IEEE TRANSACTIONS ON IMAGE PROCESSING, VOL. 24, NO. 8, AUGUST 2015 |
Spatiotemporal Saliency Detection for Video |
Sequences Based on Random Walk with Restart |
Supplemantary Materials |
Hansang Kim | Youngbae Kim | Jae-Young Sim | Chang-Su Kim | |||
hansangkim@mcl.korea.ac.kr | youngbaekim@mcl.korea.ac.kr | jysim@unist.ac.kr | cskim@mcl.korea.ac.kr | |||
Korea University | Korea University | UNIST | Korea University |
Abstract |
A novel saliency detection algorithm for video sequences based on the random walk with restart (RWR) is proposed in this work. We adopt RWR to model the human visual system, which first perceives temporal information and then spatial information in each frame. Specifically, we find a temporal saliency distribution using the features of motion distinctiveness, temporal consistency, and abrupt change. Among them, the motion distinctiveness is derived by comparing the motion profiles of image patches. Then, we employ the temporal saliency distribution as a restarting distribution of the random walker. Also, we design the transition probability matrix for the walker using the spatial features of intensity, color, and compactness. Finally, we estimate the spatiotemporal saliency distribution by finding the steady-state distribution of the walker. The proposed algorithm detects foreground salient objects faithfully, while suppressing cluttered backgrounds effectively, by incorporating the spatial transition matrix and the temporal restarting distribution systematically. Experimental results on various video sequences demonstrate that the proposed algorithm outperforms conventional saliency detection algorithms qualitatively and quantitatively. |
Comparison with the Conventional Algorithms
1. MPEG dataset [1] (3 video sequences) |   | 2. NTT dataset [2] (9 video sequences) |   | 3. MCL dataset(9 video sequences) | |||||||||||||||||||
Coastguard | Hall1 | Stefan | Bird1 | Bird2 | Board | Flight | Fox | Horse | Rhino | Ski | Wildcat | Ball | Car | Campus | Court | Crowd | Hall2 | Road | Square | Stair | |||
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GT | ![]() |
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STC [3] | ![]() |
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GBVS [4] | ![]() |
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SRA [5] | ![]() |
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DVA [6] | ![]() |
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SSR [7] | ![]() |
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FSR [8] | ![]() |
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ISS [9] | ![]() |
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MCE [10] | ![]() |
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HBC [11] | ![]() |
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RBC [11] | ![]() |
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STSD [12] | ![]() |
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CAS [13] | ![]() |
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LSD [14] | ![]() |
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QUAT [15] | ![]() |
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GMR [16] | ![]() |
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HSD [17] | ![]() |
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Proposed | ![]() |
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Comparative Video Sequences
Downloads |