{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,2]],"date-time":"2026-06-02T04:17:11Z","timestamp":1780373831226,"version":"3.54.1"},"reference-count":51,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2022,9,20]],"date-time":"2022-09-20T00:00:00Z","timestamp":1663632000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"Science and Technology Department of Jilin Province, China","award":["20210101146JC"],"award-info":[{"award-number":["20210101146JC"]}]},{"name":"Science and Technology Department of Jilin Province, China","award":["62135015"],"award-info":[{"award-number":["62135015"]}]},{"name":"Science and Technology Department of Jilin Province, China","award":["2020YFA0714102"],"award-info":[{"award-number":["2020YFA0714102"]}]},{"name":"National Natural Science Foundation of China","award":["20210101146JC"],"award-info":[{"award-number":["20210101146JC"]}]},{"name":"National Natural Science Foundation of China","award":["62135015"],"award-info":[{"award-number":["62135015"]}]},{"name":"National Natural Science Foundation of China","award":["2020YFA0714102"],"award-info":[{"award-number":["2020YFA0714102"]}]},{"name":"National Key Research and Development Program of China","award":["20210101146JC"],"award-info":[{"award-number":["20210101146JC"]}]},{"name":"National Key Research and Development Program of China","award":["62135015"],"award-info":[{"award-number":["62135015"]}]},{"name":"National Key Research and Development Program of China","award":["2020YFA0714102"],"award-info":[{"award-number":["2020YFA0714102"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>With the successful application of the Shack\u2013Hartmann wavefront sensor in measuring aberrations of the human eye, researchers found that, when the aberration is large, the local wavefront distortion is large, and it causes the spot corresponding to the sub-aperture of the microlens to shift out of the corresponding range of the sub-aperture. However, the traditional wavefront reconstruction algorithm searches for the spot within the corresponding range of the sub-aperture of the microlens and reconstructs the wavefront according to the calculated centroid, which leads to wavefront reconstruction errors. To solve the problem of the small dynamic range of the Shack\u2013Hartmann wavefront sensor, this paper proposes a wavefront reconstruction algorithm based on the autocorrelation method and a neural network. The autocorrelation centroid extraction method was used to calculate the centroid in the entire spot map in order to obtain a centroid map and to reconstruct the wavefront by matching the centroid with the microlens array through the neural network. This method breaks the limitation of the sub-aperture of the microlens. The experimental results show that the algorithm improves the dynamic range of the first 15 terms of the Zernike aberration reconstruction to varying degrees, ranging from 62.86% to 183.87%.<\/jats:p>","DOI":"10.3390\/s22197120","type":"journal-article","created":{"date-parts":[[2022,9,21]],"date-time":"2022-09-21T00:08:09Z","timestamp":1663718889000},"page":"7120","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":28,"title":["A Method Used to Improve the Dynamic Range of Shack\u2013Hartmann Wavefront Sensor in Presence of Large Aberration"],"prefix":"10.3390","volume":"22","author":[{"given":"Wen","family":"Yang","sequence":"first","affiliation":[{"name":"Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China"},{"name":"University of Chinese Academy of Sciences, Beijing 100049, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jianli","family":"Wang","sequence":"additional","affiliation":[{"name":"Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bin","family":"Wang","sequence":"additional","affiliation":[{"name":"Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2022,9,20]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"1511","DOI":"10.1364\/AO.39.001511","article-title":"Position and Displacement Sensing with Shack-Hartmann Wave-Front Sensors","volume":"39","author":"Ares","year":"2000","journal-title":"Appl. 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