3D Image Saliency Detection Based on Log-Gabor Filtering and Saliency Map Fusion Optimization

Baobao Zong; Chaofeng Li; Qingbing Sang

doi:10.3788/LOP56.081003

Laser & Optoelectronics Progress, Volume. 56, Issue 8, 081003(2019)

3D Image Saliency Detection Based on Log-Gabor Filtering and Saliency Map Fusion Optimization

Baobao Zong¹, Chaofeng Li², and Qingbing Sang^1、*

¹ Jiangsu Provincial Engineering Laboratory of Pattern Recognition and Computational Intelligence, School of Internet of Things Engineering, Jiangnan University, Wuxi, Jiangsu 214122, China

² Institute of Logistics Science & Engineering, Shanghai Maritime University, Shanghai 200135, China;

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Figures & Tables(10)

Fig. 1. Framework of stereoscopic image saliency detection model

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Fig. 2. Saliency map in each step. (a) Input image; (b) background map; (c) foreground map; (d) optimized map; (e) fixation density map

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Fig. 3. Visual comparison among different saliency maps. (a) Input left view image;(b) left view image saliency map; (c) texture saliency map; (d) depth saliency map; (e) 3D saliency map; (f) enhanced 3D saliency map; (g) fixation density map

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Fig. 4. ROC curves of different saliency maps

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Fig. 5. P-R curves of different saliency maps

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Fig. 6. ROC curves of different models

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Fig. 7. P-R curves of different models

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Table 1. Performance comparison among different saliency maps
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Table 1. Performance comparison among different saliency maps
Saliency map PLCC KLD AUC
Left view 0.563 0.366 0.713
Texture 0.223 0.388 0.589
Depth 0.466 0.211 0.631
3D 0.711 0.213 0.759

Table 2. Performance comparison among different models
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Table 2. Performance comparison among different models
Model PLCC KLD AUC
Model in Ref. [6] 0.410 0.605 0.670
Model in Ref. [5] 0.342 0.552 0.619
Model in Ref. [8] 0.660 0.288 0.681
Model in Ref. [7] 0.703 0.260 0.740
Proposed 0.711 0.213 0.759

Table 3. Computation time of each saliency detection model
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Table 3. Computation time of each saliency detection model
Model Time cost /s
Model in Ref. [6] 3.412
Model in Ref. [5] 1.498
Model in Ref. [8] 0.319
Model in Ref. [7] 87.609
Proposed 18.281

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Baobao Zong, Chaofeng Li, Qingbing Sang. 3D Image Saliency Detection Based on Log-Gabor Filtering and Saliency Map Fusion Optimization[J]. Laser & Optoelectronics Progress, 2019, 56(8): 081003

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