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ACM SIGGRAPH Courses 2016
Frequency Analysis of Light Transport is a way to express Physically Based Rendering using tools from signal processing – the study of digitalized signals. It particularly designed to predict sampling rate, denoise under sampled images, perform anti-aliasing, etc. Many method have been proposed to deal with specific cases of light transport (such as motion, lenses, etc). This course introduces concepts and presents practical application scenarii of frequency analysis of light transport in a unified context. To ease the understanding of theoretical elements, frequency analysis will be introduced in pair with an implementation.

The slides notes and source code are available here