Questionnaires and diaries, the current methods of human activity data collection, do not
accurately capture the detail necessary to quantify exposure incurred through the dermal
and non-dietary ingestion routes. Stanford University's Environmental Engineering and
Science Program has developed methodologies and software (VideoTraq) for training video
translators, determining inter-observer reliability, and translating videotaped micro-activity
patterns into computer text files. VideoTraq output files contain duration, in seconds, for each …

Quantifying videotaped activity patterns: Video translation software and training
methodologies (Reprinted from the Journal of Exposure Analysis and Environmental
Epidemiology, vol 7, pg 535-542, 1997) | Health & Environmental Research Online (HERO)
| US EPA … Quantifying videotaped activity patterns: Video translation software and training
methodologies (Reprinted from the Journal of Exposure Analysis and Environmental
Epidemiology, vol 7, pg 535-542, 1997) … activity patterns; dermal exposure; non-dietary …