This paper describes a novel gaze-contingent display (GCD) using texture mapping and OpenGL. This new system has a number of key features: (a) it is platform independent, i.e. it runs on different computers and under different operating systems; (b) it is eye-tracker independent, since it provides an interactive focus+context display that can be easily integrated with any eye-tracker that provides real-time 2-D gaze estimation; (c) it is flexible in that it provides for straightforward modification of the main GCD parameters, including size and shape of the window and its border; and (d) through the use of OpenGL extensions it can perform local real-time image analysis within the GCD window. The new GCD system implementation is described in detail and some performance figures are given. Several applications of this system are studied, including gaze-contingent multi-resolution displays, gaze-contingent multi-modality displays, and gaze-contingent image analysis.
|Translated title of the contribution||Gaze-contingent display using texture mapping and OpenGL: System and applications|
|Title of host publication||ETRA 2004 - Eye Tracking Research and Applications Symposium, San Antonio, TX, United States|
|Publisher||Association for Computing Machinery (ACM)|
|Pages||11 - 18|
|Number of pages||8|
|Publication status||Published - 22 Mar 2004|