NDLI: A video object segmentation algorithm based on the feature learning and shape tracking

Content Provider	IEEE Xplore Digital Library
Author	Sang Hak Lee Hyung Il Koo Nam Ik Cho
Copyright Year	2010
Description	Author affiliation: Department of Electrical Engineering and Computer Science, Seoul National University, Korea (Sang Hak Lee; Hyung Il Koo; Nam Ik Cho)
Abstract	This paper proposes a video object segmentation algorithm based on the conditional random field (CRF) framework. A foreground object in the first frame is segmented by training the CRF on user interaction, i.e., by using user scribbles corresponding to foreground and background respectively for CRF training. The data term of the energy function in this CRF framework is designed as a function of the score of texture-color classifier trained by AdaBoost. From the second frame, a weighted data term that encodes the shape of the object is added to this energy function. The boundary pixels of the current frame are predicted by the optical flow, and a smaller cost is given to a pixel closer to the boundary and vice versa. Also, a confidence of optical flow is defined, and a larger weight is given to the data term when the confident is high. As a result, the data term related with the shape becomes important when the motion estimation is reliable, and conversely the color-texture term becomes important otherwise. Experimental results show that the proposed data term keeps the boundary correctly in most cases and provides comparable result when compared to a state-of-the-art method.
Starting Page	4673
Ending Page	4676
File Size	525784
Page Count	4
File Format	PDF
ISBN	9781424479924
ISSN	15224880
e-ISBN	9781424479948
e-ISBN	9781424479931
DOI	10.1109/ICIP.2010.5650802
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-09-26
Publisher Place	Hong Kong
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Pixel Shape Optical imaging Object segmentation Adaptive optics Image segmentation Video sequences optical flow object segmentation machine learning shape tracking AdaBoost
Content Type	Text
Resource Type	Article

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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