'Feature descriptor' diaporamas de présentation

A NOVEL APPROACH TO SEGMENTATION AND REGISTRATION OF ECHO-CARDIOGRAPHIC IMAGES

A NOVEL APPROACH TO SEGMENTATION AND REGISTRATION OF ECHO-CARDIOGRAPHIC IMAGES. Vidhyadhari Gondle Supervisor: Jayanthi Sivaswamy CVIT, IIIT Hyderabad, Hyderabad, India. Echo-cardiographic Images.

500 views • 50 slides

Invariance in Feature Detection

Invariance in Feature Detection. Harris corner detection - recap. v. Key idea: distinctiveness We want patches that are unique compared to neighbors E( u,v ) is appearance change of a window W when moved in the x-direction by u and y direction by v. u. Second Moment matrix.

409 views • 39 slides

Another kind of feature: blob

316 views • 30 slides

Making Action Recognition Robust to Occlusions and Viewpoint Changes

329 views • 21 slides

Harris detector

Harris detector. Convert image to greyscale Apply Gaussian convolution to blur the image and remove noise Calculate gradient of image in x and y direction for every pixel For each point in the image,

236 views • 12 slides

SecurDisc

230 views • 8 slides

Building Recognition

Building Recognition. Landry Huet Sung Hee Park DW Wheeler. Problem Statement. Identify Stanford buildings from photos 16 buildings Database of 300 pictures Fast enough to implement real time system. SIFT descriptor. Img #. Bldg. color histogram. Image database. Feature database.

143 views • 6 slides