Experiments on an RGB-D wearable vision system for egocentric activity recognition
Research output: Contribution to journal › Conference article › Research › peer-review
This work describes and explores novel steps towards activity recognition from an egocentric point of view. Activity recognition is a broadly studied topic in computer vision, but the unique characteristics of wearable vision systems present new challenges and opportunities. We evaluate a challenging new publicly available dataset that includes trajectories of different users across two indoor environments performing a set of more than 20 different activities. The visual features studied include compact and global image descriptors, including GIST and a novel skin segmentation based histogram signature, and state-of-the art image representations for recognition, including Bag of SIFT words and Convolutional Neural Network (CNN) based features. Our experiments show that simple and compact features provide reasonable accuracy to obtain basic activity information (in our case, manipulation vs. non-manipulation). However, for finer grained categories CNN-based features provide the most promising results. Future steps include integration of depth information with these features and temporal consistency into the pipeline.
Original language | English |
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Journal | IEEE Computer Society Conference on Computer Vision and Pattern Recognition Workshops |
Pages (from-to) | 611-617 |
Number of pages | 7 |
ISSN | 2160-7508 |
DOIs | |
Publication status | Published - 24 Sep 2014 |
Externally published | Yes |
Event | 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014 - Columbus, United States Duration: 23 Jun 2014 → 28 Jun 2014 |
Conference
Conference | 2014 IEEE Conference on Computer Vision and Pattern Recognition Workshops, CVPRW 2014 |
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Country | United States |
City | Columbus |
Period | 23/06/2014 → 28/06/2014 |
Bibliographical note
Publisher Copyright:
© 2014 IEEE.
ID: 302044204