Advances in Biometrics: Third International Conferences, ICB by Massimo Tistarelli, Mark S. Nixon

By Massimo Tistarelli, Mark S. Nixon

This booklet constitutes the refereed lawsuits of the 3rd overseas convention on Biometrics, ICB 2009, held in Alghero, Italy, June 2-5, 2009.

The 36 revised complete papers and ninety three revised poster papers provided have been conscientiously reviewed and chosen from 250 submissions. Biometric standards lined by way of the papers are assigned to stand, speech, fingerprint and palmprint, multibiometrics and defense, gait, iris, and different biometrics. additionally there are four papers on demanding situations and competitions that presently are below manner, hence providing an summary at the review of biometrics.

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Additional info for Advances in Biometrics: Third International Conferences, ICB 2009, Alghero, Italy, June 2-5, 2009, Proceedings (Lecture Notes in Computer Science / ... Vision, Pattern Recognition, and Graphics)

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The nearest-neighbor search assigns each point in the unknown face signature to the closest correspondent on the unknown face to that of the point in the reference face. Previous work [4] has documented that the NN approach does not pick the most representative points when areas of curvature differ between the reference and input surface. A normal search searches along the normal vector to the reference region surface at each reference region point to find the intersection between the normal and the unknown face surface which is then the corresponded point used for the 3D signature.

However, the resulting 3D signatures are not simply subsets. The reason for this is that each reference region is aligned separately. The different alignments result in different 3D signatures. Each region utilized here yields an increase in the performance of the fusion result. Selection of the reference region shape and point density plays a critical role in 3D signature generation. However, determining the ideal region shape and density to utilize is a problem that has not been addressed and most likely deserves more attention.

However, each pair belongs to the same subject. We have demonstrated in our previous research [1] that the projection on such a subspace retains most of the expression deformations while it loses a large amount of the shape from the 3D face. e. deforming a 3D facial scan to another 3D facial scan under different expressions, for the purpose of 3D face recognition. In this paper, there is no target 3D facial scan in the decomposition problem. Therefore, the projection alone is not enough. However, we considered it as a first stage in our decomposition system as it separates the unseen 3D facial scan into a part that is non-confusibly related to the neutral 3D face (the part which is lost in the projection) and another part in which confusion between expression and neutral face may occur (the part preserved during the projection on the subspace).

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