Poisson dish sampling
2016-08-23
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The sampling distribution of noise characteristics with blue background is widely used in computer graphics. Although Poisson disk distributions are known to have excellent blue noise characteristics, they are usually considered too expensive to compute in real time. We propose a new method by O dart sampling (n logn) of time, introducing a new and effective variation of O generated Poisson disk distribution (n) of time and space. The key technology & nbsp; almost all problems in computer graphics involve sampling. It is well known that the nature of the sampling distribution can greatly improve the quality of the final results of ect. In particular, the blue noise modes perform particularly well in this case because of their spectrum of DC spikes in the low-energy ring. High quality sampling method is particularly important when ray tracing in the sampling image plane, not only because they better capture the sampling of continuous function, but also because the reconstruction function is directly displayed in this setting, so any sampling error will be particularly obvious to the audience.
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泊松
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