Slide 1Computer Vision : CISC 4/689 Corner Detection Basic idea: Find points where two edges meeti.e., high gradient in two directions Cornerness is undefined at a single…

Slide 1Feature extraction: Corners 9300 Harris Corners Pkwy, Charlotte, NC Slide 2 Why extract features? Motivation: panorama stitching We have two images – how do we combine…

Slide 1Feature points extraction Many slides are courtesy of Darya Frolova, Denis Simakov A low level building block in many applications: Structure from motion Object identification:…

1.Towards Mobile Enhanced Digital Collections Tito Sierra and Markus Wust NCSU Libraries The Second Internationalm-Libraries Conference June 24, 20092. Outline Mobile Computing:Past…

1. Harris corner detector 2. Moravec corner detector (1980) We should easily recognize the point by looking through a small window Shifting…

Slide 1Lecture 2: Convolution and edge detection CS4670: Computer Vision Noah Snavely From Sandlot ScienceSandlot Science Slide 2 Gaussian Kernel Source: C. Rasmussen Slide…

Slide 1Harris Corner Detector & Scale Invariant Feature Transform (SIFT) Slide 2 Harris Corner Detector Slide 3 Harris Detector: Intuition “flat” region: no change…

Slide 1 Or where do the pixels move? Alon Gat Slide 2 Given: two or more frames of an image sequence Wanted: Displacement field between two consecutive frames  optical…

Slide 1 Matching with Invariant Features Darya Frolova, Denis Simakov The Weizmann Institute of Science March 2004 Slide 2 Example: Build a Panorama M. Brown and D. G. Lowe.…

Slide 1 Features Digital Visual Effects Yung-Yu Chuang with slides by Trevor Darrell Cordelia Schmid, David Lowe, Darya Frolova, Denis Simakov, Robert Collins and Jiwon Kim…