was used for three-dimensional measurements of user's body (kinematic data) (Fig. 4).
An AR system requires measurements of user and objects position and orientation, for this reason, several tracking systems and some calibration procedures are described.
Despite the popular use of the special analysis tool in Gruen zone measurements in orthopaedics, particularly in post-operative prosthetic hip studies [ 21], it has not yet been used to make linear measurements of user-defined ROIs.
Ms. Katz, like many in the Internet advertising and publishing world, says she still finds the ratings services to be lacking in many ways, especially their measurement of users in offices and at universities.
Traditionally, measurement of users' perception of voice quality has been performed by expensive and time-consuming subjective listening tests.
A more conservative measurement of users that removes duplicate credit card and email information shows 2 million users, up from 95,000 a year ago.
Another interesting upside of using ClickTale is that it provides a real measurement of user engagement.
"Eye tracking allows the implicit measurement of user behavior, and turns that measurement into quantitative objective data.
LinkedIn CEO Jeff Weiner just dropped some numbers on the LinkedIn social platform's measurement of user engagement, revealing that the social network now boasts 85 million members and is adding a member each second.
Until now, however, we have almost only seen proof-of-concepts where a single BCI paradigm is demonstrated to work as a simple control mechanism, as a measurement of user state, or for neurofeedback.
