METHODS AND SYSTEMS OF DETECTING OBJECT BOUNDARIES

摘要

Methods and systems described herein detect object boundaries of videos. A window around the pixel may be followed in adjacent image frames of the image frame to determine object boundaries. Inconsistencies in image patches over a temporal window are detected, and each pixel of the image frame of a video is assigned an object boundary probability. The pixel may belong to a texture edge if the window content does not change throughout the adjacent image frames, or the pixel may belong to an object boundary if the window content changes. A probability value indicating the likelihood of the pixel belonging to an object boundary is determined based on the window content change and is assigned to the corresponding pixel.

主权项

1. A computer-implemented method of detecting object boundaries in a video, comprising:
identifying a pixel of an image frame of a video; defining a patch for the pixel; identifying a set of neighboring image frames for the image frame; detecting a set of patch matches to the patch from the set of neighboring image frames; and calculating an object boundary probability value for the patch corresponding to the pixel by applying a difference metric to the patch and the set of patch matches.