Abstract: A map data source processing method includes determining a target pixel for an expansion operation from a map data source, determining an expansion parameter for the expansion operation on the target pixel, and performing the expansion operation on the target pixel based on the expansion parameter.

Abstract: A method for controlling an unmanned aerial vehicle (UAV) includes receiving, by a processor of the UAV, a plurality of images captured by an imaging device coupled to the UAV, identifying, by the processor, a target in at least one image of the plurality of images, determining, by the processor, whether the target is a stationary target or a moving target based on analyzing the plurality of images, and automatically effecting, by the processor, movement of the UAV based on determining the target is the stationary target or the moving target.

Abstract: A method for implementing obstacle avoidance of a movable object within an environment is provided. The method includes determining whether the movable object is going to collide with one or more obstacles based on a predicted movement of the movable object along a motion path. The motion path is incrementally adjusted in at least one direction in response to the movable object being determined to collide with the one or more obstacles. For each incremental angle in the at least one direction, whether the movable object is going to collide with the one or more obstacles is determined.

Abstract: The present disclosure provides auxiliary moving methods of a mobile platform, mobile devices, and mobile platforms. The method comprises: generating, by a mobile platform in a tracking mode, an obstacle-avoiding auxiliary instruction when the mobile platform is tracking a target object and a distance between the mobile platform and an obstacle is less than a predetermined distance; and controlling a movement trajectory of the mobile platform based on a tracking instruction and the obstacle-avoiding auxiliary instruction. The auxiliary moving methods of a mobile platform, mobile devices, and mobile platforms can be used to ensure the safe movement of the mobile platform while effectively tracking the target object, and increase the travel distance of the mobile platform.

Abstract: A mapping method, a movable platform, and a computer-readable storage medium are provided. The mapping method includes: determining a designated area of a local map based on planning information of the movable platform, wherein the designated area of the local map does not overlap with a location of the movable platform in the local map; and generating a local map based on at least a part of map information obtained by the movable platform and the designated area of the local map. The problem of low map utilization is resolved, the map utilization and user experience are improved, and an effective range of the local map is expanded.

Abstract: A gimbal servo control method includes obtaining a predicted flight trajectory of an aircraft within a preset time period from a current time, and adjusting an attitude of a gimbal carried by the aircraft according a predicted velocity direction of the aircraft at a point of the predicted flight trajectory.

Abstract: A method for determining a target direction for a movable object includes providing an image on a computer-implemented display, obtaining a position of a selected point on the image in response to a user selecting the point on the image, and determining the target direction based on the position of the selected point on the image.

Abstract: A method of generating a flight path includes obtaining an image and a curve, the curve being plotted on the image. The method also includes generating the flight path based on the image and the curve, the flight path being configured for controlling an unmanned aerial vehicle (UAV) to fly along the flight path.

Abstract: The present disclosure provides an obstacle detection method. The method includes acquiring a first type of grid including obstacle indication information; determining a corresponding project position of the first type of grid in a first depth image; acquiring a first distance between a mobile platform and the corresponding projection position and a second distance between the mobile platform and an obstacle, the obstacle being the obstacle detected based on the first depth image; and updating the obstacle indication information of the first type of grid based on the first distance and the second distance.

Abstract: A method of building a two-dimensional (2D) elevation map includes receiving sensor data regarding a 2D coordinate in a 2D coordinate system, computing a surface height for the 2D coordinate based on the sensor data, assigning a confidence indicator to the computed surface height based on the sensor data, and storing the computed surface height and the assigned confidence indicator for the 2D coordinate in a database, thereby building the 2D elevation map.

Abstract: An electric moving device for vehicles, relating to the trailer area, having a base frame, a travelling mechanism, a steering handle mechanism, a driving mechanism and an electric control assembly. The base frame has a support frame and a connecting frame, and the connecting frame is disposed over the support frame. The travelling mechanism has roller wheels on the support frame, and the driving mechanism has a driver and a clutch system. The driver and clutch system are located on two sides of the support frame separately. The clutch system has an input end connected to the driver in a transmission way and an output end connected to the roller wheels in a transmission way. The steering handle mechanism is rotationally fixed to the base frame so the steering handle mechanism could deflect to the two sides of the travelling direction of the moving device for vehicles.

Abstract: An obstacle detection method includes obtaining a base image captured by a camera of a moveable object while the moveable object is at a first position and extracting an original patch from the base image. The original patch corresponds to a portion of the base image that includes a feature point. The method further includes obtaining a current image captured by the camera while the moveable object is at a second position, determining a scale factor between the original patch and an updated patch in the current image that corresponds to a portion of the current image that includes the feature point with an updated location, and obtaining an estimate of a corresponding object depth for the feature point in the current image based on the scale factor and a distance between the first position and the second position.

Abstract: A method of determining a flight path for an aerial vehicle includes identifying during flight a change in a state of signal transmission occurring at a first location, and, in response to identifying the change, selecting a first destination within a proximity of a second location. A state of signal transmission at the second location during a previous flight is different from a state of signal transmission at the first location. The method further includes determining a first flight path to reach the first destination. The first flight path comprises accessible locations detected by one or more sensors onboard one or more aerial vehicles. The method also includes, upon reaching the first destination by the aerial vehicle, assessing in real time a state of signal transmission at the first destination, and determining a second flight path to a second destination based on the assessment.

Abstract: A method for controlling flight of an aircraft includes obtaining a location of a target area in an image captured by an imaging device mounted on the aircraft. The method also includes determining, based on the location of the target area, a relative direction of a target object corresponding to the target area relative to the aircraft. The method also includes determining a first direction of the aircraft based on the relative direction, the first direction being a direction approaching the target object. The method also includes based on a determination that the aircraft is in a moving-away flight mode, determining a second direction based on the first direction, the second direction being opposite the first direction. The method further includes controlling the flight of the aircraft based on the second direction.

Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes obtaining a first image captured by an imaging device carried by the UAV during a takeoff of the UAV from a target location, obtaining a second image from the imaging device in response to an indication to return to the target location, determining a spatial relationship between the UAV and the target location by comparing the first image and the second image, and controlling the UAV to approach the target location based at least in part on the spatial relationship.

Abstract: A system for using ultrasound to detect distance on mobile platform and methods for making and using same. The system includes an ultrasound transceiver that can transmit and/or receive ultrasound waves and determine distance from an object of interest using a time-of-flight of the ultrasound wave. The system is adapted to reduce noise by using a dynamic model of the mobile platform to set constraints on the possible location of a received ultrasound echo. A linear, constant-speed dynamic model can be used to set constraints. The system can further reduce noise by packetizing a received ultrasound waveform and filtering out noise according to height and width of the packets. The system likewise can remove dead zones in the ultrasound transceiver by subtracting an aftershock waveform from the received waveform. The systems and methods are suitable for ultrasound distance detection on any type of mobile platform, including unmanned aerial vehicles.

Abstract: A method of ultrasound distance detection includes identifying an ultrasound echo from an object and determining a distance between a mobile platform and the object based upon the ultrasound echo. Identifying the ultrasound echo includes dividing a sonic waveform received by the mobile platform into packets, filtering the packets using at least a threshold packet bandwidth to identify one or more candidate packets that are not noise, and identifying the ultrasound echo from the one or more candidate packets. The threshold packet bandwidth is multiple of an average width of previously known echoes.

Abstract: A method for controlling a movable object comprise receiving an input indicative of a selected mode, wherein the selected mode is selected from a plurality of modes, and effecting movement of the movable object based on the selected mode. The plurality of modes may comprise at least a target mode and a directional mode. The movable object may be configured to move towards or follow a selected target when the selected mode is the target mode. The movable object may be configured to move in a selected direction when the selected mode is the directional mode. An apparatus, a medium and an UAV system are also provided.

Abstract: A method for controlling flight includes displaying prompt information in a picture received from an aerial vehicle, dividing the picture into at least two portions based on the prompt information, obtaining a location of a click operation on the picture, and controlling a flight direction of the aerial vehicle based on the location and the prompt information.

Abstract: A system for controlling an unmanned aerial vehicle (UAV) includes a first user interface configured to receive a first user input and a second user interface configured to receive a second user input. The first user input provides one or more instructions to effect an autonomous flight of the UAV. The second user input provides one or more instructions to modify the autonomous flight of the UAV, The autonomous flight includes a flight towards a target.