Poor balance, mobility restrictions, fear of falling and fall injuries are serious problems in the elderly and in individuals with various disorders and diseases, including stroke, vestibular pathology, neurological diseases, and musculoskeletal disorders. To prevent falls and evaluate associated outcomes, effective methods are required to appropriately assess balance impairments and optimize therapy. We aim to develop a novel system using fast and accurate depth cameras which can assess standing balance and provide feedback to an interactive visual feedback therapy system for training balance in individuals who are at a high risk of falls. Non-contact assessment and monitoring of subject vital signs (e.g. heart rate, respiration rate) is achieved through the continuous analysis of intensity and depth map information provided from multiple stereo depth cameras.