Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Weijuan Qu"'
Publikováno v:
Ecological Indicators, Vol 158, Iss , Pp 111378- (2024)
Intensive human activities have caused serious damage to the natural environment and threatened ecosystem services, while the relationships between ecosystem services at different spatial scales vary to some extent. Therefore, identifying different p
Externí odkaz:
https://doaj.org/article/73eca4d255e14ccd855dfab2a481b61a
Autor:
Dingnan Deng, Weijuan Qu
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 3, Pp 1-9 (2020)
A fast aberrations compensation method for digital holographic microscopy based on phase transformation is proposed. Phase transformation for original unwrapped phase can be done using rotation transformation with 180° and reflection transformation.
Externí odkaz:
https://doaj.org/article/21d9183ecc2c454587e9a69de22c9c27
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-9 (2018)
A new phase retrieval technique in digital holographic microscopy (DHM) with three defocused holograms is proposed. Given the defocusing distance, the phase distributions of tested specimen can be reconstructed with a simple algebraic equation. We ha
Externí odkaz:
https://doaj.org/article/ef4edc47e6874bb1adf359f32f45c80d
Autor:
Xufang Zhang, Yu Yang, Minghua Zhao, Rongqing Han, Shijie Yang, Xiaojie Wang, Xiantao Tang, Weijuan Qu
Publikováno v:
International Journal of Environmental Research and Public Health; Volume 19; Issue 23; Pages: 15681
With the intensification of conflicts between different ecosystem services, how to achieve a win-win situation between socio-economic development and ecological protection is an important issue that needs to be addressed nowadays. In particular, how
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::acc908a8c53177412c3f935c99115ca2
Autor:
Weijuan, Qu, Oi Choo, Chee, Tan Rongwei, Lewis, Qiangsheng, Xu, Zhaomin, Wang, Zhenzhong, Xiao, Asundi, Anand
Publikováno v:
In Optics and Lasers in Engineering 2012 50(4):563-567
Autor:
Weijuan Qu, Dingnan Deng
Publikováno v:
IEEE Photonics Journal, Vol 12, Iss 3, Pp 1-9 (2020)
A fast aberrations compensation method for digital holographic microscopy based on phase transformation is proposed. Phase transformation for original unwrapped phase can be done using rotation transformation with 180° and reflection transformation.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2dae95433d75ad8d10c2fab54d2e7e3
https://ieeexplore.ieee.org/document/9070194/
https://ieeexplore.ieee.org/document/9070194/
Publikováno v:
Optics express. 29(22)
We present a single-shot wavelength-multiplexing technique for off-axis digital holography based on a spectral filter. Only a spectral filter is inserted between beam splitter and mirror in reflection off-axis digital holography (RODH). The spectral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03bb57c27986d47408a0d7422ad5a465
https://pubmed.ncbi.nlm.nih.gov/34809087
https://pubmed.ncbi.nlm.nih.gov/34809087
Publikováno v:
IEEE Photonics Journal, Vol 10, Iss 1, Pp 1-9 (2018)
A new phase retrieval technique in digital holographic microscopy (DHM) with three defocused holograms is proposed. Given the defocusing distance, the phase distributions of tested specimen can be reconstructed with a simple algebraic equation. We ha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ad9bfb42199a96e0b69ef9e3903fae81
https://ieeexplore.ieee.org/document/8187637/
https://ieeexplore.ieee.org/document/8187637/
Publikováno v:
Optik. 140:291-298
Compared to a conventional optical lens with spherical surfaces, an aspheric lens has many merits. However, due to the nonlinearity in its mathematical expression, its characterization is quite difficult. In this paper, we proposed a new method to co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b48d2b4eb407ddf55047e1b6a47769d3
https://doi.org/10.1016/j.ijleo.2017.02.094
https://doi.org/10.1016/j.ijleo.2017.02.094
Publikováno v:
Optics and Lasers in Engineering. 88:313-318
A novel method for testing aspheric lenses using digital holography with an electrically tunable lens (ETL) is proposed and experimentally verified. The ETL generates a tunable deformed wavefront which helps to decrease the high gradient of aspheric
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9610063ac5dd127ff3f3be1139bd35f4
https://doi.org/10.1016/j.optlaseng.2016.09.002
https://doi.org/10.1016/j.optlaseng.2016.09.002