This paper presents a novel technique to reduce the motion blur artifacts of foveal projection in a dynamic focus-pluscontext (DF+C) display. The DF+C display is generally configured with multiple projectors and provides a nonuniform spatial resolution that consists of high-resolution (hi-res) regions (foveal projection) and low-resolution regions (peripheral projection). A serious problem of the DF+C display is motion blur, which inevitably occurs when a foveal projection is moved by a pan-tilt mirror or gantry. We propose a solution that reduces the motion blur artifacts, and evaluate how this solution improves the image quality using both qualitative and quantitative experiments. Our proposed method defines an error function to assess the displayed image quality as the difference between an original hi-res image and the displayed image by considering the nonuniform spatial property of human visual acuity. Then, it decides the set of positions and moving techniques of foveal projections so that the sum of errors during a video sequence is minimized. Through experiment, we confirmed that the proposed method can provide a better image quality and significantly improve the motion blur artifacts when compared with a conventional DF+C display.
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