By Massimo Tistarelli, Mark S. Nixon
ISBN-10: 3642017924
ISBN-13: 9783642017926
This booklet constitutes the refereed court cases 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 safeguard, gait, iris, and different biometrics. furthermore there are four papers on demanding situations and competitions that presently are lower than means, therefore proposing an outline at the overview 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 cropped 3D pointcloud is then aligned according to their principal directions. The self-occluded points appear as holes in the resulting pointcloud. The pointcloud is iteratively resampled and aligned until the pose stabilizes. The pose-correction approach provides sufficient initial coarse registration for ICP and the localization of the semi-rigid regions of the 3D face by means of fixed binary masks (see Fig. (a)). For the purpose of computing accurate shape residues, the 3D scan pairs are accurately registered according to the semi-rigid regions of the face (the nose and forehead) using the ICP algorithm [5].
No further thresholding is performed if any element of t becomes less than its corresponding element in a minimum threshold vector tw (weak thresholds). t is varied between the two threshold vectors by varying a parameter α from 0 to 1, t = ts − α(ts − tw ). In the vast majority of cases, a consensus is achieved at this stage. However, if a consensus is not achieved, we threshold from the maximum possible scores towards ts and search for consensus. e the class which result from thresholding using the highest t).
Springer-Verlag Berlin Heidelberg 2009 3D Signatures for Fast 3D Face Recognition 13 This paper proposes a new face representation (called a 3D signature) which is a vector representation of the surface with vector entries tied to a canonical face coordinate system obtained by a one-time per region alignment operation. The 3D signature representation is thus ‘pre-registered’ to the surface, obviating the need for an iterative alignment procedure such as ICP to be executed at matching time. This yields a much shorter match computation time than an ICP-based matcher in recognition scenarios.
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) by Massimo Tistarelli, Mark S. Nixon
by Edward
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