Sonar-Based Measurement of User Attention
نویسندگان
چکیده
We describe a technique to determine presence and attention levels of computer users. This technique relies on sonar using hardware that already exists on commodity laptop computers and other electronic devices. It leverages the fact that human bodies have a different effect on sound waves than air and other objects. We conducted a user study in which 20 volunteers used a computer equipped with our ultrasonic sonar software. Our results show that it is possible to detect users with near perfect accuracy after only ten seconds of measurement. Our experiment is the first to demonstrate that user attention states can be differentiated using sonar.
منابع مشابه
Prospects for Sonar-based Measurement of User Attentiveness
We describe a technique to determine presence and attention of computer users. This technique relies on sonar, the hardware for which already exists on commodity laptop computers. Determining user presence and attention enables a number of system-level optimizations, e.g., the screen may be dimmed when the user is not paying attention in order to reduce power consumption. The proposed technique...
متن کاملDesign of a multi-sensor sonar system for indoor range measurement as a navigational aid for the blind.
This paper reports the methodology for the design of a sonar-based ranging and guidance system. The intended application of the system is to help a blind person avoid obstacles as he/she navigates his/her environment. Six sonar transceivers are arranged radially on a headgear worn by the user. The transceivers detect discrete range data at discrete-time sampling instances. A panoramic map of th...
متن کاملA New Similarity Measure Based on Item Proximity and Closeness for Collaborative Filtering Recommendation
Recommender systems utilize information retrieval and machine learning techniques for filtering information and can predict whether a user would like an unseen item. User similarity measurement plays an important role in collaborative filtering based recommender systems. In order to improve accuracy of traditional user based collaborative filtering techniques under new user cold-start problem a...
متن کاملSimilarity measurement for describe user images in social media
Online social networks like Instagram are places for communication. Also, these media produce rich metadata which are useful for further analysis in many fields including health and cognitive science. Many researchers are using these metadata like hashtags, images, etc. to detect patterns of user activities. However, there are several serious ambiguities like how much reliable are these informa...
متن کاملSimulation of Passive and Multistatic Active Sonar Contacts
Fields of distributed passive and multistatic active sonar sensors provide a surveillance capability against quiet submarine threats in ASW scenarios. A significant challenge of heterogeneous, multi-sensor systems is the successful fusion of information from the various sensors to enable robust target detection, classification, localization, and tracking. Sensor fusion and tracking algorithms m...
متن کامل