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Analog image processing

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Not to be confused with Digital image processing.

Analog image processing is the use of an optical computer to process physical, optical images [1] formed by light waves coming from an object, as opposed to the digital image processing [2] and its use of digital computers to process pixelated, digital images. Correspondingly, a range of digital image processing techniques possess direct physical analogs. For example, fast Fourier transform algorithms are commonly implemented in digital phase correlation and other digital image processing techniques.[3] [4] These digital Fourier transforms can be considered to be the digitized approximation of methods utilizing Fourier transforming properties of an ideal lens.[5]

References

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  1. ^ Momeni, Ali; Rouhi, Kasra; Fleury, Romain (2022年01月01日). "Switchable and simultaneous spatiotemporal analog computing with computational graphene-based multilayers" (PDF). Carbon. 186: 599–611. arXiv:2104.10801 . Bibcode:2022Carbo.186..599M. doi:10.1016/j.carbon.202110001 . ISSN 0008-6223.
  2. ^ Burger, Wilhelm; Burge, Mark J. (2022). "Digital Image Processing" . Texts in Computer Science. doi:10.1007/978-3-031-05744-1. ISBN 978-3-031-05743-4. ISSN 1868-0941.
  3. ^ Preibisch, Stephan; Saalfeld, Stephan; Tomancak, Pavel (2009年04月03日). "Globally optimal stitching of tiled 3D microscopic image acquisitions". Bioinformatics. 25 (11): 1463–1465. doi:10.1093/bioinformatics/btp184. ISSN 1367-4811. PMC 2682522 . PMID 19346324.
  4. ^ Kyeremah, Charlotte; La, Jeffrey; Gharbi, Mohamed Amine; Yelleswarapu, Chandra S. (2022年03月01日). "Exploring different textures of a nematic liquid crystal for quantitative Fourier phase contrast microscopy" . Optics & Laser Technology. 147 107631. Bibcode:2022OptLT.14707631K. doi:10.1016/j.optlastec.2021.107631. ISSN 0030-3992.
  5. ^ Lugt, A.V. (April 1964). "Signal detection by complex spatial filtering". IEEE Transactions on Information Theory. 10 (2): 139–145. doi:10.1109/tit.1964.1053650. hdl:2027.42/8080 . ISSN 0018-9448.


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