Concept

Trichromatisme

Publications associées (17)

Homogeneous light stimulation of melanopsin and cones with a Maxwellian view device for the human eye

We designed and tested a device to stimulate specifically one photoreceptor type, or a combination of some of them, of the human eye by using up to six primaries. The device produces a homogeneous light field over 40 degrees which is projected onto the ret ...

IEEE2021

Beyond silence : a functional and evolutionary study of KRAB zinc finger proteins

Pierre-Yves Joseph Laurent Helleboid

Transposable elements (TEs) are genetic units capable of spreading within the genomes of their host. TEs contribute a readily recognizable 45% of the human DNA, reflecting in part their co-option for some as source of protein-coding sequences, for others a ...

EPFL2019

Photovoltaic stimulation of retinal ganglion cells with wide-field epiretinal prosthesis

Diego Ghezzi, Kevin Sivula, Marta Jole Ildelfonsa Airaghi Leccardi, Laura Ferlauto, Naïg Aurelia Ludmilla Chenais

Retinal prostheses have become in the past decade a promising and realistic technology to restore vision. Nonetheless, sight restoration with retinal prostheses in a clinically relevant perspective requires resolution and implantation challenges not yet ac ...

2017

An Interactive App for Color Deficient Viewers

Sabine Süsstrunk, Cheryl Shaulya Lau, Nicolas Perdu, Gaurav Sharma

Color deficient individuals have trouble seeing color contrasts that could be very apparent to individuals with normal color vision. For example, for some color deficient individuals, red and green apples do not have the striking contrast they have for tho ...

2015

Pupil responses derived from outer and inner retinal photo reception are normal in patients with hereditary optic neuropathy

Mirjam Münch, Lorette Leon

We compared the pupil responses originating from outer versus inner retinal photoreception between patients with isolated hereditary optic neuropathy (HON, n = 8) and healthy controls (n = 8). Three different testing protocols were used. For the first two ...

Academic Press Ltd- Elsevier Science Ltd2014

Organic semiconductors for artificial vision

Diego Ghezzi

Organic semiconductors have emerged in the past two decades as promising materials for many technological applications. Thanks to their unique optoelectronic properties, they represent an ideal system to mimic natural photoreceptor functioning. This simila ...

2013

Miniature curved artificial compound eyes

Dario Floreano, Ramon Pericet Camara, Michal Karol Dobrzynski, Géraud L'Eplattenier

In most animal species, vision is mediated by compound eyes, which offer lower resolution than vertebrate single-lens eyes, but significantly larger fields of view with negligible distortion and spherical aberration, and high temporal resolution in a tiny ...

National Academy of Sciences2013

Spectral Sharpening by Spherical Sampling

Sabine Süsstrunk

There are many works in colour that assume illumination change can be modelled by multiplying sensor responses by individual scaling factors. The early research in this area are sometimes grouped under the heading von Kries adaptation: the scaling factors ...

2012

Event-based pixel sensitive to changes of color and brightness

Vision sensors whose pixels asynchronously generate informative output events are gathering increasing interest because they can reduce the data latency, rate, and redundancy, while also increasing dynamic range. This paper proposes such a dynamic vision s ...

2011

Clinical and genetic investigation of a large Tunisian family with complete achromatopsia: identification of a new nonsense mutation in GNAT2 gene

Farah Ouechtati

Complete achromatopsia is a rare autosomal recessive disease associated with CNGA3, CNGB3, GNAT2 and PDE6C mutations. This retinal disorder is characterized by complete loss of color discrimination due to the absence or alteration of the cones function. Th ...

2011

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