Abstract: A shutter and a photographing apparatus are provided. The shutter includes: a shutter base including an exposure opening; a shutter mechanism including a blade assembly and a synchronizer ring for driving the blade assembly, the synchronizer ring being movable between a first position and a second position, and the exposure opening being open when the synchronizer ring is in the first position and closed when the synchronizer ring is in the second position; and a braking member for decelerating the shutter mechanism. In the shutter and the photographing apparatus according to the present disclosure, the shutter mechanism may be buffered when the blade assembly closes the exposure opening of a camera, so as to prevent the shutter mechanism from being damaged.

Abstract: A method for controlling a UAV in an environment includes receiving first and second sensing signals from a vision sensor and a proximity sensor, respectively, coupled to the UAV. The first and second sensing signals include first and second depth information of the environment, respectively. The method further includes selecting the first and second sensing signals for generating first and second portions of an environmental map, respectively, based on a suitable criterion associated with distinct characteristics of various portions of the environment or distinct capabilities of the vision sensor and the proximity sensor, generating first and second sets of depth images for the first and second portions of the environmental map, respectively, based on the first and second sensing signals, respectively, combining the first and second sets of depth images to generate the environmental map; and effecting the UAV to navigate in the environment using the environmental map.

Abstract: A propulsion assembly for an unmanned aerial vehicle (UAV), includes a motor, a propeller seat configured to be driven by the motor and to receive a propeller, and a sensor configured to collect sensing data useful for determining a type of the propeller disposed on the propeller seat and controlling the motor based on the type of the propeller.

Abstract: A battery status indication method, A battery status indication apparatus, and a mobile device are provided. The battery status indication method includes: obtaining a power level and a heat state of a battery, the heat state including an unheated state and a heating state; determining a display mode of indicator lights according to the power level and the heat state of the battery; and controlling the indicator lights to display according to the display mode to indicate the power level and the heat state of the battery.

Abstract: A method of tracking a movement of a target by an unmanned aerial vehicle (UAV), the method includes receiving, from a mobile terminal collocating with the target, absolute location coordinate data of the target, acquiring, by a camera of the UAV, image data of the target, determining, based on the absolute location coordinate data and the image data of the target, 3D location coordinate data of the target with respect to the UAV, and controlling, based on the 3D location coordinate data of the target with respect to the UAV, at least one of a direction or a speed of the movement of the UAV, to maintain a constant relative 3D position of the UAV with respect to the target.

Abstract: A system for operating a vehicle includes a first temperature sensor located at a first location and configured to measure a first temperature; a second temperature sensor located at a second location configured to measure a second temperature; and one or more processors. The one or more processors are individually or collectively configured to receive information regarding the first temperature and/or the second temperature; process the information; and impose a restriction affecting operation of the vehicle based on the processed information.

Abstract: A method of controlling a photographing device may include Obtaining setting operation from a user on a first touch screen or a second touch screen of a photographing device, the first touch screen being set on a lens side of the photographing device and a second touch screen being set on an opposite side of the lens side of the photographing device; displaying a first setting interface on the first touch screen and/or displaying a second setting interface on the second touch screen in accordance with the setting operation; and obtaining a setting parameter set by the user based on the first setting interface or the second setting interface, and applying the setting parameter to both the first touch screen and the second touch screen.

Abstract: Photographing device control system, method and device are provided. The photographing device includes a manual lens. The control system includes a parameter adjustment ring(s), a motor(s) and a processor(s). The parameter adjustment ring is arranged on the manual lens, and may be rotated to adjust a lens parameter(s) of the manual lens. A motor(s) is used to drive the parameter adjustment ring to rotate; the motor rotates to different angles based on a first user instruction. The processor is used to obtain the lens parameter of the manual lens when the motor is at each angle, and calibrate a conversion relationship(s) between the rotation angle of the motor and the lens parameters of the manual lens based on each angle and corresponding lens parameter thereof. A target rotation angle of the motor is determined based on the conversion relationship and a target lens parameter(s).

Abstract: The present disclosure provides a gimbal adjustment method. The method includes obtaining a reference image frame sequence and a reference shooting trajectory formed by a movement of a mobile platform when shooting the reference image frame sequence, the reference image frame sequence including two or more reference image frames, the mobile platform including a gimbal and an imaging assembly; estimating a shooting angle based on the reference shooting trajectory, and adjusting the gimbal based on an estimated shooting angle during an image re-shooting; obtaining a current image frame; and determining an amount of adjustment control of the gimbal based on the current image frame and the reference image frame sequence, and adjusting the gimbal based on the amount of adjustment control.

Abstract: A target tracking method, device, a movable platform and a computer-readable storage medium are provided. The method includes: obtaining a first image containing a target to be tracked, and tracking the target to be tracked based on the first image; if the target to be tracked is lost, obtaining motion information of the target to be tracked when it is lost; based on the motion information, matching a target road area where the target to be tracked is located when it is lost in a vector map; and based on the motion information and the target road area, searching for the lost target to be tracked. The method improves the accuracy of target tracking.

Abstract: A flight control method includes displaying a user interface configured to receive an operation instruction including coordinates of waypoints, generating route data of a route based on the coordinates of the waypoints, sending the route data to an aircraft to instruct the aircraft to execute the route, recording an interruption point during execution of the route by the aircraft, displaying a plurality of candidate starting points including at least one of the interruption point, a last waypoint of the route before the interruption point, a next waypoint of the route after the interruption point, or a user-designated waypoint, in response to a selection instruction, selecting a target starting point from the plurality of candidate starting points, and controlling the aircraft in an interrupted state to fly to the target starting point and resume the execution of the route from the target starting point.

Abstract: The present disclosure provides a load stabilization device, a control method thereof, and a computer readable storage medium. In the load stabilization device, a motion sensor, a processor, a stabilization motor, and a parallelogram mechanism constitute a closed-loop feedback control system. A control instruction for the stabilization motor is generated based on a velocity of a second end of the parallelogram mechanism in a direction of gravity relative to a ground, where the second end may carry a load, and the stabilization motor is controlled to drive, according to the control instruction, the parallelogram mechanism to rotate relative to a base, so as to at least partially offset or compensate for jitter of the load carried at the second end of the parallelogram mechanism in the direction of gravity, suppress disturbance generated at a first end of the parallelogram mechanism, and stabilize the load carried at the second end.

Abstract: A supervision method for a flight state of an unmanned aerial vehicle includes respectively establishing communication connections with the unmanned aerial vehicle and a supervision server, receiving identity information about the unmanned aerial vehicle and flight information about the unmanned aerial vehicle sent by the unmanned aerial vehicle, automatically sending the identity information about the unmanned aerial vehicle and the flight information to the supervision server in an on-line mode, receiving at least one of a flight restriction instruction or warning information sent by the supervision server, and forwarding the flight restriction instruction to the unmanned aerial vehicle, so that the unmanned aerial vehicle executes the flight restriction instruction, thereby restricting flight behaviour of the unmanned aerial vehicle in an on-line flight mode via the flight restriction instruction.

Abstract: A wireless communication method may be applied to a movable platform. The movable platform and a terminal device can establish at least two wireless communication links between the movable platform and the terminal device, the at least two wireless communication links being configured to transmit image data captured by the movable platform to the terminal device. The method may include obtaining channel parameters of the at least two established wireless communication links, wherein the at least two established wireless communication links may comprise at least one public network communication link; and encoding the image data captured by the movable platform according to the channel parameters and sending the encoded image data to the terminal device over the at least two wireless communication links.

Abstract: A shooting method is provided, including: obtaining position information of a shooting object; planning a first circumnavigation route and a second circumnavigation route for surrounding shooting of the shooting object based on the position information; controlling a UAV to move along the first circumnavigation route and the second circumnavigation route respectively; and controlling the UAV to shoot the shooting object by a camera mounted on the UAV during movement to obtain multiple images of the shooting object. Images collected on the first circumnavigation route and images collected on the second circumnavigation route share homologous image points of the shooting object. The images are used to establish a three-dimensional model of the shooting object. Thus, the shooting efficiency of the UAVs is improved for shooting images for three-dimensional reconstruction.

Abstract: A gimbal control method includes configuring, while a gimbal is in a power-on state, turning-off motor control parameters according to a mass of a camera device carried by the gimbal. The gimbal includes an electric motor. The turning-off motor control parameters are configured to control the electric motor when the gimbal is powered off or enters a sleep state. The method further includes, in response to the gimbal being powered off or entering the sleep state, controlling a torque of the electric motor to decrease gradually from a starting moment at which the gimbal is powered off or enters the sleep state according to the turning-off motor control parameters.

Abstract: A method of controlling flight of an unmanned aerial vehicle (UAV) includes collecting, while the UAV traverses a flight path, a set of images corresponding to different fields of view of an environment around the UAV using multiple image capture devices, extracting one or more image features from the set of images, constructing a map of the environment using one or more selected image features from the one or more image features, and generating a return path for the UAV using the map of the environment. Each of the multiple image capture devices includes one of the different fields of view.

Abstract: An aerial imaging system for transferring pictures captured from two or more imaging devices includes an aerial node and a ground node. The aerial node has two or more channels, each for acquiring at least one picture from a corresponding imaging device. The aerial node is configured to transfer the acquired pictures. The ground node is configured to present the acquired pictures from the two or more imaging devices.

Abstract: A mount of a photographing device may include a mount module and a restriction structure. The mount module may include an opening to embed a portion of a mount structure of an interchangeable lens, a first engagement portion protruding inwardly into the opening, and a first mount face opposite to a second mount face of the interchangeable lens. When the interchangeable lens rotates from a first rotational position to a second rotational position in a first rotational direction, the first engagement portion may engage with a second engagement portion protruding from an outer peripheral surface of the mount structure of the interchangeable lens. The restriction structure may restrict further rotation of the interchangeable lens from the second rotational position in the first rotational direction to a third rotational position.