a chroma block of the block. The one or more processors are configured to encode or decode the chroma block based on single-tree block partitioning and the intra chroma copy mode.

Abstract: An example device for decoding video data includes a memory configured to store video data; and a processing system including one or more processors implemented in circuitry, the processing system being configured to: determine that a previously coded block of video data was coded using uni-prediction mode for which a bi-prediction syntax element is not assigned a value; determine that a current block of the video data is to be coded using a bi-prediction mode and that motion information of the current block is to be predicted from the previously coded block, including from the bi-prediction syntax element of the previously coded block; and in response to the bi-prediction syntax element of the previously coded block not having an assigned value, decode the current block using a substitute value for the bi-prediction syntax element.

Abstract: Methods, apparatus, and systems for sensor alignment include acquiring a translational vector, a first calibration point location and a second calibration point location, determining an expected rotational orientation in response to the translational vector, the first calibration point location and the second calibration point location, capturing an image of the a first calibration point and the second calibration point, determining a first position of the first calibration point and a second position of the second calibration point in response to the image, calculating a calculated rotational orientation in response to the first position of the first calibration point and the second position of the second calibration point, determining a calibration value in response to the calculated rotational orientation, storing the calibration value and controlling a vehicle in response to the calibration value and a subsequent image.

Abstract: Disclosed in the present disclosure is a method for processing remote sensing images by fusing elevation information.

Abstract: The invention relates to a process of converting methanol in a fluidized bed reactor comprising feeding a methanol-containing feedstock into a fluidized bed reactor, contacting the feedstock with a catalyst, to produce a product comprising ethylene and propylene under effective conditions; the fluidized bed reactor comprises a diluent-phase zone and a dense-phase zone, wherein the diluent-phase temperature difference between any regions of the diluent-phase zone having a methanol concentration of more than 0.1 wt % (preferably more than 0.01 wt %) in the fluidized bed reactor is controlled to be less than 20° C., and the dense-phase temperature difference between any regions in the dense-phase zone having a methanol concentration of more than 0.1 wt % (preferably more than 0.01 wt %) in the fluidized bed reactor is controlled to be less than 10° C.

Abstract: A short contact reaction system for preparing ethylene and propylene from methanol includes an MTO short contact reactor, a riser reactor, a dense bed, and a stripper. The MTO short contact reactor has the following components coaxially distributed from inside to outside: a methanol feeding pipeline, a filter pipe wall, a product gas channel, and a catalyst distributor arranged at the top of the reactor, and a seal pipe arranged at the bottom of the reactor. The seal pipe is located in the stripper. The diameter at the top of the product gas channel is smaller than the diameter at the bottom of the product gas channel. Methanol is in crossflow contact with the descending coked catalyst II in the MTO short contact reactor.

Abstract: A rotary valve has a valve body and a valve sleeve disposed coaxially hermetically outside the valve body. The valve body has a first, a second, and a third group of flow channels, ports of these are disposed on a surface of the valve body. The valve sleeve is evenly opened with a plurality of through-holes, and an inner end of each through-hole is provided with a vertical groove extending up and down along an inner wall of the valve sleeve. The vertical groove is divided into three sections, each communicating with the ports of the first, the second, and the third group of flow channels, respectively. The first group of flow channels are in a working state, a switching valve is provided at the through-hole, which switches one group of the second group of flow channels and the third group of flow channels into the working state.

Abstract: The invention relates to a process of converting methanol in a fluidized bed reactor comprising feeding a methanol-containing feedstock into a fluidized bed reactor, contacting the feedstock with a catalyst, to produce a product comprising ethylene and propylene under effective conditions; the fluidized bed reactor comprises a diluent-phase zone and a dense-phase zone, wherein the diluent-phase temperature difference between any regions of the diluent-phase zone having a methanol concentration of more than 0.1 wt % (preferably more than 0.01 wt %) in the fluidized bed reactor is controlled to be less than 20° C., and the dense-phase temperature difference between any regions in the dense-phase zone having a methanol concentration of more than 0.1 wt % (preferably more than 0.01 wt %) in the fluidized bed reactor is controlled to be less than 10° C.

Abstract: Method for sensor alignment including detecting a depth point cloud including a first object and a second object, generating a first control point in response to a location of the first object within the depth point cloud and a second control point in response to a location of the second object within the depth point cloud, capturing an image of a second field of view including a third object, generating a third control point in response to a location of the third object detected in response to the image, calculating a first reprojection error in response to the first control point and the third control point and a second reprojection error in response to the second control point and the third control point, generating an extrinsic parameter in response to the first reprojection error in response to the first reprojection error being less than the second reprojection error.

Abstract: Devices and techniques are disclosed for coding video data. An example device includes one or more memories configured to store the video data and one or more processors coupled to the one or more memories. The one or more processors are configured to determine to code a first block of the video data using intra block copy merge mode with block vector differences (IBC-MBVD). The one or more processors are configured to process a syntax element indicative of whether to use IBC-MBVD with fractional-pel offsets or to use IBC-MBVD with integer-pel offsets. The one or more processors are configured to code the first block based on a determination of whether to use IBC-MBVD with fractional-pel offsets or IBC-MBVD with integer-pel offsets.

Abstract: An apparatus for supplying power is disclosed. The apparatus may comprise a power supply circuit and a processing unit, wherein the power supply circuit may be connected with an electric energy input end of the processing unit, and the power supply circuit may provide a first power supply for the processing unit; and a forward voltage output end of the processing unit may provide a forward power supply, and a backward voltage output end of the processing end may provide a negative power supply, wherein the processing unit may include a resonant circuit, a first switching frequency of the processing unit may include a resonant frequency of the resonant circuit, and the resonant frequency may be outside an effective frequency range of a load of the apparatus for supplying power.

Abstract: A method of encoding or decoding video data includes determining a block vector for a current block of a current picture, the block vector identifying a fractional-pel position between reference samples in the current picture and having a fractional-pel resolution that is less than integer-pel resolution; generating a prediction block from reference samples in the current picture based on the fractional-pel position; and encoding or decoding the current block based on the prediction block.