Hangzhou Zero Zero Technology Co., Ltd.

Hangzhou Hikvision Digital Technology Co., Ltd.

Arcsoft Corporation Limited

Long Zhang

Tong Zhang

Jin Wang

Zhaozhe Wang

Chao Zhang

Bin Guo

Jingming Liu

Anmin Xin

Chenhui Qian

Weiqi Liu

Xiaonan Cheng

Drone

A pose tracking method, a pose tracking device and an electronic device. The method comprises: acquiring continuous multiple images of a scanned object and an initial pose of an image capturing unit (S); by taking the initial pose as an initial value, acquiring, on the basis of a previous frame image and a current frame image in the continuous multiple-frame images, a first calculated pose of the current frame image by using a first algorithm (S); by taking the first calculated pose as an initial value, acquiring, on the basis of the current frame image and a current frame image reconstruction model, a second calculated pose of the current frame image by using a second algorithm (S); and updating the initial pose of the image capturing unit according to the second calculated pose, and repeating the described steps to achieve pose tracking of the image capturing unit (S).

Pose tracking method, pose tracking device and electronic device

An unmanned aerial vehicle includes a fuselage body, a foldable wing assembly and a gear assembly. The foldable wing assembly, including a pair of opposing wing members, is coupled to the fuselage body and positionable in a stowed position and a deployed position. The gear assembly positions the wing members in a stowed position and a deployed position and include a support bracket assembly and a pair of opposing hinge members. The support bracket assembly is coupled to the fuselage body and including first and second support brackets forming a cavity therebetween and a pair of opposing hinge members. The pair of opposing hinge members are pivotably coupled to the support bracket assembly and positioned within the cavity. Each hinge member is coupled to a corresponding wing member and includes a set of gear teeth extending outwardly from an arcuate radially outer surface and coupled in a meshed arrangement.

Foldable rotor blade assembly and aerial vehicle with a foldable rotor blade assembly

A method and an apparatus for storing, reading, and displaying a plurality of multimedia files are disclosed. The method for storing a plurality of multimedia files includes: obtaining file description information of each of the plurality of multimedia files to be stored, determining a file identifier according to the file description information of each multimedia file to be stored, and storing the file identifier to the file identifier data block (S); obtaining a file type and path information of each multimedia file to be stored, and storing the path information of each multimedia file to a file information data block corresponding to the file type, and sequentially storing, according to the storage order of respective file information data blocks, a file type corresponding to each file information data block to the overall information data block (S); determining storage location information of each file information data block, and storing the storage location information to an index information data block (S); and combining the file identifier data block, the overall information data block, the at least one file information data block, and the index information data block into an integrated file (S). The method stores a plurality of various multimedia files as an integrated file, which makes it convenient for a user to view the files.

Method and apparatus for storing, reading, and displaying plurality of multimedia files

Growing community of inventors

Zhejiang, China

Long Zhang