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Publications associées (17)

A Differential Approach for Gaze Estimation

Most non-invasive gaze estimation methods regress gaze directions directly from a single face or eye image. However, due to important variabilities in eye shapes and inner eye structures amongst individuals, universal models obtain limited accuracies and t ...

2020

An Insect Eye Inspired Miniaturized Multi-Camera System for Endoscopic Imaging

Yusuf Leblebici, Ömer Cogal

In thiswork,we present aminiaturized high definition vision system inspired by insect eyes, with a distributed illumination method, which can work in dark environments for proximity imaging applications such as endoscopy. Our approach is based on modeling ...

Ieee-Inst Electrical Electronics Engineers Inc2017

An artificial elementary eye with optic flow detection and compositional properties

Dario Floreano, Ramon Pericet Camara, Michal Karol Dobrzynski

We describe a 2 mg artificial elementary eye whose structure and functionality is inspired by compound eye ommatidia. Its optical sensitivity and electronic architecture are sufficient to generate the required signals for the measurement of local optic flo ...

2015

A small-scale hyperacute compound eye featuring active eye tremor: application to visual stabilization, target tracking, and short-range odometry

Dario Floreano

In this study, a miniature artificial compound eye (15 mm in diameter) called the curved artificial compound eye (CurvACE) was endowed for the first time with hyperacuity, using similar micro-movements to those occurring in the fly's compound eye. A period ...

Iop Publishing Ltd2015

Probable nature of higher-dimensional symmetries underlying mammalian grid-cell activity patterns

Alexander Mathis

Lattices abound in nature—from the crystal structure of minerals to the honey-comb organization of ommatidia in the compound eye of insects. These arrangements provide solutions for optimal packings, efficient resource distribution, and cryptographic proto ...

2015

A Miniaturized Insect Eye Inspired Multi-camera Real-time Panoramic Imaging System

Ömer Cogal

During the last 50 years miniaturization became a key element in human history, since it opens doors for manufacturing new devices that enhances the quality of human life. Camera and imaging systems are following this miniaturization trend as well. Meanwhi ...

EPFL2015

Geometric Generative Gaze Estimation (G3E) for Remote RGB-D Cameras

Jean-Marc Odobez, Kenneth Alberto Funes Mora

We propose a head pose invariant gaze estimation model for distant RGB-D cameras. It relies on a geometric understanding of the 3D gaze action and generation of eye images. By introducing a semantic segmentation of the eye region within a generative proces ...

IEEE2014

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

Multiple-Field Approach for Aberration Correction in Miniature Imaging Systems Based on Wafer-Level Production

Hans Peter Herzig, Toralf Scharf, Nicolas Bongard

IIn mobile imaging systems, the most difficult element to integrate is the objective lens. Here we present an intermediate approach between the costly traditional objectives and the low-resolution objectives inspired by the compound eyes of insects. Our mu ...

SPIE Digital Library2013

Chiasmatic Infiltration Secondary to Late Malignant Transformation of Retinoma

Alessia Pica

Purpose: To report the lethal course of malignant transformation of retinoma in an adult. Methods: Case report. A 40-year-old patient presented with retinoma in his right eye and retinoblastoma in his left eye. Enucleation was recommended but refused and t ...

Informa Healthcare2012

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