21 papers · ranked by Valyu relevance
Kaito Shoji, Yuto Osada, Atsutoshi Kurihara, Yue Bao + 1 more
'Alois Herkommer'] A micro-mirror array plate is a type of aerial image display that allows an observer to touch the aerial image directly. The problem with this optical element is that it produces stray light, called a ghost, which reduces the visibility of the aerial image. Conventional methods can suppress the…
Chenming He, Rui Xia, Chengzhen Meng, Xiaoran Fan + 4 more
Vehicle detection in tunnels is crucial for traffic monitoring and accident response, yet remains underexplored. In this paper, we develop mmTunnel, a millimeter-wave radar system that achieves far-range vehicle detection in tunnels. The main challenge here is coping with ghost points caused by multi-path reflections…
Florian Kraus, Nicolas Scheiner, Werner Ritter, Klaus Dietmayer
— Radar sensors have a long tradition in advanced driver assistance systems (ADAS) and also play a major role in current concepts for autonomous vehicles. Their importance is reasoned by their high robustness against meteorological effects, such as rain, snow, or fog, and the radar's ability to measure relative radial…
Ziyan Chen, Jing Cheng, Heng Wu, Qiangqiang Yuan
The conventional approach to phase reconstruction in Reflective Ghost Imaging (RGI) typically involves the introduction of three reference screens into the reference path, deeming the Fourier transform step indispensable. However, this method introduces complexity to the system and raises concerns regarding potential…
Nicholas D. Hardy, Jeffrey H. Shapiro
Ghost imaging has been receiving increasing interest for possible use as a remote-sensing system. There has been little comparison, however, between ghost imaging and the imaging laser radars with which it would be competing. Toward that end, this paper presents a performance comparison between a pulsed, computational…
Yizhou Tan, Han Chen
The array of micro-prisms was described by model of multi-period blazed gratings consisting of triangular apertures. The origins of hexagram-shaped diffraction patterns were interpreted based on multiple-beam interference and diffraction array theorem. The relation between zonal /line ghost fringes and imperfectly…
Weixiang Jiang, Cheng‐Wei Qiu, Tiancheng Han, Shuang Zhang + 1 more
'Tie Jun Cui'] Abstract: The creation of wave-dynamic illusion functionality is of great interests to various scientific communities, which can potentially transform an actual perception into the precontrolled perception, thus empowering unprecedented applications in the advanced-material science, camouflage, cloaking…
Edward Tananyan, Ohad Lib, Michal Zimmerman, Yaron Bromberg
Ghost imaging enables the imaging of an object using intensity correlations between a single-pixel detector placed behind the object and a camera that records light that did not interact with the object. The object and the camera are often placed at conjugate planes to ensure correlated illumination patterns. Here, we…
Yongtao Guan, Daniel Levy
We present a novel knockoff construction method, and demonstrate its superior performance in two applications: identifying proteomic signatures of age and genetic fine mapping. Both applications involve datasets of highly correlated features, but they differ in the abundance of driver associations. Our primary…
Pradeep Sen
—Classical ghost imaging has received considerable attention in recent years because of its remarkable ability to image a scene without direct observation by a light-detecting imaging device. In this article, we show that this imaging process is actually a realization of a paradigm known as dual photography, which has…
Sophie J. Nightingale, Kimberley A. Wade, Hany Farid, Derrick G. Watson
'Derrick G. Watson'] The increasing sophistication of photo-editing software means that even amateurs can create compelling doctored images. Yet recent research suggests that people’s ability to detect image manipulations is limited. Given the prevalence of manipulated images in the media, on social networking sites…
Yurui Zhu, Xueyang Fu, Peng-Tao Jiang, Hao Zhang + 4 more
'Jinwei Chen' 'Zheng-Jun Zha' 'Bo Li'] This research focuses on the issue of single-image reflection removal (SIRR) in real-world conditions, examining it from two angles: the collection pipeline of real reflection pairs and the perception of real reflection locations. We devise an advanced reflection collection…
Nazanin Donyapour, Nicole Roussey, Samik Bose, Alex Dickson
Ligand-induced conformational changes form the underpinnings of most essential biomolecular processes, however they are often neglected in screening and design applications, due to the high computational cost of simulating each candidate ligand individually. We propose a method called "Flexible Topology", where a…
Maciej Piejko, Benjamin Boglio, Bianca Patrahau, Kripa Joseph + 4 more
In a research article published last year we reported red shifting of the charge transfer band of Reichardt’s dye in the visible spectrum when the solvent was vibrationally coupled to an optical cavity, indicating a change in the polarity of the solvent. The magnitude of the observed shifts correlated with the alkyl…
Kang Wu, Xiao-Ming Fu, Renjie Chen, Ligang Liu
Visual arts refer to art experienced primarily through vision. 3D visual optical art is one of them. Artists use their rich imagination and experience to combine light and objects to give viewers an unforgettable visual experience. However, the design process involves much trial and error; therefore, it is often very…
Robert Ennis, Katja Doerschner
Studies on the perceived color of transparent objects have elucidated potential mechanisms but have mainly focused on flat filters that overlay a flat background. However, studies with flat filters have not captured all aspects of physical transparency, such as caustics, specular reflections/highlights, and shadows.…
Ned Buckley, Alexis D. J. Makin
EEG can be used to measure the brain response to visual regularity. Reflectional symmetry generates an event-related potential (ERP) named the sustained posterior negativity (SPN). The SPN for reflectional symmetry is generated automatically, whatever the participant's task. This may be because reflectional symmetry…
Takeaki Shimokawa, Akiko Nishio, Masa-aki Sato, Mitsuo Kawato + 1 more
In natural conditions the human visual system can estimate the 3D shape of specular objects even from a single image. Although previous studies suggested that the orientation field plays a key role for 3D shape perception from specular reflections, its computational plausibility and possible mechanisms have not been…
Álvaro De-La-Llana-Calvo, José Luis Lázaro-Galilea, Alfredo Gardel-Vicente, David Rodríguez-Navarro + 4 more
'Alfredo Gardel-Vicente' 'David Rodríguez-Navarro' 'Ignacio Bravo-Muñoz' 'Georgios Tsirigotis' 'Juan Iglesias-Miguel' 'Leonhard M. Reindl'] In this paper, we propose a model to characterize Infrared (IR) signal reflections on any kind of surface material, together with a simplified procedure to compute the model…
Masakazu Iwasaka
Dynamic light reflection can serve a similar purpose to tools such as digital line processing devices. It is interesting, therefore, that evidence of dynamic light reflection can also be found in the animal kingdom and that there may be alternative ways of actuating light control. This study discovered that several…
Emmanuel Wolde-Michael, Aled D Roberts, Derren J Heyes, Ahu G Dumanli + 3 more
The remarkable camouflage capabilities of cephalopods have inspired many to develop dynamic optical materials which exploit certain design principles and/or material properties from cephalopod dermal cells. Here, the angle-dependent optical properties of various single-layer reflectin thin-films are characterized…