Ryan T Wilson

US Patent:

20110188741, Aug 4, 2011

Filed:

Apr 8, 2011

Appl. No.:

13/082702

Inventors:

Richard A. Sones - Cleveland Heights OH, US
Kris Brumbaugh - Marshallville OH, US
Ryan Wilson - Akron OH, US

Assignee:

APPLIED VISION CORPORATION - Cuyahoga Falls OH

International Classification:

G06K 9/00

US Classification:

382154

Abstract:

A method and configuration to estimate the dimensions of a cuboid. The configuration includes two image acquisition units offset from each other with at least one of the units positioned at a defined acquisition height above a background surface. Image processing techniques are used to extract a perimeter of a top surface of the cuboid, placed on the background surface, from pairs of acquired images. A height estimation technique, which corrects for spatial drift of the configuration, is used to calculate an absolute height of the cuboid. The absolute height of the cuboid is used, along with the extracted perimeter of the top surface of the cuboid, to calculate an absolute length and an absolute width of the cuboid. The height, length, and width may be used to calculate an estimated volume of the cuboid.