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Get Advances in Electronics and Electron Physics, Vol. 63 PDF

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By Peter W. Hawkes (Ed.)

ISBN-10: 0120146630

ISBN-13: 9780120146635

This quantity includes overview articles overlaying a extensive variety of themes in photograph processing and research. the subjects lined contain photo research - which has united and harmonized a bunch of heterogeneous fabric; modern ways to the Fourier remodel; quantity theoretic transforms, that are rather beautiful for discrete, finite indications; using the Wigner distribution - which encodes either spatial and spectral info, for picture filtering; and functions of the concept that of data strength. those updated surveys are meant to supply the reader with entry to the most recent leads to the tremendous lively box of snapshot technological know-how.

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Additional resources for Advances in Electronics and Electron Physics, Vol. 63

Sample text

52 FRANCIS T. S. YU primary color images of the color transparency with a specific sampling frequency and a predescribed direction onto a monochrome film. In order to avoid the moire fringe pattern in the retrieved color image, we propose to sample one of the primary color images in one independent spatial coordinate, and the remaining two primary color images in the other independent spatial coordinate. Since any mixture of red with green or with blue colors produces a wide range of intermediate colors, we propose to encode the red color image in one independent spatial coordinate direction, and the blue and green color images in the other remaining independent coordinate direction.

8. Plots of thedeblurring width as a function of the source size for various values of the smear length W . 12 AWjW. critical size Asc, the deblurred length becomes independent of As and equal to W. Table I1 provides a brief numerical summary of the key parameters for the determination of the spatial coherence in image deblurring. From this table it is evident that the spatial coherence requirement is inversely proportional to the smear length W . That is, the longer the smearing length, the smaller the source size required.

YU 20 Assume the intensity distribution of the light source is given by Y(X09 Yo) = rect(Yo/As)4xo) (44) where 6(xo)is the Dirac delta function and rect(E) 4 {il lYol Ad2 otherwise If an extended monochromatic light source is used, the output intensity distribution of Eq. (31) becomes where and the asterisk denotes the convolution operation. Equation (45) can be reduced to the form of 21 WHITE-LIGHT IMAGE PROCESSING By substituting Eq. (46) into Eq. (34), the deblurred image irradiance is found to be 16f3A3 Ib')(y',As) = ~ ~ ~ { @ ~ , !

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Advances in Electronics and Electron Physics, Vol. 63 by Peter W. Hawkes (Ed.)


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