Results 31 to 40 of about 1,860,088 (200)

Sensing Approaches and Reconstruction Methods for Improved Lensless Imaging [PDF]

, 2023
Lensless imaging system is a novel alternative to traditional camera design where the lensof the camera is replaced with another optical encoder(coded mask) that is thin, flat, and potentially inexpensive.
Zheng, Yucheng
core   +1 more source

Quantitative phase imaging through an ultra-thin lensless fiber endoscope

Light: Science & Applications, 2022
Graphical abstract for Quantitative phase imaging through an ultra-thin lensless fiber endoscope.
Jiawei Sun, Jiachen Wu, Song Wu, Ruchi Goswami, Salvatore Girardo, Liangcai Cao, Jochen Guck, Nektarios Koukourakis, Juergen W. Czarske   +8 more
doaj   +1 more source

LenslessPiCam: A Hardware and Software Platform for Lensless Computational Imaging with a Raspberry Pi [PDF]

This toolkit has everything you need to perform imaging with a lensless camera. We make use of a low-cost implementation of DiffuserCam, namely replacing the lens with a piece of tape and using the Raspberry Pi HQ camera sensor.
Simeoni, Matthieu, Bezzam, Eric, Kashani, Sepand, Vetterli, Martin   +3 more
core   +2 more sources

Mask-modulated lensless imaging with multi-angle illuminations

, 2018
Support materials for the paper: Mask-modulated lensless imaging with multi-angle ...
Guoan Zheng (4764957)
core   +2 more sources

Wide field-of-view lensless fluorescence imaging device with hybrid bandpass emission filter

AIP Advances, 2019
We demonstrate a highly sensitive lensless fluorescence imaging device with a wide field-of-view by using a hybrid bandpass filter composed of interference filters, an absorption filter, and a fiber optic plate.
Kiyotaka Sasagawa, Yasumi Ohta, Mamiko Kawahara, Makito Haruta, Takashi Tokuda, Jun Ohta   +5 more
doaj   +1 more source

Towards attosecond imaging at the nanoscale using broadband holography-assisted coherent imaging in the extreme ultraviolet

Communications Physics, 2021
The inherently broad bandwidth of attosecond pulses conflicts with the coherence requirements of lensless imaging. Here, broadband holography-assisted coherent imaging is demonstrated with a resolution of less than 35 nm.
Wilhelm Eschen, Sici Wang, Chang Liu, Robert Klas, Michael Steinert, Sergiy Yulin, Heide Meißner, Michael Bussmann, Thomas Pertsch, Jens Limpert, Jan Rothhardt   +10 more
doaj   +1 more source

Coded Illumination for 3D Lensless Imaging

IEEE Open Journal of Signal Processing, 2022
Mask-based lensless cameras offer a novel design for imaging systems by replacing the lens in a conventional camera with a layer of coded mask. Each pixel of the lensless camera encodes the information of the entire 3D scene.
Yucheng Zheng, M. Salman Asif
doaj   +1 more source

Fabrication of Integrated Lensless Cameras via UV-Imprint Lithography

IEEE Photonics Journal, 2022
We report on the construction of a lensless camera with a phase-modulating mask layer integrated directly on an image sensor using the UV-imprint lithography method.
Yujin Lee, Hyesuk Chae, Kyung Chul Lee, Nakkyu Baek, Taeyoung Kim, Jaewoo Jung, Seung Ah Lee   +6 more
doaj   +1 more source

Enhancement of Partially Coherent Diffractive Images Using Generative Adversarial Network

AI, 2022
We present a deep learning-based generative model for the enhancement of partially coherent diffractive images. In lensless coherent diffractive imaging, a highly coherent X-ray illumination is required to image an object at high resolution.
Jong Woo Kim, Marc Messerschmidt, William S. Graves   +2 more
doaj   +1 more source

Super-Resolution Lensless Imaging of Cells Using Brownian Motion

Applied Sciences, 2019
The lensless imaging technique, which integrates a microscope into a complementary metal oxide semiconductor (CMOS) digital image sensor, has become increasingly important for the miniaturization of biological microscope and cell detection equipment ...
Yuan Fang, Ningmei Yu, Yuquan Jiang
doaj   +1 more source