Challenges in using wearable cameras and phone logs to generate ground truth of transportation activities

Yung-Ju Chang, Gaurav Paruthi, Mark W. Newman

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Researchers have started recruiting users to record activity data with ground truth annotations in real-word settings. These annotations are considered "ground truth" because users who collected activity data probably know what happened during the activity. However, while ground truth annotations are generally believed to be truthful representations of recorded activities, other qualities of activity recordings such as temporal precision are also of researchers' interest. To assess and compare the qualities of annotated recordings collected among different approaches, it is necessary to have another way to capture a ground truth of users' activities. In this paper, we demonstrate how we used wearable cameras and phone logs to assess the quality of users' recorded transportation activity data. We focus on how we collected photos and logs and generated a ground truth of transportation activity data, and we present challenges we encountered in the generation process.

Original languageEnglish
Title of host publicationUbiComp and ISWC 2015 - Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing and the Proceedings of the 2015 ACM International Symposium on Wearable Computers
PublisherAssociation for Computing Machinery, Inc
Pages1361-1366
Number of pages6
ISBN (Electronic)9781450335751
DOIs
StatePublished - 7 Sep 2015
EventACM International Joint Conference on Pervasive and Ubiquitous Computing and the 2015 ACM International Symposium on Wearable Computers, UbiComp and ISWC 2015 - Osaka, Japan
Duration: 7 Sep 201511 Sep 2015

Publication series

NameUbiComp and ISWC 2015 - Proceedings of the 2015 ACM International Joint Conference on Pervasive and Ubiquitous Computing and the Proceedings of the 2015 ACM International Symposium on Wearable Computers

Conference

ConferenceACM International Joint Conference on Pervasive and Ubiquitous Computing and the 2015 ACM International Symposium on Wearable Computers, UbiComp and ISWC 2015
CountryJapan
CityOsaka
Period7/09/1511/09/15

Keywords

  • Activity data collection
  • Annotation
  • Ground truth
  • Transportation
  • Wearable cameras

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