Remote Quantification of Workout Energy Expenditure with a Cell Phone Camera

Yuting Yang, Chenbin Liu, Francis Tsow, Dangdang Shao, Hui Yu, Shunren Xia, Nongjian Tao

Research output: Contribution to journalArticlepeer-review

4 Scopus citations


A method based on intelligent video processing is introduced here to objectively assess the intensity and energy expenditure of popular indoor workouts, including sit up, push up, jumping jack, and squat. The method is based a smart phone camera, which can count the repetition, assess the intensity level, and quantify the energy expenditure of the workouts. It uses an algorithm that analyzes body movement and body's effort to overcome gravity in hierarchical layers, each with an increasing level of details. The energy expenditure values for different types of workouts at different intensities determined by the method are compared with a gold standard indirect calorimetry apparatus worn by the study subject.

Original languageEnglish (US)
Article number7387669
Pages (from-to)8263-8270
Number of pages8
JournalIEEE Sensors Journal
Issue number23
StatePublished - Dec 1 2016


  • Physical activity
  • cell phone camera
  • energy expenditure
  • workout

ASJC Scopus subject areas

  • Instrumentation
  • Electrical and Electronic Engineering


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