Abstract: A computer-implemented method for tracking multiple targets includes identifying a plurality of targets based on a plurality of images obtained from an imaging device carried by an unmanned aerial vehicle (UAV) via a carrier, determining a target group comprising one or more targets from the plurality of targets, and controlling at least one of the UAV or the carrier to track the target group.

Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes identifying a set of target markers based on a plurality of images captured by an imaging device carried by the UAV. The set of target markers includes at least two or more types of target markers that are in close proximity to be detected within a same field of view of the imaging device. The method further includes determining a spatial relationship between the UAV and the set of target markers based at least in part on the plurality of images, and controlling the UAV to approach the set of target markers based at least in part on the spatial relationship while controlling the imaging device to track the set of target markers such that the set of target markers remains within the same field of view of the imaging device.

Abstract: A method includes: determining a target object in a photographed image to track the target object; determining, based on shooting information of a photographing device carried by a movable object, a location of the target object to continuously record the location of the target object; and in response to a disappearance of the target object in the photographed image, controlling, according to the recorded location of the target object prior to the disappearance of the target object, an attitude of the photographing device such that the photographing device continues to photograph in a direction from the photographing device to the location of the target object.

Abstract: A method for controlling a movable object includes obtaining current location information of an obstacle while the movable object tracks a target, determining whether the obstacle is located in a reactive region relative to the movable object based on the current location information of the obstacle, and, in response to determining that the obstacle is not located in the reactive region, selecting an optimized set of candidate movement characteristics having an optimized route optimization score from multiple sets of candidate movement characteristics, and adjusting one or more movement characteristics of the movable object based on the optimized set of candidate movement characteristics such that a distance between the movable object and the obstacle is maintained at or beyond a predefined distance. Each set of candidate movement characteristics among the multiple sets of candidate movement characteristics corresponds to a route optimization score.

Abstract: A method for an unmanned aerial vehicle (UAV) includes: identifying a target object in a photographed image to track the target object; determining, based on a location of the target object in the photographed image, a location of the UAV, and an altitude of a gimbal of the UAV, a location of the target object to continuously record the location of the target object; and in response to a disappearance of the target object in the photographed image, controlling, according to the recorded location of the target object prior to the disappearance of the target object, the altitude of the gimbal such that a photographing device carried by the UAV through the gimbal continues to photograph in a direction from the photographing device to the location of target object.

Abstract: A method for controlling a movable object is provided. A user input that includes a first parameter corresponding to a first coordinate system is received and an operation mode is determined. In response to determining the operation mode being a first operation mode, a second parameter corresponding to a second coordinate system is generated and the movable object is controlled to move based on the second parameter. In response to determining the operation mode being a second operation mode, the first parameter is translated to a third parameter corresponding to the second coordinate system and the movable object is controlled to move based on the third parameter.

Abstract: A control method and device of a movable platform, a movable platform, and a storage medium are provided. The control method may include acquiring a control amount for controlling the movable platform; converting the control amount into control instruction of the movable platform based upon a position of the movable platform and a position of a target object photographed by the movable platform; and controlling the movable platform to move relative to the target object according to the control instruction.

Abstract: A control terminal for controlling an unmanned aerial vehicle (UAV) includes a processor and a storage medium storing instructions that, when executed by the processor, cause the processor to render an image on a user interface of the control terminal. The image is captured by an imaging device coupled to the UAV and is associated with a view of the imaging device. The instructions further cause the processor to detect, via the user interface, a gesture-based input including one or more reference points in the image and indicating a view change of the imaging device, determine a type of the gesture-based input by analyzing the one or more reference points, and generate control data based on the type of the gesture-based input to control at least one of the UAV or the imaging device for the view change of the imaging device.

Abstract: In some examples, a system executes a program that generates a user interface (UI) screen, provides a user input event to the program during execution, and captures images of the UI screen before and after the user input event. The system determines, based on the captured images, whether a first region of the UI screen changed in response to the user input event, and indicates the first region as a user interactive region and adds an element representing the user interactive region to a representation of user interactive regions of a UI of the program.

Abstract: An imaging control method for an unmanned aerial vehicle (“UAV”) includes receiving a video capturing instruction from a control terminal, determining, based on an imaging scene, a combined action mode, and capturing a video based on the combined action mode. The combined action mode includes a plurality of action modes, the plurality of action modes are different from each other, and the plurality of action modes include at least one of a type of the plurality of action modes, an arrangement order of the plurality of action modes, a flight trajectory of each of the plurality of action modes, a composition rule for the each of the plurality of action modes, or a flight duration of the each of the plurality of action modes.

Abstract: A method for acquiring a target for a movable object includes providing a solicitation signal in response to receiving an initialization signal, detecting an action by one or more potential candidates in response to the solicitation signal, and identifying a target from the one or more potential candidates based on the detected action.

Abstract: A method for controlling a movable object includes obtaining an expected height of the movable object, obtaining a measured height of the movable object relative to a ground, and controlling a height of the movable object according to the expected height and the measured height.

Abstract: A method of controlling a movable object to track a target includes determining a difference between a desired height and a measured height of the movable object, determining a reference speed of the movable object or the target, and adjusting the movable object based on the reference speed and the difference between the desired height and the measured height.

Abstract: Embodiments of the disclosure provide systems and methods for measuring performance of a web page and elements of the web page. According to one embodiment, web page performance measurement can comprise initiating measurement of performance of a web page rendered by a client device. The web page can comprise a plurality of elements and the plurality of elements can comprise at least one Web Component element. Performance of the web page can be monitored based on interaction with the client device and one or more performance metrics for each of the elements of the web page receive can be received from the client device. A set of performance metrics for the web page can be maintained. The set of performance metrics can comprise server-side performance metrics based on the monitoring of the performance of the web page and client-side performance metrics received from the client device.

Abstract: Methods, apparatuses, and non-transitory computer-readable medium for operating a movable object, the method including obtaining image data based on one or more images captured by an imaging sensor on board the movable object. Each of the one or more images includes at least a portion of a first human body. The method also includes identifying a first indication of the first human body in a field of view of the imaging sensor based on the image data, and causing the movable object to operate in response to the identified first indication of the first human body in the field of view of the imaging sensor.

Abstract: In some examples, a system executes a program that generates a user interface (UI) screen, provides a user input event to the program during execution, and captures images of the UI screen before and after the user input event. The system determines, based on the captured images, whether a first region of the UI screen changed in response to the user input event, and indicates the first region as a user interactive region and adds an element representing the user interactive region to a representation of user interactive regions of a UI of the program.

Abstract: An imaging method includes determining a target position in an imaging frame of an image capturing mechanism connected with a positioning mechanism; detecting a human face from a scene captured by the imaging capturing mechanism; determining a current position of the detected human face in the imaging frame; calculating a positional relationship between the current position and the target position; calculating motion parameters of the positioning mechanism according to the positional relationship; and outputting a control instruction to move the positioning mechanism to move the image capturing mechanism according to the motion parameters so as to position a facial feature of the detected human face at the target position.

Abstract: An imaging control method for an unmanned aerial vehicle (“UAV”) includes determining a combined action mode to be used when the UAV performs imaging, the combined action mode comprising at least two action modes. The imaging control method also includes generating a combined operation instruction based on the combined action mode. The imaging control method further includes transmitting the combined operation instruction to the UAV to enable the UAV to fly based on the combined operation instruction and to capture a video.

Abstract: A computer-implemented method for controlling an unmanned aerial vehicle (UAV) includes identifying a set of target markers based on a plurality of images captured by an imaging device carried by the UAV. The set of target markers includes at least two or more types of target markers that are in close proximity to be detected within a same field of view of the imaging device. The method further includes determining a spatial relationship between the UAV and the set of target markers based at least in part on the plurality of images, and controlling the UAV to approach the set of target markers based at least in part on the spatial relationship while controlling the imaging device to track the set of target markers such that the set of target markers remains within the same field of view of the imaging device.

Abstract: A method for controlling a movable object to track a target object includes determining a change in one or more features between a first image frame and a second image frame, and adjusting a movement of the movable object based on the change in the one or more features between the first image frame and the second image frame. The one or more features are associated with the target object, and the first image frame and the second image frame are captured at different points in time using an imaging device on the movable object.