Eye2Head Gesture: Integrating Saccade Gestures with Eye-Head Coordination for Target Selection in Virtual Reality ETRA006

We present the Eye2Head Gesture (E2H), a gaze-based technique that integrates saccade gestures with eye-head coordination for target selection in virtual reality. It involves a back-and-forth saccadic gesture, aligning the gaze with the head forward direction and then returning to the target to complete the selection. The first study identified the parameters for implementing the E2H technique, including visualization of the relay zone (i.e., the area anchor to the head’s forward direction), relay zone size, and saccade gesture duration. Four variants of the E2H were developed, each differing in the shape and timing of the relay zone. The second study evaluated four E2H variants against Dwell and Eye&Head techniques, revealing that Region-shaped variant of E2H outperformed others in speed, error, and fatigue. This work contributes a gaze-based technique that harnesses eye-head coordination, using saccadic gestures to enhance the efficiency of target selection, particularly for those at large angular distances.