Implementing rich color transition curve tracking for applications
AssigneeVision Interface Technologies, LLC
InventorPeter Harmon Smith
Life of this patent
Estimating the term…
Abstract
A method of finding unique targets arranged in a unique sequence of targets in a color image applies ratio space rich colored filtering to identify a band of pixels that form a transition curve from one rich color to another. A set of transition curves with simple geometric and color properties for the entire image, are compared to a database of target properties to identify a target in an image. The targets are provided on a carrier that is attached to a surface to enable processor to identify the surface location and orientation by the targets.
Claims20
A threshold color transition curve tracking apparatus for use in a method identifying a target and an image using a transition curve formed of threshold color transition points between two color types on the target comprising:
- a carrier presented on a surface;
- and
- a plurality of unique threshold color transition targets arranged in a unique sequence on the carrier, the targets allowing identification of the location and orientation of the surface on which the targets are presented, by a camera.
A method for identifying the location and orientation of an object in an image using a threshold color transition curve tracking apparatus to identify a target in an image using a transition curve formed of threshold color transition points between two color types on the target comprising:
- providing a plurality of unique threshold color transition targets arranged in a unique sequence on a carrier;
- attaching the carrier onto a surface;
- identifying the surface on which the unique targets and sequence of targets using the unique targets and the sequence of targets to identify the location and orientation of the surface on which the set of targets are attached.
Dependencies are inferred from the claim text.