System and method for automatic detection of duplicate digital photos
AssigneesSony Corporation, Sony Electronics Inc.
InventorsPaul Jin Hwang, Rachel Thuy Nguyen, Guoxuan Zhang, Jianyu Roy Zheng
Life of this patent
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Abstract
Hashes of metadata of digital photographs on, e.g., a removable camera memory are compared against values in a hash table representing previously stored photographs on an archive computer to ensure that only previously unstored photos are copied onto the archive computer.
Claims15
A method for storing, onto a first computer storage, digital photo files on a second computer storage, comprising:
- for at least one photo file representing a digital photograph on the second computer storage, accessing metadata information related to the file, the metadata information being established by a combination of at least one of exchangeable image file (EXIF) parameters, and a file size associated with the photo file;
- comparing a hash of the metadata information related to the with data in a data structure representing photo files that have been previously stored;
- and
- determining whether to store the photo file onto the first computer storage based at least in part on the comparing, wherein the photo file is stored onto the first computer storage responsive to the hash failing to match data in the data structure, such that duplicate photos are detected and failed to be copied onto the first computer storage.
An apparatus for storing digital photo files, comprising:
- at least a first computer storage;
- and
- at least one processor configured for accessing a second computer storage to configure the processor to:
- compare hash values of information associated with photo files representing digital photographs on the second computer storage with values in a data structure;
- determine whether to store each photo file onto the first computer storage at least partially based on the compare;
- and
- responsive to a determination that a first hash value of information associated with the first photo file matches a value in the data structure, generate a user-perceptible message or the apparatus that the first photo file has been previously stored.
A non-transitory computer readable storage medium bearing instructions executable by a computer processor to undertake logic comprising:
- comparing hashes of file size, and EXIF data of respective photographs against values in a data structure representing previously stored photographs on an archive data store to ensure that only previously unstored photos are copied onto the archive data store;
- and
- responsive to a determination that, based on the comparing of hashes of file size and EXIF data against the value in the data structure, redundant photo files exist in the archive data store, ensuring that duplicate photographs are not stored in the data store.
Dependencies are inferred from the claim text.