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    End-to-end optimization of optics and image processing for achromatic extended depth of field and super-resolution imaging

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    Type
    Article
    Authors
    Sitzmann, Vincent
    Diamond, Steven
    Peng, Yifan
    Dun, Xiong
    Boyd, Stephen
    Heidrich, Wolfgang cc
    Heide, Felix
    Wetzstein, Gordon
    KAUST Department
    Visual Computing Center (VCC)
    Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division
    Computer Science Program
    Date
    2018-07-31
    Online Publication Date
    2018-07-31
    Print Publication Date
    2018-07-30
    Permanent link to this record
    http://hdl.handle.net/10754/630336
    
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    Abstract
    In typical cameras the optical system is designed first; once it is fixed, the parameters in the image processing algorithm are tuned to get good image reproduction. In contrast to this sequential design approach, we consider joint optimization of an optical system (for example, the physical shape of the lens) together with the parameters of the reconstruction algorithm.We build a fully-differentiable simulation model that maps the true source image to the reconstructed one. The model includes diffractive light propagation, depth and wavelength-dependent effects, noise and nonlinearities, and the image post-processing. We jointly optimize the optical parameters and the image processing algorithm parameters so as to minimize the deviation between the true and reconstructed image, over a large set of images. We implement our joint optimization method using autodifferentiation to efficiently compute parameter gradients in a stochastic optimization algorithm. We demonstrate the efficacy of this approach by applying it to achromatic extended depth of field and snapshot super-resolution imaging.
    Citation
    Sitzmann V, Diamond S, Peng Y, Dun X, Boyd S, et al. (2018) End-to-end optimization of optics and image processing for achromatic extended depth of field and super-resolution imaging. ACM Transactions on Graphics 37: 1–13. Available: http://dx.doi.org/10.1145/3197517.3201333.
    Sponsors
    The authors would like to thank Xu Liu and Liang Xu from the State Key Lab of Modern Optical Instrumentation, Zhejiang University, and the KAUST Visual Computing Center for support in designing and prototyping of DOEs. This project was supported by an NSF CAREER award (IIS 1553333), an NSF Graduate Research Fellowship (DGE-114747), a Sloan Fellowship, a Terman Faculty Fellowship, a Stanford Graduate Fellowship, the Intel Compressive Sensing Alliance, and by the KAUST Office of Sponsored Research through the Visual Computing Center CCF grant.
    Publisher
    Association for Computing Machinery (ACM)
    Journal
    ACM Transactions on Graphics
    DOI
    10.1145/3197517.3201333
    Additional Links
    https://dl.acm.org/citation.cfm?doid=3197517.3201333
    ae974a485f413a2113503eed53cd6c53
    10.1145/3197517.3201333
    Scopus Count
    Collections
    Articles; Computer Science Program; Visual Computing Center (VCC); Computer, Electrical and Mathematical Sciences and Engineering (CEMSE) Division

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