Sledenje očem z uporabo spletne kamere

Vranješ, Luka (author), Žabkar, Jure (mentor)

V diplomski nalogi se soočimo s problemom napovedovanja točke pogleda z uporabo spletne kamere za potrebe aplikacije za zaznavo disleksije. Specifični primer uporabe nam omogoča dodatne omejitve problema. V osnovi je problem razdeljen na dva dela. Prvi del rešimo z metodami računalniškega vida in vključuje zaznavo obraza, interesnih točk in središča zenice. V drugem delu z uporabo globoke nevronske mreže napovemo točko pogleda. Z opravljenimi eksperimenti definiramo parametre kalibracije. V najboljšem primeru smo dobili povprečno napako napovedi v radiju 3,37 cm. To nam pogojno omogoča uporabo predstavljenega pristopa za potrebe aplikacije.

• Language: Slovenian
• Keywords: računalnik, oči, sledenje, kamera
• Work type: Bachelor thesis/paper
• Organization: FRI - Faculty of Computer and Information Science
• Year: 2019
• PID: 20.500.12556/RUL-110529
• COBISS.SI-ID: 1538347459
• Publication date in RUL: 16.09.2019

VRANJEŠ, Luka, 2019, Sledenje očem z uporabo spletne kamere [online]. Bachelor’s thesis. [Accessed 19 May 2025]. Retrieved from: https://repozitorij.uni-lj.si/IzpisGradiva.php?lang=eng&id=110529

Secondary language

• Language: English
• Title: Eye-tracking with a web camera

Abstract

We consider a problem of gaze prediction using a simple webcam for use with an application that screens for dyslexia. The specific use case enables us to define additional boundaries that simplify our problem. On a higher level the problem is composed of two sub problems. The first one requires us to detect the users face, find its landmarks and in the end locate the eye center. We solve this as a computer vision problem. The second sub problem is mapping the features to a point on the screen. For this we used a deep neural network. For optimal results we preform experiments on how to most efficiently calibrate. In the best test case we were able to achieve an average of 3,37 cm prediction error. This puts our approach at most conditionally suitable for use with the target application.

• Keywords: computer, eyes, tracking, webcam