Abstract: A photographing method includes photographing a target object during flight along a first predetermined direction, determining a surrounding-start position for flight around the target object, flying around the target object starting from the surrounding-start position, photographing the target object during the flight around the target object, determining a surrounding-end position for ending the flight around the target object, flying along a second predetermined direction starting from the surrounding-end position, and photographing the target object during flight along the second predetermined direction.

Abstract: An image encoding control method and device, a storage medium, and an unmanned aerial vehicle (UAV) are disclosed. The method includes: obtaining a frame of image data from an image sequence; encoding the image data for a first time, and obtaining first encoding quality of the image data after the first time encoding; and iteratively encoding the image data based on the first encoding quality and preset target encoding quality. Thus, a frame of image data in an image sequence is obtained and then encoded for the first time, first encoding quality is obtained, and encoding the image data is further controlled based on the first encoding quality and target encoding quality. This effectively solving the problem of a waste of bit rate resources or a shortage of bit rate resources, ensuring encoding quality of images, and meeting requirements of users. Further, the practicability of the method is improved.

Abstract: A portable function-expanding device for an electronic device is provided which comprises: a housing with a plurality of accommodating slots provided on an upper surface thereof for accommodating electronic devices respectively, wherein a function-expanding interface is provided in each of the accommodating slots for being connected with a function interface of the electronic device accommodated therein; and a function means located in the housing and connected with the function-expanding interface to fulfill the function-expanding of the corresponding electronic device. The portable function-expanding device for an electronic device fulfills the function-expanding of the corresponding electronic device conveniently. That is, the function-expanding is fulfilled conveniently as required by just inserting the electronic device into the corresponding accommodating slot and connecting the corresponding function-expanding interface in the accommodating with the function interface of the electronic device.

Abstract: A portable function-expanding device for an electronic device is provided which comprises: a housing with a plurality of accommodating slots provided on an upper surface thereof for accommodating electronic devices respectively, wherein a function-expanding interface is provided in each of the accommodating slots for being connected with a function interface of the electronic device accommodated therein; and a function means located in the housing and connected with the function-expanding interface to fulfill the function-expanding of the corresponding electronic device. The portable function-expanding device for an electronic device fulfills the function-expanding of the corresponding electronic device conveniently. That is, the function-expanding is fulfilled conveniently as required by just inserting the electronic device into the corresponding accommodating slot and connecting the corresponding function-expanding interface in the accommodating with the function interface of the electronic device.