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FLASH-BASED ANTI-ALIASING TECHNIQUES FOR HIGH-ACCURACY HIGH-EFFICIENCY MASK SYNTHESIS
FLASH-BASED ANTI-ALIASING TECHNIQUES FOR HIGH-ACCURACY HIGH-EFFICIENCY MASK SYNTHESIS
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机译:基于闪存的抗锯齿技术,用于高精度,高效的面膜合成
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摘要
Techniques and systems for converting a non-bandlimited pattern layout into a band-limited pattern image are described. During operation, the system receives the non-bandlimited pattern layout which comprises one or more polygons. The system further receives an anti-aliasing filter (AAF) kernel, wherein the AAF kernel is configured to convert a non-bandlimited pattern into a band-limited pattern. The system then constructs an AAF lookup table for the AAF kernel, wherein the AAF lookup table contains precomputed values for a set of convolution functions which are obtained by convolving a set of basis functions with the AAF kernel. Next, the system creates a sampled pattern layout by applying a grid map over the pattern layout. The system then obtains the band-limited pattern image by using the AAF lookup table to convolve the AAF kernel with each grid location in the sampled pattern layout.
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