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(The Eurographics Association, 2022) Miyamoto, Junpei; Koike, Hideki; Amano, Toshiyuki; Hideaki Uchiyama; Jean-Marie Normand
In this study, we propose a method for real-world gaze guidance by projecting an image onto a real-world object and changing its appearance based on visual saliency. In the proposed method, an image of the object is first acquired. Next, the image is changed such that the visual prominence of the object is increased and the image is changed so that the visual prominence of other parts of the object is decreased. Finally, the modified image is re-projected onto the object itself. Consequently, the object's appearance and visual prominence are altered, and the user's gaze is focused on the desired object. In this study, we propose an image processing method that changes the saturation of an object. We call this the "saturation filter." A coaxial projector-camera system was used to apply the proposed gaze guidance method proposed in this study to a 3D object. The coaxial projector-camera system does not need to be recalibrated when an object moves. In this study, two experiments were conducted to verify the effectiveness of the proposed method in guiding a viewer's gaze. As a result, it was confirmed that the proposed method can achieve the effect of gaze guidance.