CSE445Computer Vision
ModulesIntroductionImage & Signal Foundations

Images and Signal Foundations

Sampling, quantization, color, and linear filtering that turn light into arrays and arrays into structure.

L03CO1M01 · IntroductionMidterm

Key Terms

SamplingQuantizationColor SpacesConvolutionImage GradientsGaussian Pyramid

Python Tools

OpenCVNumPySciPyMatplotlib

Textbook Reference

Szeliski Ch.3

Topics Covered

  1. 1Image formation, sampling, aliasing, and the Nyquist criterion
  2. 2Quantization, dynamic range, and noise models
  3. 3Color representation: RGB, HSV, and linear versus gamma-encoded intensity
  4. 4Linear filtering and convolution: kernels, separability, and boundary handling
  5. 5Image gradients, derivative-of-Gaussian filters, and scale via Gaussian pyramids

Learning Outcomes

  • Explain sampling and quantization and predict aliasing artifacts
  • Apply convolution with common kernels and reason about separability and borders
  • Compute image gradients and build a Gaussian scale pyramid

Lecture PDFs

Images and Signal Foundations

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