httpuserscecsanueduau yiliCVinNutshellhtm Outline Paper discussion Image Processing overview Diffusion Process Image Processing filtering Filter Banks Image Processing filtering ID: 789020
Download The PPT/PDF document "CV in a Nutshell (||) Yi Li" is the property of its rightful owner. Permission is granted to download and print the materials on this web site for personal, non-commercial use only, and to display it on your personal computer provided you do not modify the materials and that you retain all copyright notices contained in the materials. By downloading content from our website, you accept the terms of this agreement.
Slide1
CV in a Nutshell (||)
Yi Li
http://users.cecs.anu.edu.au/~
yili/CVinNutshell.htm
Slide2Outline
Paper discussion
Image Processing (overview)
Diffusion Process
Image Processing (filtering)
Filter Banks
Image Processing (filtering)
Noise Removal
Slide3Paper discussion
Edge detection and Smoothing
Diffusion
Homogenous
Isotropic
flux
Diffusion as PDE
whiteboard
Slide4Paper discussion
Active Contours without Edges
Active shape
Snake
Active appearance
PDE
Slide5Useful Concepts in SP
ARMA model
AR
MA
ARMA
Filtering / Filter banks
Slide6Filtering
Fourier
transform
Matrix-vector form
High pass, low pass, and band
pass
Nyquist
frequency
Filter
banks
Downsample
and
upsample
Perfect reconstruction
JPEG
compression
Slide7Image Processing (1)
Histogram
Equalization
Color space conversion
RGB / HSV / LAB
Coding and Compression
Reconstruction
Medical imaging
Slide8Image Processing (2)
Processing
Sharpening
?
Smoothing?
Extracting useful information
Edge?
Boundary?
Texture analysis / synthesis?
Understanding?
Slide9Useful Concepts in IP
Toeplitz
matrix
Sampling
Transform
DFT
Cosine
Haar
Slide10Motion deblurring
Y=
Ax
Conjugate gradient descent
Trick: using convolution to solve the system effectively.
Slide11Q/A