Pattern Recognition and Image Analysis: Third International by Maneesha Singh, Sameer Singh (auth.), Sameer Singh, Maneesha PDF

By Maneesha Singh, Sameer Singh (auth.), Sameer Singh, Maneesha Singh, Chid Apte, Petra Perner (eds.)

ISBN-10: 3540288333

ISBN-13: 9783540288336

The quantity set LNCS 3686 and LNCS 3687 constitutes the refereed complaints of the 3rd foreign convention on Advances in development reputation, ICAPR 2005, held in bathtub, united kingdom in August 2005.

The papers submitted to ICAPR 2005 have been completely reviewed through as much as 3 referees consistent with paper and no more than forty% of the submitted papers have been authorised. the 1st quantity contains seventy three contributions regarding development reputation and knowledge Mining (which incorporated papers from the tracks of trend popularity equipment, wisdom and studying, and information mining); issues addressed are trend acceptance, information mining, sign processing and OCR/ rfile research. the second one quantity includes 87 contributions concerning development acceptance and photograph research (which incorporated papers from the purposes tune) and offers with safeguard and surveillance, biometrics, photo processing and clinical imaging. It additionally comprises papers from the Workshop on development acceptance for Crime Prevention.

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Read Online or Download Pattern Recognition and Image Analysis: Third International Conference on Advances in Pattern Recognition, ICAPR 2005, Bath, UK, August 22-25, 2005, Proceedings, Part II PDF

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Additional info for Pattern Recognition and Image Analysis: Third International Conference on Advances in Pattern Recognition, ICAPR 2005, Bath, UK, August 22-25, 2005, Proceedings, Part II

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For the sake of analysis, any smooth spectral window such as hanning, hamming or even a gaussian [22] window may be utilized. However, since we are also interested in enhancing and reconstructing the fingerprint image directly from the Fourier domain, our choice of window is fairly restricted. We chose a 12×12 window since it provides a good trade-off between local stationarity and processing complexity. Larger windows are unsuitable since the image will no longer be stationary within it. In order to provide suitable reconstruction during enhancement, we utilize a raised cosine window that tapers smoothly near the border and is unity at the center of the window.

7 GHz processor. 1832] seconds. This meets our requirement of processing information in less than 1 second. 7 Baseline Comparison In this section we present the results of comparison of our predictive system with the baseline approach. The baseline approach is based on the principle of using a given image enhancement algorithm on all images (without any optimisation). In our experiments, we set each of the five enhancement methods used, as baseline methods in turn and compare the results with the machine learning approach.

Simple smoothening cannot be applied since the ridge frequency is not defined in the background regions. The smoothened is obtained by the following. F (x, y) = x+1 u=x−1 y+1 v=y−1 F (u, v)W (u, v)I(u, v) y+1 v=y−1 W (u, v)I(u, v) (10) This is similar to the approach proposed in [5]. Here H,W represent the height and width of the frequency image. W(x,y) represents a gaussian smoothening kernel of size 3x3. The indicator variable I(x,y) ensures that only valid ridge frequencies are considered during the smoothening process.

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Pattern Recognition and Image Analysis: Third International Conference on Advances in Pattern Recognition, ICAPR 2005, Bath, UK, August 22-25, 2005, Proceedings, Part II by Maneesha Singh, Sameer Singh (auth.), Sameer Singh, Maneesha Singh, Chid Apte, Petra Perner (eds.)


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