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A Novel Depth based Segmentation Approach for Offline Signature Verification
| International Journal of Computer Applications |
| Foundation of Computer Science (FCS), NY, USA |
| Volume 61 - Number 21 |
| Year of Publication: 2013 |
| Authors: Sanjay N. Gunjal, Manoj Lipton, Chetan Agrawal |
10.5120/10206-4740
|
Sanjay N. Gunjal, Manoj Lipton, Chetan Agrawal . A Novel Depth based Segmentation Approach for Offline Signature Verification. International Journal of Computer Applications. 61, 21 ( January 2013), 30-34. DOI=10.5120/10206-4740
Abstract
Signature verification is one of the most widely used biometrics for authentication. The objective of the signature verification system is to discriminate between two classes: the original and the forgery, which are related to intrapersonal and interpersonal variability. Firstly, there exists great variation even between two signatures of the same person. They never start from the same position and neither do they terminate at the same position. Also, the angle of inclination of the signatures, the relative spacing between letters of the signatures, height of letters, all vary even for the same person. Hence it becomes a challenging task to compare between two signatures of the same person. The proposed an offline signature verification system to take care of that, which is based on depth for segmentation of signature image into different parts, after that geometric center of the each segment is find out as the feature point of that segment. The number of feature points extracted from signature image is equivalent to the number segment of the signature image that is produce by specifying value of depth. The classification of the feature points utilizes two statistical parameters like mean and variance. Our proposed model has three stages: image pre-processing, feature point's extraction and classification & verification. The user introduces into the computer through scanned signature images, our technique modifies their quality by image enhancement and noise reduction techniques, to be followed by feature extraction and finally used Euclidean distance model to classification of signature either genuine or forgery. The proposed offline signature verification system used "GPDS360 signature database".
References
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