CV in a Nutshell (||) Yi Li inNutshell.htm

Outline Paper discussion Image Processing (overview) – Diffusion Process Image Processing (filtering) – Filter Banks Image Processing (filtering) – Noise Removal

Paper discussion Edge detection and Smoothing – Diffusion Homogenous Isotropic flux – Diffusion as PDE whiteboard

Paper discussion Active Contours without Edges – Active shape – Snake – Active appearance – PDE

Useful Concepts in SP ARMA model – AR – MA – ARMA Filtering / Filter banks

Filtering Fourier transform – Matrix-vector form High pass, low pass, and band pass – Nyquist frequency Filter banks – Downsample and upsample – Perfect reconstruction – JPEG compression

Image Processing (1) Histogram – Equalization Color space conversion – RGB / HSV / LAB Coding and Compression Reconstruction – Medical imaging

Image Processing (2) Processing – Sharpening? – Smoothing? Extracting useful information – Edge? – Boundary? – Texture analysis / synthesis? – Understanding?

Useful Concepts in IP Toeplitz matrix Sampling Transform – DFT – Cosine – Haar

Motion deblurring Y=Ax Conjugate gradient descent Trick: using convolution to solve the system effectively.

Q/A