Discrete Periodic Signals and Fourier Transformations
In the first four chapters, we have concentrated on the wavelength description of electromagnetic radiation. It was shown that three numbers, derived by proper weighting of the electromagnetic spectrum, can carry all the information needed for human color vision. These three numbers however only specify the color for one point (or uniform patch) in the visual field. Meaningful images only arise if these signals are allowed to vary in space and time. In the following chapters, we therefore concentrate on how such spatially and temporally varying visual information can be processed by technical systems in a way that is optimized for a human observer.
KeywordsPeriodic Signal Reciprocal Lattice Voronoi Cell Discrete Signal Fourier Basis
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