AUTOMATIC COMPOSITION OF VIDEO WITH DYNAMIC BACKGROUND AND COMPOSITE FRAMES SELECTED BASED ON FOREGROUND OBJECT CRITERIA

摘要

A processing device generates composite images from a sequence of images. The composite images may be used as frames of video. A foreground/background segmentation is performed at selected frames to extract a plurality of foreground object images depicting a foreground object at different locations as it moves across a scene. The foreground object images are stored to a foreground object list. The foreground object images in the foreground object list are overlaid onto subsequent video frames that follow the respective frames from which they were extracted, thereby generating a composite video.

主权项

1. A method for generating a composite output video from an input video having a sequence of frames, the method comprising:
storing a foreground object list comprising a plurality of previously extracted foreground object images, each of the foreground object images comprising a representation of a foreground object with background pixels subtracted; receiving a current video frame for processing from the sequence of frames; performing, by a processing device, a foreground/background segmentation based on a predictive model to extract a foreground object image for the current video frame; determining, by the processing device, if the foreground object image meets first predefined criteria; responsive to the foreground object image meeting the first predefined criteria, storing the foreground object image for the current frame to the foreground object list; and overlaying each of the foreground object images in the foreground object list onto the current video frame to generate a composite video frame.