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Subaperture stitching computation time optimization using a system of linear equations

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F21%3A00569037" target="_blank" >RIV/61389021:_____/21:00569037 - isvavai.cz</a>

  • Result on the web

    <a href="https://opg.optica.org/ao/viewmedia.cfm?uri=ao-60-27-8556&seq=0" target="_blank" >https://opg.optica.org/ao/viewmedia.cfm?uri=ao-60-27-8556&seq=0</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1364/AO.433312" target="_blank" >10.1364/AO.433312</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Subaperture stitching computation time optimization using a system of linear equations

  • Original language description

    Measurement of large or aspheric optical surface shapes as a single aperture using interferometry is problematic for many reasons. A typical problem is the numerical aperture limitation of the interferometer transmission element and the surface slope deviation of aspheres. This deviation typically causes vignetting and spatial aliasing on the camera. A solution is subaperture measurement and subsequent subaperture stitching. A stitching algorithm, in principle, uses overlaps between subapertures to eliminate aberrations of each subaperture to obtain a full aperture for further analysis. This process is computation time demanding and requires optimization in order to obtain a result in a reasonable time to reduce, in turn, the overall manufacturing time. In this paper, a novel, to the best of our knowledge, and fast stitching method based on a system of linear equations is proposed and mathematically described. The developed method was compared with other algorithms, and theoretical computation complexity was calculated and compared. The method was tested practically, with real data measured on spherical surfaces using QED ASI (QED Technologies aspheric stitching interferometer) and an experimental interferometer, and the results are presented. Stitching quality was quantified for results and compared to other algorithms.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10306 - Optics (including laser optics and quantum optics)

Result continuities

  • Project

    <a href="/en/project/EF16_026%2F0008390" target="_blank" >EF16_026/0008390: Partnership for excellence in superprecise optics</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2021

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Applied Optics

  • ISSN

    1559-128X

  • e-ISSN

    2155-3165

  • Volume of the periodical

    60

  • Issue of the periodical within the volume

    27

  • Country of publishing house

    US - UNITED STATES

  • Number of pages

    13

  • Pages from-to

    8556-8568

  • UT code for WoS article

    000698504300043

  • EID of the result in the Scopus database

    2-s2.0-85115263599