Comparison of Activity Recognition using 2D and 3D Skeletal Joint Data

Fiona Marshall, Shuai Zhang, Bryan Scotney

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


With the recent development of cheap and accurate depth sensors, activity recognition research has largely focused on the use of features created from 3D, rather than 2D, skeletal joint location. Nevertheless, conventional 2D RGB cameras remain an attractive data collection tool due to their low cost and ease of use. This study investigates the benefits of using 2D skeletal joints for activity recognition using visualisation and an exemplar classifier. Results show that 2D models can be as informative as 3D models, demonstrating the informativeness of joints extracted from RGB video.
Original languageEnglish
Title of host publicationIrish Machine Vision & Image Processing Conference proceedings
Subtitle of host publicationIMVIP 2019
PublisherIrish Pattern Recognition and Classification Society
Number of pages20
ISBN (Electronic) ISBN 978-0-9934207-4-0
Publication statusPublished (in print/issue) - Aug 2019
EventIrish Machine Vision & Image Processing IMVIP 2019 - Grangegorman Campus, Technological University, Dublin, Ireland
Duration: 28 Aug 201930 Aug 2019


ConferenceIrish Machine Vision & Image Processing IMVIP 2019
Abbreviated titleIMVIP
Internet address


  • Activity Recognition
  • 3D Skeletal Joints
  • 2D Skeletal Joints
  • RGB


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