Zobrazeno 1 - 10
of 4 029
pro vyhledávání: '"Modulation Transfer Function"'
Autor:
Schmid R, Borkenstein AF
Publikováno v:
Clinical Ophthalmology, Vol Volume 18, Pp 1921-1932 (2024)
Ruediger Schmid,1 Andreas F Borkenstein2 1accuratis, Practice for Refractive Eye Surgery, Ulm, 89073, Germany; 2Borkenstein & Borkenstein, Private Practice at Privatklinik der Kreuzschwestern, Graz, 8010, AustriaCorrespondence: Ruediger Schmid, accur
Externí odkaz:
https://doaj.org/article/d53551ca95c9420aa85fc235b751eeec
Autor:
Chatsuda Songsaeng, Johannes Köhrer, Markus Ortner, Lukas Zalka, Elisabeth Salomon, Sten Huber, Peter Homolka, Christian Kollmann, Michael Figl, Johann Hummel
Publikováno v:
Frontiers in Physics, Vol 12 (2024)
The assessment of clinical image quality on ultrasound is currently often subjective. While image quality factors such as contrast response or depth of penetration can be evaluated semi-automatically, the evaluation of high contrast resolution requir
Externí odkaz:
https://doaj.org/article/a43fdb8266f942d7a2229f69ed2e570c
Autor:
Kamil B. Alıcı
Publikováno v:
Havacılık ve Uzay Teknolojileri Dergisi, Vol 17, Iss Special Issue, Pp 19-29 (2024)
We compute the optical transfer function and corresponding satellite image estimate in order to test validity of our modulation transfer function (MTF) extraction algorithms. The test targets allow MTF computation by using slanted edge and sine wave
Externí odkaz:
https://doaj.org/article/c4fdbf2163ee400d903e71828bd60722
Autor:
Anzhen Li, Xiaowei Yang, Wei Wang, Wenbin Huang, Hui Ding, Ke Nie, Tan Zhong, Shisi Hu, Zhenduo Yang, Xingwu Zhong
Publikováno v:
BMC Ophthalmology, Vol 24, Iss 1, Pp 1-10 (2024)
Abstract Background This study aimed to compare the visual outcomes of the first operated eyes with those of the second operated eyes following small-incision lenticule extraction (SMILE). Methods A total of 202 patients (404 eyes) underwent SMILE us
Externí odkaz:
https://doaj.org/article/debd09ef5e4e4ffb9e36228e02949264
Autor:
Sonal Shah, Onkar H. Pirdankar, Lomesh D. Patil, Siddharth Sheth, Pooja Jain, Rahul Saradge, Smitesh Shah
Publikováno v:
Journal of Clinical Ophthalmology and Research, Vol 12, Iss 2, Pp 166-168 (2024)
The purpose is to describe image quality metrics such as modulation transfer function (MTF) and Strehl ratio and higher order aberration (HOA) with corneo scleral lens (CSL) in keratoconus. A 25-year-old male visited the outpatient department with a
Externí odkaz:
https://doaj.org/article/2e3c7209091e46c1a317c436727d1a44
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 20150-20163 (2024)
Image sharpness assesses detail visibility in remote-sensing images and measures sensors' details resolution capability. Sensor aging and environmental changes can degrade image sharpness and quality. The Gaofen (GF) satellites provide diverse remote
Externí odkaz:
https://doaj.org/article/63a00fe3f17c43818bd7061d3e998753
Autor:
Dayeon Lee, Dong Sik Kim
Publikováno v:
IEEE Access, Vol 12, Pp 153019-153029 (2024)
In this paper, we propose a novel subpixel registration algorithm by maximizing the amplitude response of the convex combination of an image pair, which is obtained from a slant-edge phantom as a fiducial mark. This algorithm does not rely on resampl
Externí odkaz:
https://doaj.org/article/df6ed522f1eb4dfbbaeab01e7ab70341
Publikováno v:
Remote Sensing, Vol 16, Iss 21, p 3998 (2024)
To address the issues of image blurring and color distortion in hazy conditions, an image restoration method based on a parametric analytical modulation transfer function model is proposed under turbid atmospheric conditions. A source database is est
Externí odkaz:
https://doaj.org/article/2da2a6e30f9040adbbb61b35fcd18ede
Publikováno v:
Clinical Ophthalmology, Vol Volume 17, Pp 3915-3923 (2023)
Grzegorz Łabuz, Weijia Yan, Ramin Khoramnia, Gerd U Auffarth The David J. Apple Center for Vision Research, Department of Ophthalmology, University Hospital Heidelberg, Heidelberg, 69120, GermanyCorrespondence: Grzegorz Łabuz, Universit
Externí odkaz:
https://doaj.org/article/eb55040f23b74721b6d09ea3736d244f