Non-intrusive and calibration free visual exploration analysis in children with autism spectrum disorder

Dario Cazzato, Francesco Adamo, Giuseppe Palestra, Giulia Crifaci, Paola Pennisi, Giovanni Pioggia, Liliana Ruta, Marco Leo, Cosimo Distante

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Assistive technology is a generic system that is used to increase, help or improve the functional capabilities of people with disability. Recently, its employment has generated innovative solutions also in the field of Autism Spectrum Disorder (ASD), where it is extremely challenging to obtain feedback or to extract meaningful data. In this work, a study about the possibility to understand the visual exploration in children with ASD is presented. In order to obtain an automatic evaluation, an algorithm for free gaze estimation is employed. The proposed gaze estimation method can work without constrains nor using additional hardware, IR light sources or other intrusive methods. Furthermore, no initial calibration is required. These relaxations of the constraints makes the technique particularly suitable to be used in the critical context of autism, where the child is certainly not inclined to employ invasive devices. In particular, the technique is used in a scenario where a closet containing specific toys, that are neatly disposed from the therapist, is opened to the child. After a brief environment exploration, the child will freely choose the desired toy that will be subsequently used during therapy. The video acquisition have been accomplished by a Microsoft Kinect sensor hidden into the closet in order to obtain both RGB and depth images, that can be processed by the estimation algorithm, therefore computing gaze tracking by intersection with data coming from the well-known initial disposition of toys. The system has been tested with children with ASD, allowing to understand their choices and preferences, letting to optimize the toy disposition for cognitive-behavioural therapy.

Original languageEnglish
Title of host publicationComputational Vision and Medical Image Processing V - Proceedings of 5th Eccomas Thematic Conference on Computational Vision and Medical Image Processing, VipIMAGE 2015
PublisherCRC Press/Balkema
Pages201-208
Number of pages8
ISBN (Print)9781138029262
Publication statusPublished - 2016
Event5th Eccomas Thematic Conference on Computational Vision and Medical Image Processing, VipIMAGE 2015 - Tenerife, Spain
Duration: Oct 19 2015Oct 21 2015

Other

Other5th Eccomas Thematic Conference on Computational Vision and Medical Image Processing, VipIMAGE 2015
CountrySpain
CityTenerife
Period10/19/1510/21/15

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Biomedical Engineering
  • Electrical and Electronic Engineering

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