EGO-EXO: A Cooperative Manipulation Technique with Automatic Viewpoint Control

This work was a continuation of the Collaborative Hybrid Virtual Environment presented at the IEEE 3DUI Contest 2016. We performed modifications to our original asymmetric viewpoints and investigated differences in performance through a user study. Results were published at the IEEE Symposium on 3D User Interfaces as a poster, and later at the Symposium on Virtual and Augmented Reality (SVR) as a full paper.

Cooperative manipulation techniques allow multiple users to interact with an object together at the same time. This kind of collaboration allow users to solve complex tasks that would be difficult for a single user to perform. The EGO-EXO technique places two collaborating users in asymmetric viewpoint positions. It was developed from the premise that simultaneous control over navigation and manipulation by the user can increase the interaction complexity. Our technique allows one of the users to automatically follow the object while the other stays in a fixed position farther away. Our technique separates the degrees of freedom between the two users, matching the degrees to the most suitable viewpoints. Each user interacts with objects using complimentary manipulation techniques (virtual hand or raycasting with reeling), which were chosen based on which degrees they control.

@inproceedings{8802375,

title = {EGO-EXO: A Cooperative Manipulation Technique with Automatic Viewpoint Control},

author = {Leonardo Pavanatto Soares and Regis Kopper and Marcio Sarroglia Pinho},

url = {http://leonardopavanatto.com/wp-content/uploads/2019/12/EGOEXO_Paper.pdf, Paper},

doi = {10.1109/SVR.2018.00023},

year  = {2018},

date = {2018-10-30},

booktitle = {20th Symposium on Virtual and Augmented Reality (SVR)},

pages = {82-88},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}

@inproceedings{soares_design_2017,

title = {Design and preliminary evaluation of an EGO-Exocentric technique for cooperative manipulation},

author = {Leonardo Pavanatto Soares and Marcio Sarroglia Pinho and Regis Kopper},

url = {http://leonardopavanatto.com/wp-content/uploads/2019/12/EGO_EXO_Poster.pdf, Paper},

doi = {10.1109/3DUI.2017.7893342},

year  = {2017},

date = {2017-03-19},

booktitle = {IEEE Symposium on 3D User Interfaces (3DUI)},

pages = {203--204},

keywords = {},

pubstate = {published},

tppubtype = {inproceedings}

}