Figure-ground organization of 3-D scenes

Patent metadata

Field	Value
Publication number	US-9225964-B2
Application number	US-201214001227-A
Country	US
Kind code	B2
Filing date	Feb 24, 2012
Priority date	Feb 24, 2011
Publication date	Dec 29, 2015
Grant date	Dec 29, 2015

Abstract

Systems and methods for processing a pair of 2-D images are described. In one example, a stereoscopic set of images is converted into a collection of regions that represent individual 3-D objects in the pair of images. In one embodiment, the system recovers the 3-D point P for each point p that appears in both images. It estimates the 3-D orientation of the floor plane, and the image capture planes and their height from the floor. The system then identifies the collection B of points P that do not represent points on the floor and generates a projection C of B onto a plane parallel to the floor. It blurs the projection C and identifies peaks in the blurred image, then fits symmetric figures to the points in C around the identified peaks. The system projects the 3-D figures associated with the symmetric figures back onto the 2-D images.

First claim

What is claimed is:

1. A method for locating objects in a pair of two-dimensional images of a three-dimensional scene taken by an imaging device having two image capture planes, where the scene includes a floor, the method comprising:
recovering a 3-D point P for each of a plurality of points p that appear in both of the two-dimensional images;
estimating a 3-D orientation of the floor, a 3-D orientation of the image capture planes, and a height of the image capture planes from…

Assignees

• Pizlo Zygmunt
• Sawada Tadamasa
• Li Yunfeng
• Purdue Research Foundation

Inventors

• Pizlo Zygmunt
• Sawada Tadamasa
• Li Yunfeng

Classifications

• G06T7/73 Primary

  Physics · mapped topic

• G06T7/593

  Physics · mapped topic

• H04N13/271

  Electricity · mapped topic

• H04N13/204 Primary

  Electricity · mapped topic

• G06T2207/10012

  Physics · mapped topic