Zobrazeno 1 - 9
of 9
pro vyhledávání: '"ocis:(110.3000) Image quality assessment"'
Autor:
Efthymios, Maneas, Wenfeng, Xia, Olumide, Ogunlade, Martina, Fonseca, Daniil I, Nikitichev, Anna L, David, Simeon J, West, Sebastien, Ourselin, Jeremy C, Hebden, Tom, Vercauteren, Adrien E, Desjardins
Publikováno v:
Biomedical Optics Express
Tissue-mimicking phantoms are widely used for the calibration, evaluation and standardisation of medical imaging systems, and for clinical training. For photoacoustic imaging, tissue-mimicking materials (TMMs) that have tuneable optical and acoustic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::a6aef52f19973ef60948e2d9b67b13bf
https://pubmed.ncbi.nlm.nih.gov/29541509
https://pubmed.ncbi.nlm.nih.gov/29541509
Publikováno v:
Biomedical Optics Express
In optical coherence tomography (OCT), axial resolution is one of the most critical parameters impacting image quality. It is commonly measured by determining the point spread function (PSF) based on a specular surface reflection. The contrast transf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::801edfd44c3ba83ef1d83237d01958d5
http://europepmc.org/articles/PMC3704096
http://europepmc.org/articles/PMC3704096
Publikováno v:
Optics Express
This paper proposes an automatic point spread function (PSF) estimation method to de-blur out-of-focus optical coherence tomography (OCT) images. The method utilizes Richardson-Lucy deconvolution algorithm to deconvolve noisy defocused images with a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::66d79ff1ec338f5683cc89ddae9c0e39
http://europepmc.org/articles/PMC3178893
http://europepmc.org/articles/PMC3178893
Publikováno v:
Biomedical Optics Express
Resolution is an important figure of merit for imaging systems. We designed, fabricated and tested an optical phantom that mimics the simplicity of an Air Force Test Chart but can characterize both the axial and lateral resolution of optical coherenc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9977b8d5e53208ae297b46aa28fc3efd
https://pubmed.ncbi.nlm.nih.gov/23024923
https://pubmed.ncbi.nlm.nih.gov/23024923
Publikováno v:
Optics Express
The electron-multiplying charge-coupled device (EMCCD) camera possesses an electron multiplying function that can effectively convert the weak incident photon signal to amplified electron output, thereby greatly enhancing the contrast of the acquired
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::75de1947394f202773e14dd5a864e5dc
https://pubmed.ncbi.nlm.nih.gov/20389533
https://pubmed.ncbi.nlm.nih.gov/20389533
Publikováno v:
Biomedical Optics Express
This paper describes a digital method that is capable of automatically focusing optical coherence tomography (OCT) en face images without prior knowledge of the point spread function of the imaging system. The method utilizes a scalar diffraction mod
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d76d1c3d6403f6ca77fbe30124e1fc4d
https://doi.org/10.1364/boe.3.002774
https://doi.org/10.1364/boe.3.002774
Publikováno v:
Biomedical Optics Express
We apply phase-sensitive optical coherence tomography to image multiple nanoparticle species with two excitation wavelengths matched to their distinct absorption peaks. Using different modulation frequencies, multiple species collocated within the sa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8bf7b27a20c40b6d4360e2f7519430e8
https://doi.org/10.1364/boe.3.002579
https://doi.org/10.1364/boe.3.002579
Autor:
Anant, Agrawal, Megan, Connors, Alexander, Beylin, Chia-Pin, Liang, David, Barton, Yu, Chen, Rebekah A, Drezek, T Joshua, Pfefer
Publikováno v:
Biomedical Optics Express
We have designed, fabricated, and tested a nanoparticle-embedded phantom (NEP) incorporated into a model eye in order to characterize the point spread function (PSF) of retinal optical coherence tomography (OCT) devices in three dimensions under real
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e3cc6ecc285e516bc6457059f81dfcd0
https://doi.org/10.1364/boe.3.001116
https://doi.org/10.1364/boe.3.001116
Publikováno v:
Biomedical Optics Express
In both photoacoustic (PA) and ultrasonic (US) imaging, overall image quality is influenced by the optical and acoustical properties of the medium. Consequently, with the increased use of combined PA and US (PAUS) imaging in preclinical and clinical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21e77b729bd551fef57501cdf3719b9d
https://doi.org/10.1364/boe.2.003193
https://doi.org/10.1364/boe.2.003193