Image Sampling Lecture

Abstract

This lecture overviews spatial image frequency content and image sampling.  Rectangular and hexagonal sampling grids are presented. Sampled image frequency content is analyzed and a 2D version of Shannon theorem is presented. Analog image  reconstruction from digital images is overviewed.

Image frequency spectrum.

Fourier Transform of a) analog; b) discrete image.

Image-Sampling-v3.6.1-Summary

Understanding Questionnaire

https://docs.google.com/forms/image-sampling

Tutorial Exercises

1. 2D Signal Sampling Tutorial Exercise
2. Image Sampling Lattices Tutorial Exercise