Method and Apparatus for Building Surface Representations of 3D Objects from Stereo Images

摘要

A method and apparatus for extracting surface representation from images and video data for segmenting image plane according to the surface connectivity, and identifying areas of images taken by a moving camera according to the object surfaces wherefrom the areas of images are taken, are disclosed. The invention discloses a method and apparatus comprising a plurality of processing modules for extracting from images in a video sequence the occluding contours delineating images into regions in accordance with the spatial connectivity of the correspondent visible surfaces, and diffeomorphism relations between areas of images taken from different perspective centers for identifying image areas of different frames as of the surface of same object, and specifying the fold contours of the surfaces that owns the contour, and thus producing the surface representations from video images taken from persistent objects by a moving camera.

主权项

1. A method for building representations of persistent surfaces of objects from a plurality of images of a rigid 3D scene taken from different points of observation at least comprising:
(a) Ad hoc surface sketch step producing ad hoc surface representations each for an image in said plurality of stereo images from a plurality of stereo pairs of said images; (b) Surface partial overlapping detection step producing chain-connected equivalence classes of image regions within said images from a said plurality of images and said ad hoc representations derived from said plurality of images according to said ad hoc surface sketch step; (c) An image domain relabeling step producing a consistent labeling for each persistent surface as its symbolic representation from said ad hoc representations and said chain-connected equivalence classes.