Road Visibility Detection Based on Priori Theory of Dark and Bright Primary Colors

Song Haisheng; Liu Yuping; Zheng Hailiang; Ma Linzhao; Chen Zhao

doi:10.3788/LOP202158.0601001

Journals >Laser & Optoelectronics Progress >Volume 58 >Issue 6 >Page 601001 > Article

Laser & Optoelectronics Progress
Vol. 58, Issue 6, 601001 (2021)

Road Visibility Detection Based on Priori Theory of Dark and Bright Primary Colors

Song Haisheng, Liu Yuping^*, Zheng Hailiang, Ma Linzhao, and Chen Zhao

Author Affiliations

College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, Gansu 730070, China

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DOI: 10.3788/LOP202158.0601001 Cite this Article Set citation alerts

Song Haisheng, Liu Yuping, Zheng Hailiang, Ma Linzhao, Chen Zhao. Road Visibility Detection Based on Priori Theory of Dark and Bright Primary Colors[J]. Laser & Optoelectronics Progress, 2021, 58(6): 601001 Copy Citation Text

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Fig. 1. Simulated map of the highway

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Visibility image obtained by instrument method. (a) Visibility is 126 m; (b) visibility is 145 m; (c) visibility is 199 m; (d) visibility is 90 m; (e) visibility is 324 m; (f) visibility is 120 m

Fig. 2. Visibility image obtained by instrument method. (a) Visibility is 126 m; (b) visibility is 145 m; (c) visibility is 199 m; (d) visibility is 90 m; (e) visibility is 324 m; (f) visibility is 120 m

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Fig. 3. Surveillance video images at different time periods. (a) 12:00; (b) 12:10; (c) 12:20; (d) 12:30; (e) 12:40; (f) 12:50; (g) 13:00; (h) 15:30; (i) 15:40; (j) 15:50; (k) 16:00; (l) 16:10; (m) 16:20; (n) 16:30

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Image	Standard visibility /m	Transmittance value		Visibility detection value /m		Relative error /%
Image	Standard visibility /m	Bright primary color	Dark primary color	Ours	Preset targetobject method	Ours	Preset targetobject method
Fig. 2(a)	126	0.329116	0.345907	121	137	3.97	8.73
Fig. 2(b)	145	0.315548	0.330019	134	157	7.58	8.28
Fig. 2(c)	199	0.580061	0.597468	204	215	2.51	8.04
Fig. 2(d)	90	0.313006	0.322665	113	115	25.56	27.80
Fig. 2(e)	324	0.657181	0.687473	286	352	11.73	8.64
Fig. 2(f)	124	0.523549	0.548510	129	136	4.03	9.67

Table 1. Visibility test results of the two methods

Image	Time	Standardvisibility /m	Transmittance		Test results of our method /m	Relative error /%	Time /s
Image	Time	Standardvisibility /m	Bright primary color	Dark primary color	Test results of our method /m	Relative error /%	Time /s
Fig. 3(a)	12:00	172	0.651418	0.676039	161	6.39	3.2334
Fig. 3(b)	12:10	176	0.645132	0.669321	163	7.39	3.2905
Fig. 3(c)	12:20	178	0.647196	0.668539	184	3.37	3.2369
Fig. 3(d)	12:30	179	0.646053	0.667699	182	1.68	3.0564
Fig. 3(e)	12:40	189	0.676341	0.698315	187	1.06	3.3059
Fig. 3(f)	12:50	194	0.669971	0.690687	197	1.55	3.2396
Fig. 3(g)	13:00	199	0.671552	0.691588	204	2.51	3.1657
Fig. 3(h)	15:30	440	0.677167	0.707473	411	6.82	3.4077
Fig. 3(i)	15:40	463	0.675183	0.704489	424	8.42	3.3978
Fig. 3(j)	15:50	497	0.684527	0.710179	489	1.61	3.4516
Fig. 3(k)	16:00	518	0.677933	0.703151	492	5.01	3.3010
Fig. 3(l)	16:10	547	0.679082	0.703767	504	7.86	3.3100
Fig. 3(m)	16:20	589	0.69087	0.714063	545	7.47	3.0810
Fig. 3(n)	16:30	623	0.694836	0.716542	585	6.10	3.1039

Table 2. Visibility test result of our method

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