Pts Corporation

Altera Corporation

David L Cook

Adityo Prakash

Edward R Ratner

Eniko Fodor

John Chen

John S Chen

In one embodiment according to the present invention, relative z-ordering of segments in a digital image is determined. A method comprises forward and backward motion matching of image regions to determine overlap, followed by the creation of relationships (e.g., pairwise relationships) between regions and comparing the result with the original image to determine the relative z-ordering.

Method of determining relative z-ordering in an image and method of using same

Method of determining relative Z-ordering in an image and method of using same

An image segmenter uses one or more techniques to accurately segment an image, including the use of a progressive flood fill to fill incompletely bounded segments, the use of a plurality of scaled transformations and guiding segmentation at one scale with segmentation results from another scale, detecting edges using a composite image that is a composite of multiple color planes, generating edge chains using multiple classes of edge pixels, generating edge chains using the plurality of scaled transformations, and/or filtering spurious edges at one scale based on edges detected at another scale.

Method and apparatus for digital image segmentation

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Playa Del Rey, CA, United States of America

David L Cook