Real-Time Stereo Matching Algorithm with Hierarchical Refinement

Yufeng Wang; Hongwei Wang; Yu Liu; Mingquan Yang; Jicheng Quan

doi:10.3788/AOS202040.0915002

Journals >Acta Optica Sinica >Volume 40 >Issue 9 >Page 0915002 > Article

Acta Optica Sinica
Vol. 40, Issue 9, 0915002 (2020)

Real-Time Stereo Matching Algorithm with Hierarchical Refinement

Yufeng Wang^1,2, Hongwei Wang^2,3,**, Yu Liu², Mingquan Yang², and Jicheng Quan^1,2,*

Author Affiliations

¹University of Naval Aviation, Yantai, Shandong 264001, China

²Aviation University of Air Force, Changchun, Jilin 130022, China

³Information Engineering University, Zhengzhou, Henan 450001, China

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DOI: 10.3788/AOS202040.0915002 Cite this Article Set citation alerts

Yufeng Wang, Hongwei Wang, Yu Liu, Mingquan Yang, Jicheng Quan. Real-Time Stereo Matching Algorithm with Hierarchical Refinement[J]. Acta Optica Sinica, 2020, 40(9): 0915002 Copy Citation Text

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Fig. 1. Whole architecture of proposed algorithm

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Fig. 2. Structure of FEM

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Fig. 3. Three DRM prototypes. (a) Prototype 1; (b) prototype 2; (c) prototype 3

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Fig. 4. Structure of MBF

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Fig. 5. Hierarchical results of proposed method. (a) Left image; (b)

{\hat{d}}_{5}

; (c)

Math input error

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Fig. 6. Visual results of proposed method. (a) Left image; (b) α_F=0.000; (c) α_F=0.001; (d) α_F=0.010; (e) α_F=0.100; (f) α_F=1.000

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Fig. 7. Visual results of proposed method. (a) Left image; (b) disparity map; (c) error map; (d) local details

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b	L=2	L=3	L=4	L=5	L=6	L=7
1	1.6	8.5	20.8	26.1	24.0	23.7
2	1.6	8.5	20.8	24.2	24.4	22.0
3	1.6	8.3	20.7	22.7	23.0	19.9
4	1.6	8.1	19.7	21.8	21.2	20.5
5	1.6	8.1	19.5	21.0	20.6	20.5
6	1.6	8.0	18.5	20.4	20.6	19.5

Table 1. Operating rates of proposed method under different L and bframe·s^-1

Parameter	L=4	L=5	L=6	L=7
${E_{ep}}_{}$ /pixel	1.108	1.106	1.117	1.180
${E_{D 1}}_{}$ /%	4.922	4.826	4.772	4.999

Table 2. Performance evaluation of proposed method under different L(b=3)

Parameter	b=1	b=2	b=3	b=4	b=5	b=6
${E_{ep}}_{}$ /pixel	1.133	1.115	1.106	1.097	1.077	1.089
${E_{D 1}}_{}$ /%	4.870	4.859	4.826	4.668	4.636	4.724

Table 3. Performance evaluation of proposed method under different b (L=5)

Prototype of DRM	FEM		${E_{ep}}_{}$ /pixel	${E_{D 1}}_{}$ /%	${f_{run}}_{}$ /(frame·s^-1)
Prototype of DRM	Fusion	SPP	${E_{ep}}_{}$ /pixel	${E_{D 1}}_{}$ /%	${f_{run}}_{}$ /(frame·s^-1)
Prototype 1	√	√	2.580	17.028	21.5
Prototype 2	√	√	1.517	6.753	19.1
Prototype 3	√	√	1.077	4.636	21.0
Prototype 3	√		1.105	4.707	21.9
Prototype 3		√	1.141	4.924	24.3

Table 4. Performance evaluation of models with different versions (L=5,b=5)

α_F	E_ep/pixel	E_D1/%
0.000	0.776	2.926
0.001	0.773	2.879
0.010	0.785	2.940
0.100	0.758	2.822
1.000	0.766	2.853

Table 5. Performance evaluation of proposed method under different α_F(L=5,b=5)

Method	All			Noc			Runtime /s
Method	${E_{D 1 ⁃ bg}}_{}$ /%	${E_{D 1 ⁃ fg}}_{}$ /%	${E_{D 1 ⁃ all}}_{}$ /%	${E_{D 1 ⁃ bg}}_{}$ /%	${E_{D 1 ⁃ fg}}_{}$ /%	${E_{D 1 ⁃ all}}_{}$ /%	Runtime /s
M2S_CSPN^[25]	1.51	2.88	1.74	1.40	2.67	1.61	0.50
GANet-deep^[26]	1.48	3.46	1.81	1.34	3.11	1.63	1.80
WSMCnetEB^[23]	1.72	4.19	2.13	1.51	3.57	1.85	0.39
DeepPruner(best)^[22]	1.87	3.56	2.15	1.71	3.18	1.95	0.18
PSMNet^[18]	1.86	4.62	2.32	1.71	4.31	2.14	0.41
iResNet-i2^[15]	2.25	3.40	2.44	4.11	3.72	4.05	0.12
CRL^[14]	2.48	3.59	2.67	2.32	3.12	2.45	0.47
GC-net^[17]	2.21	6.16	2.87	2.02	5.58	2.61	0.90
PBCP^[10]	2.58	8.74	3.61	2.27	7.71	3.17	68.00
SGM-Net^[11]	2.66	8.64	3.66	2.23	7.44	3.09	67.00
MC-CNN-arct^[4]	2.89	8.88	3.89	2.48	7.64	3.33	67.00
DeepPruner(fast)^[22]	2.32	3.91	2.59	2.13	3.43	2.35	0.06
DispNetC^[13]	4.32	4.41	4.34	4.11	3.72	4.05	0.06
MADnet^[28]	3.75	9.20	4.66	3.45	8.41	4.27	0.02
Proposed	2.59	4.80	2.96	2.22	4.14	2.54	0.05

Table 6. Performance evaluation of different methods on KITTI2015 test dataset

Yufeng Wang, Hongwei Wang, Yu Liu, Mingquan Yang, Jicheng Quan. Real-Time Stereo Matching Algorithm with Hierarchical Refinement[J]. Acta Optica Sinica, 2020, 40(9): 0915002

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