Abstract
We introduce a simple and effective method for retrieval of videos showing a specific event, even when the videos of that event were captured from significantly different viewpoints. Appearance-based methods fail in such cases, as appearances change with large changes of viewpoints. Our method is based on a pixel-based feature, 'motion barcode', which records the existence/non-existence of motion as a function of time. While appearance, motion magnitude, and motion direction can vary greatly between disparate viewpoints, the existence of motion is viewpoint invariant. Based on the motion barcode, a similarity measure is developed for videos of the same event taken from very different viewpoints. This measure is robust to occlusions common under different viewpoints, and can be computed efficiently. Event retrieval is demonstrated using challenging videos from stationary and hand held cameras.
Original language | English |
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Title of host publication | 2015 IEEE International Conference on Image Processing, ICIP 2015 - Proceedings |
Publisher | IEEE Computer Society |
Pages | 2621-2625 |
Number of pages | 5 |
ISBN (Electronic) | 9781479983391 |
DOIs | |
State | Published - 9 Dec 2015 |
Event | IEEE International Conference on Image Processing, ICIP 2015 - Quebec City, Canada Duration: 27 Sep 2015 → 30 Sep 2015 |
Publication series
Name | Proceedings - International Conference on Image Processing, ICIP |
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Volume | 2015-December |
ISSN (Print) | 1522-4880 |
Conference
Conference | IEEE International Conference on Image Processing, ICIP 2015 |
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Country/Territory | Canada |
City | Quebec City |
Period | 27/09/15 → 30/09/15 |
Bibliographical note
Publisher Copyright:© 2015 IEEE.
Keywords
- Motion Feature
- Video Event Retrieval