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公开(公告)号：US20200380702A1
公开(公告)日：2020-12-03
申请号：US16995109
申请日：2020-08-17
Inventor： Chang Wei He , Cheng Jie Wang , Ji Lin Li , Jin Long Peng , Ya Biao Wang , Yan Dan Zhao , Zhen Ye Gan , Yong Jian Wu , Fei Yue Huang
Abstract: A method of tracking a face includes determining a current frame from video stream data in response to receiving a face tracking instruction; detecting a position of a face in the current frame, and obtaining a historical motion trajectory of the face in the current frame; predicting the position of the face in the current frame based on the historical motion trajectory to obtain a predicted position of the face; obtaining a correlation matrix of the historical motion trajectory and the face in the current frame based on the predicted position and the detected position; and updating the historical motion trajectory based on the correlation matrix, and tracking the face in a next frame based on the updated historical motion trajectory.
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公开(公告)号：US10770050B2
公开(公告)日：2020-09-08
申请号：US15775460
申请日：2017-06-02
Inventor： Bi Lei Zhu , Ke Li , Yong Jian Wu , Fei Yue Huang
IPC: G10H1/36 , G10L21/0272
Abstract: An audio data processing method and apparatus are provided. The method includes obtaining audio data. An overall spectrum of the audio data is obtained and separated into a singing voice spectrum and an accompaniment spectrum. An accompaniment binary mask of the audio data is calculated according to the audio data. The singing voice spectrum and the accompaniment spectrum are processed using the accompaniment binary mask, to obtain accompaniment data and singing voice data.
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