PhD Thesis…. The end!

June 10, 2016

After presenting and publishing some pending research, the PhD work is finished. The document is available @ Cabral, D. Video Interaction using pen-based technology. PhD Thesis, February, 2014.


Published Poster @ UIST2012

October 16, 2012

Cabral, D. and Correia, N. VideoInk: A Pen-based Approach for Video Editing. In Adjunct proceedings of the 25th annual ACM symposium on User interface software and technology (UIST Adjunct Proceedings’12 ), ACM, 2012, pp. 67-68.

bbTablet update for MSVC2010!

September 21, 2012

I made the bbTablet MSVC2010 update. The bbTablet was originally developed by William Baxter and updated by Adel Amro.

The bbTablet is a C++ API for applications that use Wacom tablets on Win32.
You can download the Wintab stuff from

Published Paper @ ACM MULTIMEDIA 2011

December 26, 2011

Diogo Cabral, João Valente, João Silva, Urândia Aragão, Carla Fernandes, and Nuno Correia. 2011. A creation-tool for contemporary dance using multimodal video annotation. In Proceedings of the 19th ACM international conference on Multimedia (MM ’11). ACM, New York, NY, USA, 905-908.


Getting Stylus Data in C/C++

July 5, 2011

Currently, I’m using these two C/C++frameworks to get stylus data like position or pressure:

bbTablet API

Wacom SDK

Grips and gestures on a multi-touch pen

May 16, 2011

Grips and gestures on a multi-touch pen (CHI2011)by

Hyunyoung Song     University of Maryland, College Park, College Park, Maryland, USA
Hrvoje Benko     Microsoft Research, Redmond, Washington, USA
Francois Guimbretiere     Cornell University, Ithaca, New York, USA
Shahram Izadi     Microsoft Research, Cambridge, United Kingdom
Xiang Cao     Microsoft Research, Cambridge, United Kingdom
Ken Hinckley     Microsoft Research, Redmond, Washington, USA

Acquiring and pointing: an empirical study of pen-tilt-based interaction

May 16, 2011

Acquiring and pointing: an empirical study of pen-tilt-based interaction (CHI2011) by

Yizhong Xin     Kochi University of Technology, Kamishi , Japan
Xiaojun Bi     University of Toronto, Toronto, Canada
Xiangshi Ren     Kochi University of Technology, Kamishi , Japan

The Power of PenPoint (chapter1)

April 27, 2011

“PenPoint is a new operating system designed and built from the ground up by GO Corporation for the unique requirements of mobile, pen-based computers.”

from “The Power of PenPoint“: chapter1 (1991) by Robert Carr, Dan Shafer

From Telautograph To iPad: 123 Years Of Tablet PCs

April 27, 2011

From Telautograph To iPad: 123 Years Of Tablet PCs

Recognizing Pen Grips for Natural User Interaction

March 10, 2011