Results 41 to 50 of about 1,005,614 (301)

3D-Imaging Endoscopy Through Electronic Focusing

open access: yesIEEE Photonics Journal
Conventional endoscopic systems provide two-dimensional images of three-dimensional structures. Real depth information is lost in these systems. Therefore, depth perception relies uniquely on monocular cues, such as occlusions, shadows or motion parallax.
Ines Nohales   +4 more
doaj   +1 more source

Morphing a Stereogram into Hologram

open access: yes, 2019
This paper develops a simple and fast method to reconstruct reality from stereoscopic images. We bring together ideas from robust optical flow techniques, morphing deformations and lightfield 3D rendering in order to create unsupervised multiview images ...
Canessa, Enrique, Tenze, Livio
core   +1 more source

Metalens Eyepiece for 3D Holographic Near-Eye Display

open access: yesNanomaterials, 2021
Near-eye display (NED) systems for virtual reality (VR) and augmented reality (AR) have been rapidly developing; however, the widespread use of VR/AR devices is hindered by the bulky refractive and diffractive elements in the complicated optical system ...
Chang Wang   +6 more
doaj   +1 more source

3D Stretchable Arch Ribbon Array Fabricated via Grayscale Lithography. [PDF]

open access: yes, 2016
Microstructures with flexible and stretchable properties display tremendous potential applications including integrated systems, wearable devices and bio-sensor electronics.
Deng, Ningqin   +9 more
core   +2 more sources

Holography, and the future of 3D display

open access: yesLight: Advanced Manufacturing, 2021
The pioneers of holography, Gabor, Leith, Upatnieks, and Denisyuk, predicted very early that the ultimate 3D display will be based on this technique. This conviction was rooted on the fact that holography is the only approach that can render all optical ...
Pierre-Alexandre Blanche
doaj   +1 more source

An Advanced, Three-Dimensional Plotting Library for Astronomy [PDF]

open access: yes, 2006
We present a new, three-dimensional (3D) plotting library with advanced features, and support for standard and enhanced display devices. The library - S2PLOT - is written in C and can be used by C, C++ and FORTRAN programs on GNU/Linux and Apple/OSX ...
Beeson   +7 more
core   +3 more sources

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

open access: yesFEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

3D Display [PDF]

open access: yes, 2009
Tato bakalářská práce se zabývá návrhem a realizací systému, který umožní obraz scény zobrazovaný na ploše vnímat prostorově. Prostorové vnímání 2D obrazové informace je umožněno jednak stereopromítáním a jednak tím, že se obraz mění v závislosti na ...
Szkandera, Jan
core  

Spatial 3D imaging by synthetic and digitized holography [PDF]

open access: yes, 2011
A novel method named digitized holography is proposed for 3D display systems. This is the technique replacing the whole process of classical holography with digital processing of optical wave-fields.
Arima Yasuaki   +5 more
core   +2 more sources

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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