Abstract
Eye-trackers are expected to be used in portable daily-use devices. However, it must register object information and define a unified coordinate system in advance for human--computer interaction and quantitative analysis. Therefore, we propose a semantic 3D gaze mapping to collect gaze information from multiple people on the unified map and detect focused objects automatically. The semantic 3D map can be reconstructed using keyframe-based semantic segmentation and structure-from-motion, and the 3D point-of-gaze can also be computed on the map. We confirmed that the fixation time of the focused object can be calculated through an experiment without prior information.
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