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Introduction     Information Description     Functional Description     Behavioral Description

Applications     Validation Criterion     Conclusion    

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Validation Criterion

1.     Performance Bounds.

          As clarified before, the performance of the software depends on the following factors: -

a)     The Image should be scanned at a very high-resolution at least 500 dpi.

b)    The quality of the image should be very good.

c)     The noise level of the image should be low.

2.     Limitations of the software.

1)     Since the image processing doesn’t involve the use of Gabor Filter for ridge enhancement, the images obtained may have ridges whose continuity may be destroyed due to poor quality; hence after thinning, it contains many spurious minutiae that increase the number of minutiae to a large extent.

 2) The determination of the Reference point, which requires the determination of core & delta, was not feasible at the present stage as it required a bank of 8 Gabor filters including all the 8 orientations of the central whorl of the finger.

3) The software can only work on 500 dpi images, it gives erroneous result when 250 dpi images are considered.    

4) We are maintaining the names of users in a text file. Thus, there cannot be two or more users with the same name. The use of a database (like Oracle) instead of text files would solve the problem.                                                                                                              

3.     Future Enhancements.

1.     The Gabor Filter can be implemented in order to carry out image enhancement to a greater extent so that spurious minutiae are removed.

2.     The algorithm for the Reference point determination should be implemented.

3.     In place of using text file database Oracle 8i database should be used & in order to do it the code needs to be generated using PRO C/C++ Compiler. This should in effect optimize the storage and searching operations along with comparison.

4.     The modules should be improved in order to include the possibilities of rotated and translated fingerprints of the person whose information   has already been stored in the database.

5.     The thumb pad fingerprint scanner should be used in order to scan the images.