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[[File:Vive and Lenovo headsets.png|thumb|Figure 2. The Vive and Lenovo headsets with Daydream. (Image: Google)]]

[[File:Vive and Lenovo headsets.png|thumb|Figure 2. The Vive and Lenovo headsets with Daydream. (Image: Google)]]

'''WorldSense''' is a [[positional tracking]] system developed by [[Google]] that uses [[inside-out]] technology, meaning that there is no need for external sensors to track the user’s movement. WorldSense aims to provide six [[degrees of freedom]] (6DOF) tracking for [[virtual reality]] (VR) [[head-mounted display|head-mounted displays]] (HMDs) (Figure 1). This means that the user can go forward, backward, left, right, lean, dodge and duck, for example, and the device will identify those movements and translate them into the virtual environment.<ref name=”1”> Lang, B. (2017). Google announces ‘WorldSense’ inside-out tracking for standalone daydream VR headsets. Retrieved from https://www.roadtovr.com/google-announces-worldsense-inside-tracking-standalone-daydream-vr-headsets/</ref><ref name=”2”> Lenovo. Lenovo + Daydream by Google. Retrieved from http://www3.lenovo.com/us/en/google-io/</ref><ref name=”3”> Daydream. Introducing Daydream standalone VR headsets. Retrieved from https://vr.google.com/daydream/standalonevr/</ref>

'''WorldSense''' is a [[positional tracking]] system made by [[Google]].

 

It uses SLAM/VIO technology, meaning that there is no need for external sensors to track the user’s movement. WorldSense aims to provide six [[degrees of freedom]] (6DOF) tracking for [[virtual reality]] (VR) [[head-mounted display|head-mounted displays]] (HMDs) (Figure 1). This means that the user can go forward, backward, left, right, lean, dodge and duck, for example, and the device will identify those movements and translate them into the virtual environment.<ref name=”1”> Lang, B. (2017). Google announces ‘WorldSense’ inside-out tracking for standalone daydream VR headsets. Retrieved from https://www.roadtovr.com/google-announces-worldsense-inside-tracking-standalone-daydream-vr-headsets/</ref><ref name=”2”> Lenovo. Lenovo + Daydream by Google. Retrieved from http://www3.lenovo.com/us/en/google-io/</ref><ref name=”3”> Daydream. Introducing Daydream standalone VR headsets. Retrieved from https://vr.google.com/daydream/standalonevr/</ref>

According to Robertson (2017), the technology “relies primarily on front-facing cameras to detect edges in the environment and use them as reference points, so the headset can tell how far you’ve walked in real space and translate that into virtual motion as well.” Therefore, it is also a [[markerless tracking]] device, not needing any [[fiducial markers]] for positional tracking. WorldSense is intended to facilitate ease-of-use and mobility since everything needed for the VR experience is built into the headset.<ref name=”3”></ref><ref name=”4”> Robertson, A. (2017). Google’s new VR headset is still a prototype — but it really works. Retrieved from https://www.theverge.com/2017/5/18/15656290/google-io-prototype-standalone-vr-headset-hands-on-htc-lenovo-qualcomm</ref>

According to Robertson (2017), the technology “relies primarily on front-facing cameras to detect edges in the environment and use them as reference points, so the headset can tell how far you’ve walked in real space and translate that into virtual motion as well.” Therefore, it is also a [[markerless tracking]] device, not needing any [[fiducial markers]] for positional tracking. WorldSense is intended to facilitate ease-of-use and mobility since everything needed for the VR experience is built into the headset.<ref name=”3”></ref><ref name=”4”> Robertson, A. (2017). Google’s new VR headset is still a prototype — but it really works. Retrieved from https://www.theverge.com/2017/5/18/15656290/google-io-prototype-standalone-vr-headset-hands-on-htc-lenovo-qualcomm</ref>