Abstract: Systems, devices, and methods are provided for depth-guided structure from motion. A system may obtain a plurality of image frames from a digital content item that corresponds to a scene and determine, based at least in part on a correspondence search, a set of 2-D keypoints for the plurality of image frames. A depth estimator may be used to determine a plurality of dense depth map for the plurality of image frames. The set of 2-D keypoints and the plurality of dense depth maps may be used to determine a corresponding set of depth priors. Initialization and/or depth-regularized optimization may be performed using the keypoints and depth priors.

Abstract: A filter element mounting structure comprises a switch member arranged on a shell, a limiting member and a driving mechanism; the driving mechanism is arranged on the shell, the limiting member is connected with the driving mechanism, a locking groove is formed on a filter element, the limiting member comprises a plurality of locking positions comprising a first locking position, a second locking position and a third locking position; when the limiting member is in the first locking position, the filter element is mounted in the shell, when the filter element is mounted in the shell, the switch member is touched, and the driving mechanism controls the limiting member to move to the second locking position and lock the filter element; and when the driving mechanism drives the limiting member to move to the third locking position, the limiting member provides an ejecting force to eject the filter element.

Abstract: A method, apparatus, device and storage medium for verifying a real store, which belong to the field of data processing. The method includes: acquiring inputted store information of a first store (S101); searching for, based on the store name and the store address of the first store, a first target store name in a first target area in an electronic map (102) searching for, based on the store address of the first store, a real store address database, and the store name of the first store, a second target store name in a second target area in the electronic map (S103) determining, under a condition that the first target store name or the second target store name exists, that the first store is a real store (S104).

Abstract: A filter element mounting structure comprises a switch member arranged on a shell, a limiting member and a driving mechanism; the driving mechanism is arranged on the shell, the limiting member is connected with the driving mechanism, a locking groove is formed on a filter element, the limiting member comprises a plurality of locking positions comprising a first locking position, a second locking position and a third locking position; when the limiting member is in the first locking position, the filter element is mounted in the shell, when the filter element is mounted in the shell, the switch member is touched, and the driving mechanism controls the limiting member to move to the second locking position and lock the filter element; and when the driving mechanism drives the limiting member to move to the third locking position, the limiting member provides an ejecting force to eject the filter element.

Abstract: Systems, devices, and methods are provided for depth guided structure from motion. A system may obtain a plurality of image frames from a digital content item that corresponds to a scene and determine, based at least in part on a correspondence search, a set of 2-D keypoints for the plurality of image frames. A depth estimator may be used to determine a plurality of dense depth map for the plurality of image frames. The set of 2-D keypoints and the plurality of dense depth maps may be used to determine a corresponding set of depth priors. Initialization and/or depth-regularized optimization may be performed using the keypoints and depth priors.

Abstract: Disclosed is a filter element butt joint mechanism, including: a fixed base with a mounting cavity; a butt joint base arranged in the mounting cavity and close to an inner end of the fixed base; a filter element including a housing, a head of the housing being inserted into the mounting cavity from an outer end, an insertion pipe being formed at the head of the housing; a limit sliding-clamping mechanism; and a screw transmission mechanism, wherein a groove is formed in the head of the housing, and an insertion pipe is formed in the groove; a boss matched with the groove is formed on the butt joint base, and a plug-hole matching the insertion pipe is formed on the boss.

Abstract: The utility model provides a water purification machine with adjustable discharge capacity. The water purification machine with the adjustable discharge capacity comprises a water purification tank, awater storage tank and a controller, the device comprises a first treatment cylinder, a second treatment cylinder and a third treatment cylinder, the bottom of the first treatment cylinder communicates with a first branch pipe, the other end of the first branch pipe communicates with the bottom of the second treatment cylinder, the top of the second treatment cylinder communicates with a second branch pipe, and the other end of the second branch pipe communicates with the interior of the third treatment cylinder; one end of the raw water inlet pipe is communicated with the top of the first treatment cylinder; and the top end of the first drainage pipe communicates with the bottom of the third treatment cylinder, and the other end of the first drainage pipe communicates with a booster pump.

Abstract: Disclosed is a filter element butt joint mechanism, including: a fixed base with a mounting cavity; a butt joint base arranged in the mounting cavity and close to an inner end of the fixed base; a filter element including a housing, a head of the housing being inserted into the mounting cavity from an outer end, an insertion pipe being formed at the head of the housing; a limit sliding-clamping mechanism; and a screw transmission mechanism, wherein a groove is formed in the head of the housing, and an insertion pipe is formed in the groove; a boss matched with the groove is formed on the butt joint base, and a plug-hole matching the insertion pipe is formed on the boss.

Abstract: A valve body, including a first cavity, a second cavity communicated with the first cavity through a second water inlet of the second cavity, a valve core and an elastic reset member; the valve core, arranged in the first cavity and coaxial with the second water inlet, includes a piston and a first ejector rod being coaxial with the piston; the piston is configured to open or close the second water inlet; the elastic reset member is configured to press the valve core to move in the axial direction to close the second water inlet. A self-locking level control valve is adopted. The water purifier achieves no reactive power loss, low emission and safe water quality, avoids frequent startup of the water purification system, and solves the technical problem of the “first glass of water” brought by the ultra-low pressure reverse osmosis pumpless water purification system.

Abstract: This application provides a camera module and an electronic device, and relates to the field of electronic device technologies. The camera module includes an optical camera lens, a variable aperture, and an SMA motor. The variable aperture has an aperture hole whose size is adjustable. The SMA motor includes a first carrier, a base, and an SMA drive assembly. The optical camera lens is fastened to the first carrier. The SMA drive assembly is connected between the first carrier and the base. The SMA drive assembly is configured to drive the first carrier, the optical camera lens, and the variable aperture to move together relative to the base, so as to implement automatic focusing and/or optical image stabilization.

Abstract: A concentrated water regulating valve is provided in this disclosure, which includes: a valve body having a water inlet, a water outlet and a discharge port, a valve cavity being formed inside the valve body; a partition component provided in the valve body and configured to divide the valve cavity into a first cavity and a second cavity, the partition component being provided with a hole series communicating the first cavity with the second cavity, and the water inlet and the water outlet being communicated with the first cavity, and the discharge port being communicated with the second cavity; and a spool arranged in the second cavity for changing a flow section of the hole series. The first cavity is provided to be a cylindrical cavity; and at least the water inlet extends to the first cavity in a tangential direction, so that the concentrated water flows rotationally after entering the first cavity through the water inlet.

Abstract: The present disclosure relates to a method for preparing a colorant having a target color and the colorant. The method includes configuring submicron particles prepared from a predetermined material to have a predetermined size; adjusting a ratio of the submicron particles to cuttlefish juice submicron particles to a predetermined ratio; evaporating a predetermined solution mixed with the submicron particles and the cuttlefish juice submicron particles to obtain an amorphous photonic crystal structure; acquiring spectral data for reflected light generated by incident light irradiating the amorphous photonic crystal structure; determining whether the spectral data meets a predetermined condition, wherein the predetermined condition is associated with the target color; and responsive to determining that the spectral data does not meet the predetermined condition, adjusting at least one of the ratio or a size of each of the submicron particles until the spectral data meets the predetermined condition.

Abstract: The present application provides a water tank assembly for water purification and a water purification system. The water tank assembly includes: a first water tank, a water inlet guide tube, a water inlet control assembly, a second water tank and a water outlet guide tube. Parameters of the water tank assembly includes a first liquid volume. The first liquid volume is greater than the initiation liquid volume and less than or equal to a level-difference liquid volume. According to the present disclosure, the first cup of water is diluted rapidly to reach the direct-drinking water, ensuring freshness of the direct-drinking water, and allowing the second water tank to take water from the first tank quickly for at least twice.

Abstract: Provided is a drainage device and a system for controlling discharging of concentrated water in a water purification process. The device includes a valve cavity, a flowmeter, a transmission shaft and a control unit. The control unit is used for controlling a motion of the transmission shaft to adjust a liquid flow of the flowmeter in the valve cavity. The device inhibits an instantaneous impact of a liquid on the valve cavity to relieve vibration generated by the instantaneous impact; a special structural design is employed, which is favorable for controlling a flow of the concentrated water; moreover, the device is suitable for different pressure environments, achieves the objectives of small volume, controllable fitting area and small friction force; prevents leakage, and is easy to maintain and clean; and abnormal discharging of the concentrated water caused by water hammer and liquid impact in a water purification system is solved.

Abstract: A valve body, including a first cavity, a second cavity communicated with the first cavity through a second water inlet of the second cavity, a valve core and an elastic reset member; the valve core, arranged in the first cavity and coaxial with the second water inlet, includes a piston and a first ejector rod being coaxial with the piston; the piston is configured to open or close the second water inlet; the elastic reset member is configured to press the valve core to move in the axial direction to close the second water inlet. A self-locking level control valve is adopted. The water purifier achieves no reactive power loss, low emission and safe water quality, avoids frequent startup of the water purification system, and solves the technical problem of the “first glass of water” brought by the ultra-low pressure reverse osmosis pumpless water purification system.

Abstract: Provided is a drainage device and a system for controlling discharging of concentrated water in a water purification process. The device includes a valve cavity, a flowmeter, a transmission shaft and a control unit. The control unit is used for controlling a motion of the transmission shaft to adjust a liquid flow of the flowmeter in the valve cavity. The device inhibits an instantaneous impact of a liquid on the valve cavity to relieve vibration generated by the instantaneous impact; a special structural design is employed, which is favorable for controlling a flow of the concentrated water; moreover, the device is suitable for different pressure environments, achieves the objectives of small volume, controllable fitting area and small friction force; prevents leakage, and is easy to maintain and clean; and abnormal discharging of the concentrated water caused by water hammer and liquid impact in a water purification system is solved.

Abstract: Method, apparatus and systems are provided for key derivation. A target base station receives multiple keys derived by a source base station, where the keys correspond to cells of the target base station. The target base station selects a key corresponding to the target cell after obtaining information regarding a target cell that a user equipment (UE) is to access. An apparatus for key derivation and a communications system are also provided.

Abstract: Method, apparatus and systems are provided for key derivation. A target base station receives multiple keys derived by a source base station, where the keys correspond to cells of the target base station. The target base station selects a key corresponding to the target cell after obtaining information regarding a target cell that a user equipment (UE) is to access. An apparatus for key derivation and a communications system are also provided.

Abstract: A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided.

Abstract: A method, an apparatus and a system for key derivation are disclosed. The method includes the following steps: a target base station) receives multiple keys derived by a source base station, where the keys correspond to cells of the target base station; the target base station selects a key corresponding to the target cell after knowing a target cell that a user equipment (UE) wants to access. An apparatus for key derivation and a communications system are also provided.