1. CSE 473/573 Computer Vision and Image Processing (CVIP) Ifeoma Nwogu Lecture 35 – Review for midterm

2. 2 Schedule Last class – Overview of convolution neural networks Today – Midterm review Readings for today: – None 11/17/2014

3. 3 Midterm logistics In class; 45 minutes for 20-25 questions Similar in difficulty level to the quizzes Will cover topics we did in class; programming assignments are also fair game Close book exam 1--‐sided “cheat sheet” notes allowed on a standard “8.5x11” paper 11/17/2014

4. 4 Linear algebra foundations Review quiz 0 to get a sense of the LA questions Basic linear algebra definitions Vector and matrix operations Principal component analysis (PCA), eigenvalues and eigenvectors RANSAC 11/17/2014

5. 5 Photometry and color Reflection at surfaces Lambertian + specular model Shape from shading Color representation (linear and nonlinear color spaces) – No questions on Human color perception Physics of color 11/17/2014

6. 6 Linear filters Fundamentals of filtering Convolution and correlation Gradients Edge detectors Pyramids 11/17/2014

7. 7 Image features and textures Harris corner detector Blob detector Descriptors – Histogram of gradients – SIFT Texture extraction 11/17/2014

8. 8 Stereopsis Correspondence problem (disparity) Epipolar geometry Image rectification Depth estimation Homography Fundamental and essential matrices – Know when to use which 11/17/2014

9. 9 Motion estimation Estimating optical flow Lucas-Kanade flow equations Motion-based feature tracking 11/17/2014

10. 10 Clustering and Segmentation K-means clustering Mean-shift algorithm Features for segmentation 11/17/2014

11. 11 Object detection and recognition Detection via classification Person detection Bag-of-words representation Object detection evaluation 11/17/2014

12. 12 Probability concepts and classifiers Basic definitions Bayes rule Linear versus nonlinear classifiers 11/17/2014

13. 13 Deep architectures Artificial Neural networks – Perceptron – Multi-layer networks and backpropagation Motivation for deep architectures Uses of CNN 11/17/2014

14. Questions