Analog image processing explained

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]

Notes and References

1. Momeni . Ali . Rouhi . Kasra . Fleury . Romain . 2022-01-01 . Switchable and simultaneous spatiotemporal analog computing with computational graphene-based multilayers . Carbon . 186 . 599–611 . 10.1016/j.carbon.2021.10.001 . 0008-6223. free . 2104.10801 . 2022Carbo.186..599M .
2. Burger . Wilhelm . Burge . Mark J. . 2022 . Digital Image Processing . Texts in Computer Science . en . 10.1007/978-3-031-05744-1 . 978-3-031-05743-4 . 1868-0941.
3. Preibisch . Stephan . Saalfeld . Stephan . Tomancak . Pavel . 2009-04-03 . Globally optimal stitching of tiled 3D microscopic image acquisitions . Bioinformatics . 25 . 11 . 1463–1465 . 10.1093/bioinformatics/btp184 . 1367-4811 . 2682522 . 19346324.
4. Kyeremah . Charlotte . La . Jeffrey . Gharbi . Mohamed Amine . Yelleswarapu . Chandra S. . 2022-03-01 . Exploring different textures of a nematic liquid crystal for quantitative Fourier phase contrast microscopy . Optics & Laser Technology . 147 . 107631 . 10.1016/j.optlastec.2021.107631 . 2022OptLT.14707631K . 0030-3992.
5. Lugt . A.V. . April 1964 . Signal detection by complex spatial filtering . IEEE Transactions on Information Theory . 10 . 2 . 139–145 . 10.1109/tit.1964.1053650 . 0018-9448. 2027.42/8080 . free .