Zobrazeno 1 - 10
of 16 659
pro vyhledávání: '"Point spread"'
Autor:
Maximilian Maier, Thomas Böhm
Publikováno v:
Small Science, Vol 4, Iss 9, Pp n/a-n/a (2024)
Confocal microscopy is an established technique with manifold applications that offers the capability to perform nondestructive through‐plane imaging. However, depth resolution typically decreases when focusing below the surface of a sample, which
Externí odkaz:
https://doaj.org/article/5d31b116eb2346f8bb46cf68012d0c6e
Publikováno v:
IEEE Photonics Journal, Vol 16, Iss 6, Pp 1-6 (2024)
The point-by point 3D scanning strategy adopted in Stimulated Emission Depletion Microscopy (STED) is time-consuming. The 3D scanning can be replaced with a 2D scanning in the non-diffracting Bessel-Bessel STED (BB-STED). In order to extract the exci
Externí odkaz:
https://doaj.org/article/18b181334c3a4da3b875eb27aac1c04b
Autor:
Hoang Nhut Huynh, Quoc Tuan Nguyen Diep, Anh Tu Tran, Congo Tak Shing Ching, Trung Nghia Tran
Publikováno v:
IEEE Access, Vol 12, Pp 128246-128254 (2024)
In Electrical Impedance Tomography, the ill-posed nature of the inverse problem and the interaction between the electric current and objects cause poor spatial resolution and blurring in the reconstructed images. This study proposes a numerical metho
Externí odkaz:
https://doaj.org/article/9712cb10b219424a808ff3603abdaa56
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 13678-13693 (2024)
Over the past 20 years, improvements in night-time light (NTL) remote sensing have spurred a resurgence of interest in the mapping of human economic activity. Nevertheless, the full potential of NTL data for urban research is constrained by a relativ
Externí odkaz:
https://doaj.org/article/10a4b37ef5a740688d325d34170928e0
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 5416-5430 (2024)
Many applications, such as agriculture and water monitoring, require frequent observations, as well as high spatial resolution. In practice, it is difficult to achieve both high resolution and temporal coverage for satellite sensors. Accordingly, sev
Externí odkaz:
https://doaj.org/article/1b1ce0e8a17249d7b6384636d21553fd
Publikováno v:
Photonics, Vol 11, Iss 10, p 933 (2024)
The distribution of diffuse spot energy can be used to sensitively evaluate the aberrations and defects of optical systems. Therefore, the objective and quantitative measurement of diffuse spot parameters is an important means to control the detectio
Externí odkaz:
https://doaj.org/article/dc5e4bd30002454faee19d530de9671f
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 11 (2024)
Introduction: In recent decades, numerous large survey projects have been initiated to enhance our understanding of the cosmos. Among these, the Vera C. Rubin Observatory’s Legacy Survey of Space and Time (LSST) stands out as a flagship project of
Externí odkaz:
https://doaj.org/article/4b76c85aad1646b1b58e5bba3b105320
Publikováno v:
Micro and Nano Engineering, Vol 22, Iss , Pp 100238- (2024)
Experimental measurement for Short Range (SR) part of PSF in EBL is essential for at least three reasons: Proximity effect correction, the study of the resolution limit of electron lithography, and characterizing the beam size of an EBL instrument. I
Externí odkaz:
https://doaj.org/article/edf8b50501fb46bf83eebf274197b9b1
Autor:
T. Cheng, T. Chenchen
Publikováno v:
Компьютерная оптика, Vol 47, Iss 4, Pp 614-619 (2023)
In the conventional single-molecule localizations and super-resolution microscopy, the pixel size of a raw image is approximately equal to the standard deviation of the point spread function. Such a raw image is referred to herein as a conventional r
Externí odkaz:
https://doaj.org/article/26be0843615e49329eaad4dc35d1db79
Publikováno v:
Engineering, Vol 27, Iss , Pp 140-149 (2023)
Subpixel localization techniques for estimating the positions of point-like images captured by pixelated image sensors have been widely used in diverse optical measurement fields. With unavoidable imaging noise, there is a precision limit (PL) when e
Externí odkaz:
https://doaj.org/article/d8a6bf8d70dc4e0895cb0601798a08c1