Read e-book online Application of Optical Fourier Transforms PDF

By Henry Stark

ISBN-10: 0126632200

ISBN-13: 9780126632200

ISBN-10: 0323145930

ISBN-13: 9780323145930

Show description

Read or Download Application of Optical Fourier Transforms PDF

Best imaging systems books

Practical handbook on image processing for scientific and - download pdf or read online

The second one variation of a bestseller, this booklet is a pragmatic advisor to picture processing for the typical and technical sciences group. scholars, practitioners, and researchers can achieve speedy entry to a legitimate simple wisdom of picture processing through referencing basic ideas within the usual sciences.

New PDF release: Image processing

Self-contained textual content masking functional photograph processing tools and thought for snapshot texture research. recommendations for the research of texture in electronic photos are necessary to more than a few functions in components as various as robotics, defence, drugs and the geo-sciences. In organic imaginative and prescient, texture is a crucial cue permitting people to discriminate gadgets.

Read e-book online Content-Based Video Retrieval: A Database Perspective PDF

The world of content-based video retrieval is a truly scorching zone either for learn and for advertisement purposes. as a way to layout potent video databases for functions corresponding to electronic libraries, video creation, and numerous web purposes, there's a nice have to advance powerful concepts for content-based video retrieval.

Read e-book online Distributed Embedded Smart Cameras: Architectures, Design PDF

This e-book addresses dispensed embedded clever cameras –cameras that practice on board research and collaborate with different cameras. This e-book offers the cloth required to raised comprehend the architectural layout demanding situations of embedded shrewdpermanent digicam platforms, the hardware/software surroundings, the layout strategy for and purposes of disbursed clever cameras including the state of the art algorithms.

Extra resources for Application of Optical Fourier Transforms

Example text

6-12) we can see that only when W(p) > 0 are we assured that a small bias ensures that W(p) will be concentrated near the origin. A. The Minimum-Bias Window Pair The solution to the bias minimization theorem is obtained with the help of the Fejer-Riesz theorem [8, p. 152]. We note that the one-dimensioned form of this problem has been considered in the literature by Papoulis [9] and that the solution to the two-dimensioned problem has been treated by Stark and Dimitriadis [10]. Hence we shall give the solution here and refer the reader to the listed references for details.

Coherent-Optical Processor As discussed in Chapter 1, the ease with which a lens can perform the Fourier transformation of a two-dimensional distribution is certainly one of the most important assets of coherent-optical processing. Perhaps even more important is the fact that the spectrum of the input is physically accessible and therefore can be manipulated simply by placing masks or optical filters in the Fourier transform plane. The optical processor of Fig. 2-1 is some­ times called, for obvious reason, a 4-F system.

Smoothing in the frequency plane can be done by analog or digital techniques. Analog smoothing with a uniform window is demonstrated in Figs. 7-2. 7-1 is an estimate of the spectrum offilmgrain 6 X 10 E S D 3h cr \- o UJ Q. CO 32 64 96 128 160 CYCLES / m m FIG. 7-1. Inadequate smoothing of the spectral estimate with a uniform frequency plane window that is too narrow. The window diameter here is 50 μιη. 1. 25 THEORY OF THE OPTICAL FOURIER TRANSFORM 6 X 10 E D I- o ÜJ £L 160 CYCLES / m m FIG. 7-2.

Download PDF sample

Application of Optical Fourier Transforms by Henry Stark

by John

Rated 4.15 of 5 – based on 22 votes