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Please use this identifier to cite or link to this item: http://eprint.iitd.ac.in/handle/2074/913

Title: Image based document authentication using DCT
Authors: Garg, Gaurav
Sharma, Pramod Kumar
Chaudhury, Santanu
Keywords: Authentication
Photosignature
Discrete cosine transform application
Hashing
Issue Date: 2001
Citation: Pattern Recognition Letters, 22(6-7), 725-729
Abstract: This paper is an attempt towards obtaining a method for validation of personal identification documents such as licenses, photo IDs. The method tries to obtain a photosignature from the image document by using certain image processing techniques. The method uses discrete cosine transform (DCT) based technique to obtain the required signature. This gives a ubstantially compressed signature which is quite unique for that particular document. In case of authentication from a large database the signature can be used as hashing function for indexing. Results of experiments done on a large database have validated the approach.
URI: http://eprint.iitd.ac.in/dspace/handle/2074/913
Appears in Collections:Electrical Engineering

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