23 papers · ranked by Valyu relevance
Olivier A. Coubard, Marika Urbanski, Clémence Bourlon, Marie Gaumet
Vision is a complex function, which is achieved by movements of the eyes to properly foveate targets at any location in 3D space and to continuously refresh neural information in the different visual pathways. The visual system involves five main routes originating in the retinas but varying in their destination within…
George Ayoub, Uwe Ilg, Jinming Han
The visual system has served as an expeditious entry point for discerning the mechanism of action of many brain systems, spearheading multiple fields of neuroscience in the process. It has additionally launched the careers of countless scientists, as we have crafted new means to understand neuronal structures and their…
Robert Pepperell
It is frequently assumed that the fundamental purpose of vision is to extract information from light and process it in the brain in order to gain knowledge about environmental objects. Treating vision as an information-driven process has been fruitful for many areas of vision science. But this approach has inherent…
August Colenbrander
Vision is the most powerful sense guiding our interaction with the environment. Its process starts with the retinal image as input and results in visually guided behaviors as output. This paper summarizes insights I gained over >40 years dealing with clinical ophthalmology, visual science, and vision rehabilitation…
Shikha Chaudhary, Nicola Saywell, Denise Taylor
The visual system is a source of sensory information that perceives environmental stimuli and interacts with other sensory systems to generate visual and postural responses to maintain postural stability. Although the three sensory systems; the visual, vestibular, and somatosensory systems work concurrently to maintain…
Li Zhaoping
Our brain recognizes only a tiny fraction of sensory input, due to an information processing bottleneck. This blinds us to most visual inputs. Since we are blind to this blindness, only a recent framework highlights this bottleneck by formulating vision as mainly looking and seeing. Looking selects a tiny fraction of…
Sylvie Chokron, Klara Kovarski, Gordon N. Dutton
Medical advances in neonatology have improved the survival rate of premature infants, as well as children who are born under difficult neurological conditions. As a result, the prevalence of cerebral dysfunctions, whether minimal or more severe, is increasing in all industrialized countries and in some developing…
Kushagra Tiwary, Aaron J. Young, Zaid Tasneem, Tzofi Klinghoffer + 5 more
'Akshat Dave' 'Tomaso Poggio' 'Dan‐Eric Nilsson' 'Brian Cheung' 'Ramesh Raskar'] Vision systems in nature show remarkable diversity, from simple light-sensitive patches to complex camera eyes with lenses. [1, 2] While natural selection has produced these eyes through countless mutations over millions of years, they…
Jing Wang, Hamid Azimi, Yilei Zhao, Melanie Kaeser + 3 more
The lateral geniculate nucleus (LGN), a retinotopic relay center where visual inputs from the retina are processed and relayed to the visual cortex, has been proposed as a potential target for artificial vision. At present, it is unknown whether optogenetic LGN stimulation is sufficient to elicit behaviorally relevant…
Amir-Vala Tavakoli, Takanobu Omata, Teppei Imamura, Ryo Ogawa + 6 more
Conventional displays, such as CRTs and LCDs, are commonly used to present and manipulate visual stimuli in many vision science studies. However, such displays pose difficulties when the goal is to constrain stimulation to specific retinal locations, so as to isolate their contribution to downstream effects. Scattered…
Jacek Turski
A theory of the binocular system with asymmetric eyes (AEs) is developed in the framework of bicentric perspective projections. The AE accounts for the eyeball’s global asymmetry produced by the foveal displacement from the posterior pole, the main source of the eye’s optical aberrations, and the crystalline lens’ tilt…
Authors not listed
In experimental chemistry, actions are adjusted based on what we see—such as dosing until dissolution, heating until melting, or stirring until mixing is complete. However, current self-driving labs (SDLs) do not monitor these visual cues. HeinSight 4.0 fills this gap by integrating computer vision into SDLs to enable…
Michael Beyeler, Ariel Rokem, Geoffrey M. Boynton, Ione Fine
The “bionic eye” – so long a dream of the future – is finally becoming a reality with retinal prostheses available to patients in both the US and Europe. However, clinical experience with these implants has made it apparent that the vision provided by these devices differs substantially from normal sight. Consequently…
Justin Kasowski, Apurv Varshney, Michael Beyeler
Visual neuroprostheses, or bionic vision systems, aim to restore rudimentary visual function to people with profound blindness by bypassing damaged visual pathways and directly stimulating surviving neurons [13, [63]]. Depending on the site of implantation, these devices target the retina, optic nerve, or visual…
Melani Sanchez-Garcia, Roberto Morollon-Ruiz, Rubén Martínez-Cantín, J.J. Guerrero + 1 more
'J.J. Guerrero' 'Eduardo Fernández'] Abstract. Objective. Current visual implants still provide very low resolution and limited field of view, thus limiting visual acuity in implanted patients. Developments of new strategies of artificial vision simulation systems by harnessing new advancements in technologies are of…
Michael Beyeler, Devyani Nanduri, James D. Weiland, Ariel Rokem + 2 more
Retinal prostheses, now implanted in over 250 patients worldwide, electrically stimulate surviving cells in order to evoke neuronal responses that are interpreted by the brain as visual percepts (‘phosphenes’). However, instead of seeing focal spots of light, current implant users perceive highly distorted phosphenes…
Vivien Gaillet, Elodie Geneviève Zollinger, Diego Ghezzi
Optic nerve’s intraneural stimulation is an emerging neuroprosthetic approach to provide artificial vision to totally blind patients. An open question is the possibility to evoke individual non-overlapping phosphenes via selective intraneural optic nerve stimulation. To begin answering this question, first, we aim at…
Melani Sanchez-Garcia, Rubén Martínez-Cantín, Jesús Bermúdez-Cameo, J.J. Guerrero
VR system Authors: ['Melani Sanchez-Garcia' 'Rubén Martínez-Cantín' 'Jesús Bermúdez-Cameo' 'J.J. Guerrero'] Visual prostheses are designed to restore partial functional vision in patients with total vision loss. Retinal visual prostheses provide limited capabilities as a result of low resolution, limited field of view…
Tharan Suresh, Anupama Roy, Atif Shaikh, Joanne Lydia Rajkumar + 2 more
Visual mental imagery or “seeing with the mind’s eye” is an everyday phenomenon. Visual mental imagery and visual perception share common neural-networks. Hence deficits that affect the visual perception may also affect visual mental imagery. We aimed to study the effect of refractive blur on the vividness of mental…
Rama El-khawaldeh, Mason Guy, Finn Bork, Nina Taherimakhsousi + 6 more
This work presents a generalizable computer vision (CV) and machine learning model that is used for automated real-time monitoring and control of a diverse array of workup processes. Our system simultaneously monitors multiple physical parameters (e.g., liquid level, homogeneity, turbidity, solid, residue, and color)…
Heeseung Lee, Daeho Kim, Heyin Lee, Namyoung Gwak + 6 more
- 1. Computational Science Research Center, Korea Institute of Science and Technology, Seoul 02792, Republic of Korea - 2. Department of Materials Science and Engineering, Korea University, 145 Anam-ro, Seoul 02841, Republic of Korea - 3. Department of Chemical and Biological Engineering, Korea University, Seoul 02841…
María D. Pinazo-Durán, Vicente Zanón-Moreno, José J. García-Medina, J. Fernando Arévalo + 2 more
'J. Fernando Arévalo' 'Roberto Gallego-Pinazo' 'Carlo Nucci'] Coexistence of several ocular diseases is more frequent than suspected. In spite of the refractive errors, one or more of the following can be detected simultaneously: glaucoma, cataracts, uveitis, age-related macular degeneration, and dry eyes. In addition…
Dal‐Young Kim
The accommodation-vergence mismatch has been considered as a cause of the visual fatigue induced in watching 3D display. We would propose the mismatch can be compensated by refractive power of adjustable-focus 3D glasses. From lens optics and geometrical considerations, we also developed equations that calculate…