| 摘要 |
An image projection/display system (referred to generally herein as a "display system") is provided to assist a pupil in speech development. The display system displays an image of a face viewed from the rear, as though the pupil were viewing a mask from behind. This "mask image" is projected in front of the pupil, and the mask image is manipulated to display proper lip, mouth, and tongue movement for a particular verbalization. Since the pupil is viewing the face on the mask image from behind, there is no need for the pupil to translate the lip, mouth, and tongue movements by reversing the left and right side. A tongue movement to the right on the mask image corresponds to a tongue movement to the right by the pupil.
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