Search · four archives
Search · four archives
20 papers · ranked by Valyu relevance
Daehyeok Kim, Minkyu Song, Byeongseong Choe, Soo Youn Kim
In this paper, we present a multi-resolution mode CMOS image sensor (CIS) for intelligent surveillance system (ISS) applications. A low column fixed-pattern noise (CFPN) comparator is proposed in 8-bit two-step single-slope analog-to-digital converter (TSSS ADC) for the CIS that supports normal, 1/2, 1/4, 1/8, 1/16…
Daixuan Wu, Jiawei Luo, Guoqiang Huang, Yuanhua Feng + 4 more
'Runsen Zhang' 'Yuecheng Shen' 'Zhaohui Li'] Single-pixel holography (SPH) is capable of generating holographic images with rich spatial information by employing only a single-pixel detector. Thanks to the relatively low dark-noise production, high sensitivity, large bandwidth, and cheap price of single-pixel detectors…
Felix Heide, James Gregson, Gordon Wetzstein, Ramesh Raskar + 1 more
'Wolfgang Heidrich'] Abstract: Compressive displays are an emerging technology exploring the co-design of new optical device configurations and compressive computation. Previously, research has shown how to improve the dynamic range of displays and facilitate high-quality light field or glasses-free 3D image synthesis.…
Sanam Mozaffari, Volker Jaedicke, Francesco Larocca, Pavan Tiruveedhula + 1 more
Adaptive Optics Scanning Laser Ophthalmoscopy (AOSLO) is a powerful tool for imaging the retina at high spatial and temporal resolution. In this paper, we present a multi-detector scheme for AOSLO which has two main configurations: pixel reassignment and offset aperture imaging. In this detection scheme, the single…
Ming Sun, Caleigh Azumaya, Eric Tse, Adam Frost + 4 more
Detector technology plays a pivotal role in high-resolution and high-throughput cryo-EM structure determination. Compared with the first-generation, single-electron counting direct detection camera (Gatan K2), the latest K3 camera is faster, larger, and now offers a correlated-double sampling mode (CDS). Importantly…
István Gyöngy, Ahmet T. Erdogan, Neale A. W. Dutton, Germán Mora Martín + 4 more
'Germán Mora Martín' 'Alistair Gorman' 'Hanning Mai' 'F. Rocca' 'Robert Henderson'] 3D flash LIDAR is an alternative to the traditional scanning LIDAR systems, promising precise depth imaging in a compact form factor, and free of moving parts, for applications such as self-driving cars, robotics and augmented reality…
Mritunjay Kumar Singh, Tripurari Singh
New, high-resolution CMOS image sensors for mobile phones have moved beyond the single-binnable Quad Bayer and RGBW-Kodak patterns to the double binnable Hexadeca Bayer pattern featuring 4x4 tiles of like-colored pixels. Pixel binning enables high-speed, low-power readout in lowresolution modes and, more importantly, a…
Keiichiro Kagawa, Masaya Horio, Anh Ngoc Pham, Thoriq Ibrahim + 7 more
'Shin-ichiro Okihara' 'Tatsuki Furuhashi' 'Taishi Takasawa' 'Keita Yasutomi' 'Shoji Kawahito' 'Hajime Nagahara' 'Lucio Pancheri'] An ultra-high-speed computational CMOS image sensor with a burst frame rate of 303 megaframes per second, which is the fastest among the solid-state image sensors, to our knowledge, is…
Qi Zhang, Xin Xu, Yinghui Guo, Yuran Lu + 6 more
'Xiaoyin Li' 'Mingfeng Xu' 'Fei Zhang' 'Xiangang Luo'] Title: Abstract High resolution imaging represents a relentless pursuit within the field of optical system. Multi-frame super-resolution (SR) is an effective method for enhancing sampling density, while it heavily relies on sub-pixel scale displacement of a bulky…
Ming-Jie Sun, M. Edgar, David B. Phillips, Graham M. Gibson + 1 more
'Miles J. Padgett'] Since the invention of digital cameras there has been a concerted drive towards detector arrays with higher spatial resolution. Microscanning is a technique that provides a final higher resolution image by combining multiple images of a lower resolution. Each of these low resolution images is…
Hong Cao, Abhishek Saha, Lisa V. Poulikakos
In fluid flow imaging, intensity gradients are a good measure of spatial variations in scalar properties, which play an important role in controlling transport processes. However, current flow imaging techniques exhibit system-limited spatial resolutions, thus inhibiting the ability to accurately detect intensity…
Krzysztof Blachut, Tomasz Kryjak, Radu Danescu
The information about optical flow, i.e., the movement of pixels between two consecutive images from a video sequence, is used in many vision systems, both classical and those based on deep neural networks. In some robotic applications, e.g., in autonomous vehicles, it is necessary to calculate the flow in real time.…
Sami Koho, Giorgio Tortarolo, Marco Castello, Takahiro Deguchi + 2 more
Fourier ring correlation (FRC) has recently gained some popularity among (super-resolution) fluorescence microscopists as a straightforward and objective method to measure the effective resolution of a microscopy image. While the knowledge of the numeric resolution value is helpful in e.g. interpreting imaging results…
Huanzhi Chang, Shuang Fu, Yiming Li
Resolution of single molecule localization microscopy (SMLM) depends on the localization accuracy, which can be improved by utilizing engineered point spread functions (PSF) with delicate shapes. However, the intrinsic pixelation effect of the detector sensor will deteriorate PSFs under different sampling rates. The…
Jiao Sun, Yue Pan, Tong Lin, Kyle Smith + 5 more
Single-cell technologies enable high-resolution, multi-dimensional analysis of molecular profiles in cancer biology but face challenges related to low coverage and cell annotation. The inherent hetero-geneity and complexity of brain tumors may hinder large-scale single cell multi-omic profiling. An efficient…
Jianwei Chen, Benxi Yao, Zhichao Yang, Wei Shi + 4 more
4Pi single molecule localization microscopy (4Pi-SMLM) with two opposing objectives achieves sub-10 nm isotropic 3D resolution with as few as 250 photons collected by each objective. Here, we developed a new ratiometric multi-color imaging strategy for 4Pi-SMLM which employed the intrinsic multi-phase interference…
Authors not listed
Scanning emission-based microscopies, such as X-ray fluorescence (XRF) and energy-dispersive X-ray spectroscopy, offer nanometer-scale chemical maps, but suffer from long acquisition times and radiation damage. Lower-flux and shorter dwell time scans mitigate this problem, but the resulting signal loss can only…
Authors not listed
Scanning ion conductance microscopy (SICM) offers non-contact, label-free imaging of live cells with nanometer-scale resolution. However, its conventional imaging mode is inherently slow due to repeated vertical scanning, limiting temporal resolution and causing inertial issues. Here, we present Scanning Counter Ion…
Yiming Li, Elena Buglakova, Yongdeng Zhang, Jervis Vermal Thevathasan + 2 more
Interferometric single-molecule localization microscopy (iPALM, 4Pi-SMS) uses multiphase interferometry to localize single fluorophores and achieves nanometer isotropic resolution in 3D. The current data analysis workflow, however, fails to reach the theoretical resolution limit due to the suboptimal localization…
Niko Vlahakis, Songrong Qu, Logan Richards, Lygia Silva deMoraes + 3 more
Electron counting helped realize the resolution revolution in single particle cryoEM and is now accelerating the determination of MicroED/3DED structures. Its advantages are best demonstrated by new direct electron detectors capable of fast (kilohertz) event-based electron counting (EBEC). This strategy minimizes the…