Downsampling - PowerPoint PPT Presentation

2. Multirate Signals

2. Multirate Signals. Content. Sampling of a continuous time signal Downsampling of a discrete time signal Upsampling (interpolation) of a discrete time signal. Sampling: Continuous Time to Discrete Time. Time Domain:. Frequency Domain:. Reason:. same. same. Antialiasing Filter.

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An Efficient Method for DCT-Domain Image Resizing with Mixed Field/Frame-Mode Macroblocks

An Efficient Method for DCT-Domain Image Resizing with Mixed Field/Frame-Mode Macroblocks. Changhoon Yim and Michael A. Isnardi IEEE TRANSACTION ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY, VOL. 9, NO. 5, AUGUST 1999. Outline. Introduction DCT-Domain Image Resizing

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Fast Signal Processing Algorithms

Fast Signal Processing Algorithms. Summary and Requirements. Summary. Time continuous signals and their spectrum; Time discrete signals Relationship to analog signals (sampling) Spectrum: Discrete Time Fourier Transform (DTFT) Discrete Fourier Transform and its relationship to DTFT.

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352 views • 7 slides

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