| 摘要 |
Enhanced multi-touch detection, in which a graphical user interface for an application is projected onto a surface, and electromagnetic radiation is emitted. The electromagnetic radiation is collectively emitted by an array defining a layer aligned parallel with the surface and overlapping at least a region of the surface onto which the graphical user interface is projected. Electromagnetic radiation is detected that reflects off of an object interrupting the defined layer where the defined layer overlaps the region of the surface onto which the graphical user interface is projected, and indicating a position of the object is output.
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