Patent ID: 11894021
Assignee: ALIBABA GROUP HOLDING LIMITED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. One or more non-transitory computer-readable storage media configured with instructions executable by one or more processors to cause the one or more processors to perform operations comprising:
obtaining video data;
receiving a target object description of a target object;
obtaining one or more first images from the video data by matching a plurality of target object candidates with the target object description as a target image sequence, wherein the one or more first images each comprises an image of the target object;
processing the video data to obtain one or more second images of the video data that do not contain the image of the target object;
generating a background image based on the one or more second images;
determining a target location of the target image sequence in the video data with an iterative process comprising:
determining a first location of the target image sequence in the video data;
computing a loss value for the first location of the target image sequence in the video data by increasing the loss value when the target object is blocked in the video data at the first location, and decreasing the loss value when an interactive relationship involving the target object is maintained in the video data at the first location; and
in response to the loss value for the first location being greater than a threshold value, determining a second location of the target image sequence in the video data and using the second location as the first location to compute the loss value until the loss value is less than the threshold value;

synthesizing the target image sequence with the background image based on the target location to generate a target video data;
and
displaying the target video data.