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Sensors 2018, 18(1), 128; https://doi.org/10.3390/s18010128

Supervoxel Segmentation with Voxel-Related Gaussian Mixture Model

National Key Laboratory of Science and Technology on Multi-spectral Information Processing, School of Automation, Huazhong University of Science and Technology, Wuhan 430074, China
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Received: 30 October 2017 / Revised: 28 December 2017 / Accepted: 2 January 2018 / Published: 5 January 2018
(This article belongs to the Section Physical Sensors)
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Abstract

Extended from superpixel segmentation by adding an additional constraint on temporal consistency, supervoxel segmentation is to partition video frames into atomic segments. In this work, we propose a novel scheme for supervoxel segmentation to address the problem of new and moving objects, where the segmentation is performed on every two consecutive frames and thus each internal frame has two valid superpixel segmentations. This scheme provides coarse-grained parallel ability, and subsequent algorithms can validate their result using two segmentations that will further improve robustness. To implement this scheme, a voxel-related Gaussian mixture model (GMM) is proposed, in which each supervoxel is assumed to be distributed in a local region and represented by two Gaussian distributions that share the same color parameters to capture temporal consistency. Our algorithm has a lower complexity with respect to frame size than the traditional GMM. According to our experiments, it also outperforms the state-of-the-art in accuracy. View Full-Text
Keywords: superpixel; supervoxel; video segmentation; Gaussian mixture model; expectation– maximization superpixel; supervoxel; video segmentation; Gaussian mixture model; expectation– maximization
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Ban, Z.; Chen, Z.; Liu, J. Supervoxel Segmentation with Voxel-Related Gaussian Mixture Model. Sensors 2018, 18, 128.

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