| 摘要 |
A method comprises: receiving a first light beam carrying a visual image; generating a plurality of second light beams based on the first light beam, wherein each of the plurality of second light beams is a subset of the first light beam; determining an energy level for each of the plurality of second light beams; and determining a single possible set of pixels that comprises the visual image carried by the first light beam based upon the determined energy level.
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