Zisserman - Object Level Grouping for Video Shots Josef...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Object Level Grouping for Video Shots Josef Sivic Frederik Schaffalitzky Andrew Zisserman Robotics Research Group, Department of Engineering Science, University of Oxford
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Results
Background image of page 2
Results
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Summary of work Segment semi rigidly moving 3D objects in a shot Detect regions of interest Track regions of interest Partition tracks into groups belonging to same object Repair long range tracks (occlusions in a scene) Identify same object from different viewing aspects (Another paper: ‘Video Google’)
Background image of page 4
Basic Segmentation and Tracking Detect affine invariant regions of interest represented by ellipse
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Basic Segmentation and Tracking Can also use points of interest or corner detector
Background image of page 6
Basic Segmentation and Tracking Create tracks for matching regions/points in consecutive frames They use normalized cross correlation and RANSAC algorithm http://homepages.inf.ed.ac.uk/rbf/CVonline/L
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
RANSAC Algorithm Stands for “Random Sample Consensus” Used for fitting a model to data with outliers
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 23

Zisserman - Object Level Grouping for Video Shots Josef...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online