Digital Signal Processing: Fundamentals, Techniques and by Juan Zhang

By Juan Zhang

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Therefore, one can discern the saddle and stationary points as well as the edge points from other smooth GVF field according to the value of v( x, y) . To further separate the saddle and stationary points from edge points, an edge indicator function g ( x, y)  1/[1  f ( x, y)] is used, which is very small when the pixel at (x, y) is on the strong edge and has a value of one in other places. Therefore, a weighting function map can be computed that can sepearte the saddle and stationary points in the GVF field from other (smooth GVF field and image edge) pixels in the image as k ( x, y)  g ( x, y) v( x, y)  g ux2  u y2  vx2  v y2 .

S. Zhang and J. Zhou, “Centerline Extraction for Image Segmentation using Gradient and Direction Vector Flow Active Contours,” J. of Sig. and Info. Proc. 4(4), pp. 407413 (2013). G. Zhu, S. Zhang, Q. Zeng, and C. Wang, “Anisotropic virtual electric field for active contours,” Patt. Recog. , 29 (11), pp. 1659-1666 (2008). In: Digital Signal Processing (DSP) Editor: Juan Zhang ISBN: 978-1-63485-168-8 © 2016 Nova Science Publishers, Inc. Chapter 3 AVERAGE FILTERING: THEORY, DESIGN AND IMPLEMENTATION Davis Montenegro and Javier Gonzalez† Santo Tomas University, Bogota, Cundinamarca, Columbia ABSTRACT Digital filtering is a set of algorithms based on differential equations.

Watanabe, E. , Stephan, R. M. and Aredes, M. (1993). New concepts of instantaneous active and reactive powers in electrical systems with generic loads. IEEE Transactions on Power Delivery, 8(2), 697-703. 216877. In: Digital Signal Processing (DSP) Editor: Juan Zhang ISBN: 978-1-63485-168-8 © 2016 Nova Science Publishers, Inc. Chapter 4 THE REGULARIZED BANDPASS FILTER Weidong Chen* Department of Mathematics, Park University, Parkville, Missouri, US ABSTRACT In this chapter, the bandpass filter is discussed in the noisy case.

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