Importance

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Abstract

A method of calculating a map in real-time includes receiving a calibrated map including a plurality of mappings. Each mapping is for transforming a respective two-dimensional coordinate of an array of two-dimensional coordinates to compensate for distortion at a predetermined temperature. The method includes receiving an array of vectors including a vector for each two-dimensional coordinate. The method includes receiving a current temperature of the holographic projector. The method includes determining a scaling factor based on the difference between the current temperature and the predetermined temperature. The method includes calculating a modified map based on the current temperature by, for each coordinate of the array of two-dimensional coordinates: multiplying the vector that relates to the respective coordinate of the array of two-dimensional coordinates by the scaling factor to output a scaled vector; applying the scaled vector to the respective mapping of the calibrated map; and outputting the modified map.

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First Claim