发明名称 DUPLICATE/NEAR DUPLICATE DETECTION AND IMAGE REGISTRATION
摘要 Embodiments are disclosed for detecting duplicate and near duplicate images. An exemplary method includes receiving an original image, preparing the image for fingerprinting, and calculating an image fingerprint, the fingerprint expressed as a sequence of numbers. The method further includes comparing the image fingerprint thus obtained with a set of previously stored fingerprints obtained from a set of previously stored images, and determining if the original image is either a duplicate or a near duplicate of an image in the set if the dissimilarity between the two fingerprints is less than a defined threshold T. Once a duplicate or near duplicate is detected, various defined actions may be taken, including culling the less desirable image or referring the redundancy to a user.
申请公布号 US2014270530(A1) 申请公布日期 2014.09.18
申请号 US201313888082 申请日期 2013.05.06
申请人 DROPBOX, INC. 发明人 Dwan Michael;Ren Jinpeng
分类号 G06K9/46 主分类号 G06K9/46
代理机构 代理人
主权项 1. A method of detecting duplicate and near duplicate images, comprising: receiving an original image; preparing the image for fingerprinting; calculating an image fingerprint, said fingerprint being expressed as a sequence of numbers; comparing the image fingerprint with a set of previously stored fingerprints obtained from a corresponding set of previously stored images; determining that the original image is a duplicate or a near duplicate of a previously stored image if the dissimilarity between the two fingerprints is less than a defined threshold T; and taking defined action if the image is a duplicate or a near duplicate.
地址 San Francisco CA US