公开(公告)号：US20170004341A1

公开(公告)日：2017-01-05

申请号：US14788662

申请日：2015-06-30

Applicant: Synaptics Incorporated

Inventor： Omar OREIFEJ ,  Kuntal SENGUPTA ,  Adam SCHWARTZ ,  Krishna CHINNI

IPC: G06K9/00 ,  G06K9/62

CPC classification number: G06K9/001 ,  G06K9/0004 ,  G06K9/6202

Abstract: Systems and methods for aligning images are disclosed. A method includes: receiving a first skeletonized biometric image; generating a first coarse representation of the first skeletonized biometric image; identifying a set of candidate transformations that align the first skeletonized biometric image to a second skeletonized biometric image based on comparing transformed versions of the first coarse representation to a second coarse representation of the second skeletonized biometric image; selecting a first candidate transformation as the candidate transformation that minimizes a difference metric between a transformed version of the first skeletonized biometric image and the second skeletonized biometric image; and determining whether the first skeletonized biometric image transformed by the first candidate transformation matches the second skeletonized biometric image, wherein the first skeletonized biometric image transformed by the first candidate transformation matches the second skeletonized biometric image if the difference metric satisfies a threshold.

Abstract translation: 公开了用于对准图像的系统和方法。 一种方法包括：接收第一骷髅生物图像; 生成所述第一骨架化生物图像的第一粗略表示; 基于将所述第一粗略表示的变换版本与所述第二骨架化生物图像的第二粗略表示进行比较来识别将所述第一骨架化生物图像与第二骨架生物图像对准的候选变换集合; 选择第一候选变换作为最小化第一骨架化生物图像的变换版本与第二骨架化生物图像之间的差异度量的候选变换; 以及确定由所述第一候选变换变换的所述第一骨架化生物图像是否与所述第二骨架化生物图像匹配，其中如果所述差值度量满足阈值，则由所述第一候选变换变换的所述第一骨架化生物图像与所述第二骨架化生物图像匹配。