1. INTRODUCTION
In recent years, there has been increasing public concern related to the topic of caring for old people. Falls are the leading cause of death due to injury among the unexpected events which happen in the elderly group. Such falls can also result in fractures. Traditional methods to detect falls use some wearable sensors. However, a problem arises with respect to such detectors because older people often forget to wear them and they are intrusive. In order to solve this problem, fall detection based on the use of digital video processing technology is developed.