Group Activity Essay Example | Topics and Well Written Essays - 500 words

Group Activity - Essay Example The inferences and the observations that are arrived at are always in relation to the position of the head (Azevedo and Aleven, 114). There are some eye tracking systems that are attached directly to the eye and they consist of a special contact lens that has a mirror that is fixed on it or it may contain a sensor that is comprised of magnetic fields. When the attachment moves it is assumed that it moves with the eyes and the measurement are done from this. This kind of eye tracking software gives better results in terms of the accuracy of the data that is collected since it can measure horizontal, vertical and other movements simultaneously and in real time. This information is then used to judge the direction that the eye is looking and how it is moving. The number of times that the eye will be blinking and any change in the size of the pupil is also monitored. The data is then saved as a file that is well-suited with the software that is used to analyze the eye tracking. Tobii technology is the leader in the eye tracking technology and it makes hi-tech equipment that is preferred by many in the market. Tobii also develops and works with people that have one disability or another to provide for them equipment that will make their lives easier. SMI Eye Tracking also makes eye tracking systems that include portable eye trackers, hands on eye tracking, eye tracking glasses and even 6D eye tracking solutions that can be used for a variety of needs depending on what the customer will buy it for. LC Technologies uses the eyes to help develop human perception and then develops instruments that can tell how human beings are able to look at and interact with the outside world. It instruments can accurately tell what is going on with the eyes as the movement is going on meaning it does this simultaneously. The cost of a decent eye tracking software equipment ranges between ten thousand dollars and