Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation

Search Page

Filters

My NCBI Filters

Results by year

Table representation of search results timeline featuring number of search results per year.

Year Number of Results
1970 1
1971 1
1975 1
1976 2
1977 1
1979 1
1982 1
1986 1
1987 1
1989 2
1990 1
1991 1
1992 1
1993 2
1994 1
1995 2
1996 1
1997 3
1998 2
1999 4
2000 3
2001 1
2002 2
2003 6
2004 5
2005 3
2006 6
2007 5
2008 6
2009 5
2010 1
2011 3
2012 6
2013 7
2014 3
2015 5
2016 4
2017 5
2018 8
2019 9
2020 7
2021 10
2022 22
2023 19
2024 2

Text availability

Article attribute

Article type

Publication date

Search Results

166 results

Results by year

Filters applied: . Clear all
Page 1
Showing results for ray cosine
Search for Ray Gosine instead (1 results)
A New X-ray Medical-Image-Enhancement Method Based on Multiscale Shannon-Cosine Wavelet.
Liu M, Mei S, Liu P, Gasimov Y, Cattani C. Liu M, et al. Entropy (Basel). 2022 Nov 30;24(12):1754. doi: 10.3390/e24121754. Entropy (Basel). 2022. PMID: 36554159 Free PMC article.
An image-enhancement algorithm based on wavelet multiscale decomposition is proposed to address the shortcomings of existing single-scale image-enhancement algorithms. The proposed algorithm is based on Shannon-Cosine wavelets by taking advantage of the interpolation, smoo …
An image-enhancement algorithm based on wavelet multiscale decomposition is proposed to address the shortcomings of existing single-scale im …
Biphasic majority voting-based comparative COVID-19 diagnosis using chest X-ray images.
Sunnetci KM, Alkan A. Sunnetci KM, et al. Expert Syst Appl. 2023 Apr 15;216:119430. doi: 10.1016/j.eswa.2022.119430. Epub 2022 Dec 21. Expert Syst Appl. 2023. PMID: 36570382 Free PMC article. Review.
The COVID-19 pandemic has been affecting the world since December 2019, and nowadays, the number of infected is increasing rapidly. Chest X-ray images are clinical adjuncts that can be used in the diagnosis of COVID-19 disease. ...In the proposed method, six different clas …
The COVID-19 pandemic has been affecting the world since December 2019, and nowadays, the number of infected is increasing rapidly. Chest X- …
Evolving deep convolutional neutral network by hybrid sine-cosine and extreme learning machine for real-time COVID19 diagnosis from X-ray images.
Wu C, Khishe M, Mohammadi M, Taher Karim SH, Rashid TA. Wu C, et al. Soft comput. 2023;27(6):3307-3326. doi: 10.1007/s00500-021-05839-6. Epub 2021 May 10. Soft comput. 2023. PMID: 33994846 Free PMC article.
The early detection of infected patients is effective in fighting COVID19. Using radiology (X-Ray) images is, perhaps, the fastest way to diagnose the patients. ...Therefore, to cope with this problem and maintain network reliability, the sine-cosine algorithm was u …
The early detection of infected patients is effective in fighting COVID19. Using radiology (X-Ray) images is, perhaps, the fastest wa …
A comparative study of information retrieval in grating-based x-ray phase-contrast imaging.
Li X, Gao H, Chen Z, Zhang L, Zhu X, Wang S, Peng W. Li X, et al. Phys Med Biol. 2019 Jun 12;64(12):125010. doi: 10.1088/1361-6560/ab0d5a. Phys Med Biol. 2019. PMID: 30840945
The cosine-model analysis (CMA) method and the small angle x-ray scattering (SAXS) method are two major types of information retrieval algorithms, commonly utilized in x-ray phase-contrast imaging with a grating interferometer. ...In this paper, we theoretica …
The cosine-model analysis (CMA) method and the small angle x-ray scattering (SAXS) method are two major types of information r …
Improved manta ray foraging optimization for multi-level thresholding using COVID-19 CT images.
Houssein EH, Emam MM, Ali AA. Houssein EH, et al. Neural Comput Appl. 2021;33(24):16899-16919. doi: 10.1007/s00521-021-06273-3. Epub 2021 Jul 7. Neural Comput Appl. 2021. PMID: 34248291 Free PMC article.
Some segmentation methods are proposed to extract regions of interest from COVID-19 CT images to improve the classification. In this paper, an efficient version of the recent manta ray foraging optimization (MRFO) algorithm is proposed based on the oppositionbased learning …
Some segmentation methods are proposed to extract regions of interest from COVID-19 CT images to improve the classification. In this paper, …
Classification of breast cancer using a manta-ray foraging optimized transfer learning framework.
Baghdadi NA, Malki A, Magdy Balaha H, AbdulAzeem Y, Badawy M, Elhosseini M. Baghdadi NA, et al. PeerJ Comput Sci. 2022 Aug 8;8:e1054. doi: 10.7717/peerj-cs.1054. eCollection 2022. PeerJ Comput Sci. 2022. PMID: 36092017 Free PMC article.
The system is built on CNN and employs transfer learning technology and metaheuristic optimization. The Manta Ray Foraging Optimization (MRFO) approach is deployed to improve the framework's adaptability. ...Extensive experiments have recorded performance parameters, inclu …
The system is built on CNN and employs transfer learning technology and metaheuristic optimization. The Manta Ray Foraging Optimizati …
Ray refraction in uniaxial crystals by Fermat's principle.
Wang P. Wang P. Appl Opt. 2018 Jun 20;57(18):4950-4954. doi: 10.1364/AO.57.004950. Appl Opt. 2018. PMID: 30117950
Fermat's principle is used to study the refraction of extraordinary rays into and out of uniaxial crystals with arbitrary optic axis orientations. The method produces direct formulas for the direction cosines of the refracted rays without the need of calculating intermedia …
Fermat's principle is used to study the refraction of extraordinary rays into and out of uniaxial crystals with arbitrary optic axis orienta …
Image registration of computed tomography of lung infected with COVID-19 using an improved sine cosine algorithm.
Dida H, Charif F, Benchabane A. Dida H, et al. Med Biol Eng Comput. 2022 Sep;60(9):2521-2535. doi: 10.1007/s11517-022-02606-z. Epub 2022 Jul 1. Med Biol Eng Comput. 2022. PMID: 35778668 Free PMC article.
In recent years, the optimization problem using meta-heuristic algorithms has been widely used in medical image registration and was a solution in diagnosing many diseases and tumors. Given the great success achieved by the sine cosine algorithm (SCA) and particle swarm op …
In recent years, the optimization problem using meta-heuristic algorithms has been widely used in medical image registration and was a solut …
Effect of a sulcus-fixated piggyback intraocular lens on negative dysphotopsia: Ray-tracing analysis.
Erie JC, Simpson MJ, Bandhauer MH. Erie JC, et al. J Cataract Refract Surg. 2019 Apr;45(4):443-450. doi: 10.1016/j.jcrs.2018.10.041. Epub 2018 Dec 18. J Cataract Refract Surg. 2019. PMID: 30578067
METHODS: Optical modeling was performed on 3 patients with negative dysphotopsia who were treated with a sulcus-fixated piggyback IOL. Ray-tracing software was used to simulate peripheral retina illumination preoperatively and postoperatively. Biometric data and ultrasound …
METHODS: Optical modeling was performed on 3 patients with negative dysphotopsia who were treated with a sulcus-fixated piggyback IOL. Ra …
Structural priors represented by discrete cosine transform improve EIT functional imaging.
Chen R, Krueger-Ziolek S, Lovas A, Benyó B, Rupitsch SJ, Moeller K. Chen R, et al. PLoS One. 2023 May 11;18(5):e0285619. doi: 10.1371/journal.pone.0285619. eCollection 2023. PLoS One. 2023. PMID: 37167237 Free PMC article.
Structural prior information can improve electrical impedance tomography (EIT) reconstruction. In this contribution, we introduce a discrete cosine transformation-based (DCT-based) EIT reconstruction algorithm to demonstrate a way to incorporate the structural prior with t …
Structural prior information can improve electrical impedance tomography (EIT) reconstruction. In this contribution, we introduce a discrete …
166 results