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
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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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