Browse Prior Art Database

Statistical Determination of Recognition Windows

IP.com Disclosure Number: IPCOM000061423D
Original Publication Date: 1986-Jun-01
Included in the Prior Art Database: 2005-Mar-09
Document File: 1 page(s) / 11K

Publishing Venue

IBM

Related People

Christy, AE: AUTHOR [+3]

Abstract

There is disclosed an interactive method for determining object recognition windows in vision assisted robotic applications.

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Statistical Determination of Recognition Windows

There is disclosed an interactive method for determining object recognition windows in vision assisted robotic applications.

To enable automated distinction of one object from another, it is necessary to describe parameters to the system particular to a given object. Typical parameters include area perimeter as well as aspect ratio. These parameters are easily obtainable for a particular picture of an object. As the object, however, is moved within the field of view, recognition parameters undergo changes. Since it is desired to recognize an object in any position and orientation, upper and lower limits, windows, on each of these parameters are required.

The present method requires ten photographs of an object. Each photograph is analyzed by the system to determine which of several objects in the photographic image is the desired image. The system then displays a box around the most likely object. If the system chosen object is incorrect, the user is able to move the box. When this iterative process is complete, recognition parameters for the object are recorded. Once recorded, the system performs statistical calculations yielding a 99.9% confidence interval.

Use of this technique enables high quality inspection applications for improperly installed assemblies or parts rejected for defects. This ability enables system development for applications where minimum human intervention is available.

Anonymous.

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