Results 21 to 30 of about 11,587,356 (306)
Applied Sciences, 2017 In this paper, we used a freeform lens in a long-wave, un-cooled, refractive infrared (IR) thermal imager and present the design strategy and test results. This optical system is composed of only one freeform lens and several spheres.
Jinjin Chen +6 more
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Depth perception on fundus images using a single-channel stereomicroscopy
Journal of Innovative Optical Health Sciences, 2021 Typical fundus photography produces a two-dimensional image. This makes it difficult to observe the microvascular and neural abnormalities, because the depth of the image is missing. To provide depth appreciation, we develop a single-channel stereoscopic
Edalat Radfar +4 more
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Laboratory implementation of edge illumination X-ray phase-contrast imaging with energy-resolved detectors [PDF]
, 2015 Edge illumination (EI) X-ray phase-contrast imaging (XPCI) has potential for applications in different fields of research, including materials science, non-destructive industrial testing, small-animal imaging, and medical imaging.
A. Olivo +41 more
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Video-rate or high-precision: A flexible range imaging camera [PDF]
, 2008 A range imaging camera produces an output similar to a digital photograph, but every pixel in the image contains distance information as well as intensity.
Dorrington, Adrian A. +13 more
core +1 more source
Micromachines, 2020 Lens-based optical microscopes cannot resolve the sub-wavelength objects overpass diffraction limit. Recently, research on super-resolution imaging has been conducted to overcome this limitation in visible wavelength using solid immersion lenses. However,
Gil Ju Lee +2 more
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Influence of Image Processing Method on Wavefront Reconstruction Accuracy of Large-Aperture Laser
Photonics, 2023 In order to improve the wavefront reconstruction accuracy of a large-aperture laser, this paper proposed an adaptive window preprocessing algorithm based on the threshold center of gravity method (AW-TCoG).
Gangyu Wang +5 more
doaj +1 more source
IEEE Photonics Journal, 2022 Considering that the driver and passengers need different display content in the vehicle display, we propose a dual-view and multi-content head-up display (HUD).
Zhenlv Lv, Juan Liu, Yan Yang
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IEEE Photonics Journal, 2022 Inthis paper, we report a ghost imaging (GI) method using a periodic pseudo-thermal optical field generated by a 4 × 4 silicon optical phased array (OPA) with an independently tuned grating coupler antenna.
Zihao Wang +7 more
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Breakthroughs in Photonics 2013: Fourier Ptychographic Imaging
IEEE Photonics Journal, 2014 Fourier ptychography (FP) is a recently developed computational framework for high-resolution high-throughput imaging. In this paper, we will review the latest development of the Fourier ptychographic imaging scheme.
Guoan Zheng
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UAV-Based Hyperspectral Imaging for River Algae Pigment Estimation
Remote Sensing, 2023 Harmful and nuisance algal blooms are becoming a greater concern to public health, riverine ecosystems, and recreational uses of inland waterways. Algal bloom proliferation has increased in the Upper Clark Fork River due to a combination of warming water
Riley D. Logan +5 more
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