Results 31 to 40 of about 1,160,757 (195)

Ptychographic lens-less birefringence microscopy using a mask-modulated polarization image sensor

open access: yesScientific Reports, 2023
Birefringence, an inherent characteristic of optically anisotropic materials, is widely utilized in various imaging applications ranging from material characterizations to clinical diagnosis.
Jeongsoo Kim   +10 more
doaj   +1 more source

Wide-field, high-resolution lensless on-chip microscopy via near-field blind ptychographic modulation

open access: yes, 2020
Operation of the lensless on-chip microscopy platform using near-field blind ptychographic ...
Guoan Zheng (4764957)
core   +1 more source

Microfluidics on lensless, semiconductor optical image sensors: challenges and opportunities for democratization of biosensing at the micro-and nano-scale

open access: yesNanophotonics, 2023
Optical image sensors are 2D arrays of pixels that integrate semiconductor photodiodes and field effect transistors for efficient photon conversion and processing of generated electrons.
Hu Xinyue   +2 more
doaj   +1 more source

Robust and compact digital Lensless Holographic microscope for Label-Free blood smear imaging

open access: yesHardwareX, 2023
The lack of equipped healthcare infrastructure in isolated hard-to-reach zones exposes their population to a higher risk of complications in common diseases.
Carlos Buitrago-Duque   +2 more
doaj   +1 more source

Recent Advances in Lensless Imaging [PDF]

open access: yes, 2021
Lensless imaging provides opportunities to design imaging systems free from the constraints imposed by traditional camera architectures. Thanks to advances in imaging hardware, fabrication techniques, and new algorithms, researchers have recently ...
Robinson, Jacob T.   +8 more
core   +1 more source

Lensless Digital in-Line Holographic Microscopy for Space Biotechnology Applications [PDF]

open access: yes2019 9th International Conference on Recent Advances in Space Technologies (RAST), 2019
Biomechanical changes at cellular level can dramatically affect living organisms in both aviation and space applications. Weightlessness induces morphological alteration of cells, which leads to tissue loss. Therefore, scientists have been studying the effect of weightlessness using cell culture based biological experiments using conventional ...
Delikoyun, Kerem   +5 more
openaire   +2 more sources

Smart computational light microscopes (SCLMs) of smart computational imaging laboratory (SCILab)

open access: yesPhotoniX, 2021
Computational microscopy, as a subfield of computational imaging, combines optical manipulation and image algorithmic reconstruction to recover multi-dimensional microscopic images or information of micro-objects. In recent years, the revolution in light-
Yao Fan   +11 more
doaj   +1 more source

A Novel Approach for a Chip-Sized Scanning Optical Microscope

open access: yesMicromachines, 2021
The recent advances in chip-size microscopy based on optical scanning with spatially resolved nano-illumination light sources are presented. This new straightforward technique takes advantage of the currently achieved miniaturization of LEDs in fully ...
Joan Canals   +14 more
doaj   +1 more source

Artificial Neural Networks for Automated Cell Quantification in Lensless LED Imaging Systems

open access: yesProceedings, 2018
Cell registration by artificial neural networks (ANNs) in combination with principal component analysis (PCA) has been demonstrated for cell images acquired by light emitting diode (LED)-based compact holographic microscopy.
Agus Budi Dharmawan   +10 more
doaj   +1 more source

Nonmechanical parfocal and autofocus features based on wave propagation distribution in lensfree holographic microscopy

open access: yesScientific Reports, 2021
Performing long-term cell observations is a non-trivial task for conventional optical microscopy, since it is usually not compatible with environments of an incubator and its temperature and humidity requirements.
Agus Budi Dharmawan   +10 more
doaj   +1 more source

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