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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2074/913
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| 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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| gargima2001.pdf | | 472Kb | Adobe PDF | View/Open |
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