Title
Model Recommendation with Virtual Probes for Egocentric Hand Detection
Abstract
Egocentric cameras can be used to benefit such tasks as analyzing fine motor skills, recognizing gestures and learning about hand-object manipulation. To enable such technology, we believe that the hands must detected on the pixel-level to gain important information about the shape of the hands and fingers. We show that the problem of pixel-wise hand detection can be effectively solved, by posing the problem as a model recommendation task. As such, the goal of a recommendation system is to recommend the n-best hand detectors based on the probe set - a small amount of labeled data from the test distribution. This requirement of a probe set is a serious limitation in many applications, such as ego-centric hand detection, where the test distribution may be continually changing. To address this limitation, we propose the use of virtual probes which can be automatically extracted from the test distribution. The key idea is that many features, such as the color distribution or relative performance between two detectors, can be used as a proxy to the probe set. In our experiments we show that the recommendation paradigm is well-equipped to handle complex changes in the appearance of the hands in first-person vision. In particular, we show how our system is able to generalize to new scenarios by testing our model across multiple users.
Year
DOI
Venue
2013
10.1109/ICCV.2013.326
ICCV
Keywords
Field
DocType
recommendation paradigm,virtual probes,recommendation system,ego-centric hand detection,egocentric hand detection,color distribution,probe set,model recommendation,n-best hand detector,pixel-wise hand detection,test distribution,model recommendation task,virtual probe,recommender systems,feature extraction
Recommender system,Computer vision,Object detection,Computer science,Motor skill,Gesture,Feature extraction,Artificial intelligence,Labeled data,Detector
Conference
Volume
Issue
ISSN
2013
1
1550-5499
Citations 
PageRank 
References 
35
0.91
13
Authors
2
Name
Order
Citations
PageRank
Cheng Li11047.28
Kris M. Kitani263072.32