Systems and Methods for Stitching Metallographic and Stereoscopic Images

    公开(公告)号:US20170161927A1

    公开(公告)日:2017-06-08

    申请号:US14956706

    申请日:2015-12-02

    申请人: Caterpillar Inc.

    发明人: Sam Martin

    摘要: A method includes receiving a first image and a plurality of other images of a planar surface of a specimen. The method also includes identifying first scale-invariant features in the first image. The first scale-invariant features are based on a scale-invariant feature transform of the first image. The method includes storing the first scale-invariant features in a grouping. The method includes, for each respective image of the plurality of other images, identifying scale-invariant features based on a scale-invariant feature transform of the respective image; matching the scale-invariant features to the grouping; based on the matching, determining a planar homography of the respective image with respect to the grouping; and adding the scale-invariant features of the respective image to the grouping. The method also includes stitching the first image and the plurality of other images into a composite image based on the planar homographies. A field of view of the specimen in the composite image is greater than a field of view of at least one of the first image or the plurality of other images.