Deep Network Saliency Detection Based on Global Model and Local Optimization

Fig. 4. Saliency maps of different steps. (a) Original images; (b) global models; (c) images of local optimization; (d) final saliency maps; (e) ground truth images

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Fig. 5. PR curves of four data sets with different methods. (a) SOD; (b) PASCAL-S; (c) CSSD; (d) MSRA

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Fig. 6. Visual comparisons of our results and others. (a) Original images; (b) ground truth images; (c) proposed method; (d) LEGS; (e) DRFI; (f) HDCT; (g) wCtr; (h) PCA; (i) GBVS

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Table 1. Feature vectors of contrast descriptor

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Table 1. Feature vectors of contrast descriptor

Color texture feature			Differential feature
Feature	Descriptor	Dimension	Definition	Dimension
Average RGB value	a₁	3	d( $\begin{matrix} {a^{R}}_{1} \end{matrix}$ , $\begin{matrix} a_{1}^{I} \end{matrix}$ )	3
Average lab value	a₂	3	d( $\begin{matrix} {a^{R}}_{2} \end{matrix}$ , $\begin{matrix} {a^{I}}_{2} \end{matrix}$ )	3
Gabor filter response	r	24	d(r^R,r^I)	24
Maximum Gabor response	r	1	d(r^R,r^I)	1
RGB color histogram	h₁	24	χ²( $\begin{matrix} {h^{R}}_{1} \end{matrix}$ , $\begin{matrix} {h^{I}}_{1} \end{matrix}$ )	1
Lab color histogram	h₂	24	χ²( $\begin{matrix} {h^{R}}_{2} \end{matrix}$ , $\begin{matrix} {h^{I}}_{2} \end{matrix}$ )	1
HSV color histogram	h₃	24	χ²( $\begin{matrix} {h^{R}}_{3} \end{matrix}$ , $\begin{matrix} {h^{I}}_{3} \end{matrix}$ )	1

Table 2. Parameters of regional feature descriptor

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Table 2. Parameters of regional feature descriptor

Feature	Dimension	Feature	Dimension
Normalized x of regional center	1	Regional connectivity^[16]	1
Normalized y of regional center	1	RGB color variance	3
Normalized are	1	Lab color variance	3
Aspect ratio of bounding box	1	HSV color variance	3
Bounding box width	1	Gabor filter response variance	24
Bounding box length	1	Normalized area of neighborhood	1

Table 3. Comparison of F-measure scores with different methods%

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Table 3. Comparison of F-measure scores with different methods%

Dataset	Curve	Proposed method	LEGS method	DRFI method	HDCT method	wCtr method	GBVS method	PCA method	GC method	SF method	MR method
SOD	F-measure	73.1	67.4	70.2	65.4	63.7	61.3	54.9	50.6	55.3	54.2
SOD	MAE	20.4	21.2	24.1	26.6	24.5	26.9	25.3	28.8	26.7	27.4
CSSD	F-measure	84.6	83.1	78.8	70.5	66.8	65.3	57.5	55.7	54.5	67.5
CSSD	MAE	12.8	11.9	17.9	19.9	18.4	22.7	25.2	23.4	20.1	19.0
PASCAL	F-measure	75.3	74.9	69.9	60.4	61.1	69.3	53.1	61.6	57.4	58.3
PASCAL	MAE	14.7	15.5	20.3	22.9	20.1	17.8	23.9	25.5	21.4	21.2
MSRA	F-measure	91.2	90.5	91.9	80.5	78.3	65.9	70.1	68.2	62.5	78.3
MSRA	MAE	10.4	8.9	14.3	11.9	16.6	13.7	18.9	14.7	16.2	13.0

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Feng Liu, Tongsheng Shen, Shuli Lou, Bing Han. Deep Network Saliency Detection Based on Global Model and Local Optimization[J]. Acta Optica Sinica, 2017, 37(12): 1215005

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Paper Information

Category: Machine Vision

Received: Jul. 10, 2017

Accepted: --

Published Online: Sep. 6, 2018

The Author Email: Liu Feng (liufeng_cv@126.com)

DOI:10.3788/AOS201737.1215005

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