Gaze Analysis in Spot the Difference

Mariko Sasakura, Syouta Toda, Akito Monden

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


The ability to see and find things is very important in our daily lives. For example, when looking for mistakes in debugging a program, or when looking for misspellings in documents, etc., the visual sense is mainly used. The search may or may not be successful. Is there any difference in the way of searching when the search is successful or unsuccessful? The aim of this study is to analyse the gaze while searching and to clarify the differences between successful and unsuccessful searches, using 'spot the difference' as a subject. We have developed an experimental application to measure people's gaze while they are looking 'spot the difference'. In the experiment conducted in this study, 29 subjects have asked to perform 'spot the difference' of multiple problems and their gaze have been measured. Analysis of the data obtained from this experiment shows that in many cases, subjects who could not find a difference were not looking at the location of the difference. On the other hand, the existence of 'cases of looking but not finding', in which the difference is not detected even though the difference is fully looked at, is also identified. In the present experiment, 'looking but not finding' cases account for 15% of all non-correct responses in all questions.

Original languageEnglish
Title of host publicationProceedings - 2022 26th International Conference Information Visualisation, IV 2022
PublisherInstitute of Electrical and Electronics Engineers Inc.
Number of pages6
ISBN (Electronic)9781665490078
Publication statusPublished - 2022
Event26th International Conference Information Visualisation, IV 2022 - Vienna, Austria
Duration: Jul 19 2022Jul 22 2022

Publication series

NameProceedings of the International Conference on Information Visualisation
ISSN (Print)1093-9547


Conference26th International Conference Information Visualisation, IV 2022


  • eye tracking
  • gaze analysis
  • spot the difference

ASJC Scopus subject areas

  • Software
  • Signal Processing
  • Computer Vision and Pattern Recognition


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