Nighttime Dehazing Based on Mixed Filtering and Transmission Optimization

Yin XIANG; Guangfeng CHEN; Xia LI

doi:10.3788/gzxb20215012.1210003

Journals >Acta Photonica Sinica >Volume 50 >Issue 12 >Page 1210003 > Article

Acta Photonica Sinica
Vol. 50, Issue 12, 1210003 (2021)

Nighttime Dehazing Based on Mixed Filtering and Transmission Optimization

Yin XIANG¹, Guangfeng CHEN^1、*, and Xia LI^1、2

Author Affiliations

¹School of Mechanical Engineering， Donghua University， Shanghai 201620， China

²Zhejiang Tobacco Company Wenzhou Company， Wenzhou ， Zhejiang 325000， China

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DOI: 10.3788/gzxb20215012.1210003 Cite this Article

Yin XIANG, Guangfeng CHEN, Xia LI. Nighttime Dehazing Based on Mixed Filtering and Transmission Optimization[J]. Acta Photonica Sinica, 2021, 50(12): 1210003 Copy Citation Text

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Fig. 1. The algorithm flow chart

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Fig. 2. Comparison of ambient light estimation and dehazing by different methods

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Fig. 3. Comparison of the effects of high-light compensation

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Fig. 4. Comparison of nighttime dehazing

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Fig.	QU Y et al^［18］			LI Y et al^［23］			ZHANG J et al^［21］			ZHANG J et al^［22］			Ours
Fig.	SSIM	PSNR	CIEDE	SSIM	PSNR	CIEDE	SSIM	PSNR	CIEDE	SSIM	PSNR	CIEDE	SSIM	PSNR	CIEDE
N1	0.648	17.711	25.611	0.648	17.078	19.390	0.662	16.827	24.269	0.813	23.473	13.374	0.722	21.302	12.715
N2	0.825	20.013	25.349	0.785	22.409	20.535	0.604	16.792	24.755	0.853	24.581	19.095	0.875	23.336	9.879
N3	0.566	15.677	34.451	0.617	16.087	18.850	0.390	10.847	38.178	0.773	22.188	16.037	0.807	23.065	10.441
N4	0.651	19.691	32.548	0.835	20.538	24.970	0.509	12.383	31.265	0.802	17.728	19.609	0.862	27.378	8.717
N5	0.673	14.347	39.351	0.721	17.354	19.806	0.791	19.226	19.437	0.886	19.814	20.679	0.893	23.855	9.641
N6	0.782	21.569	18.590	0.505	15.928	38.064	0.464	12.897	34.054	0.856	22.522	16.096	0.850	26.994	6.379
N7	0.811	21.462	24.160	0.754	19.301	24.117	0.578	12.760	29.582	0.864	19.481	13.986	0.840	23.879	9.816
N8	0.718	19.716	25.487	0.789	20.211	15.214	0.557	14.504	29.129	0.919	24.864	13.196	0.937	28.517	5.432
N9	0.645	12.607	39.688	0.544	13.537	24.930	0.516	16.180	21.882	0.785	21.197	20.353	0.847	24.699	9.159
N10	0.714	16.437	29.113	0.624	14.883	21.399	0.488	12.455	32.707	0.812	22.313	15.336	0.770	20.74	14.063
AVG	0.703	17.923	29.435	0.682	17.733	22.727	0.556	14.487	28.526	0.836	21.816	16.776	0.840	24.382	9.624

Table 1. Comparison index of nighttime dehazing effect

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Sizes	LI Y et al/s	ZHANG J et al/s	Ours/s	Ours_fast/s
320×240	8.165	0.445	0.532	0.242
640×480	44.925	1.942	2.608	1.278
1 280×720	131.540	5.214	8.476	4.536

Table 2. Algorithm speed comparison

Yin XIANG, Guangfeng CHEN, Xia LI. Nighttime Dehazing Based on Mixed Filtering and Transmission Optimization[J]. Acta Photonica Sinica, 2021, 50(12): 1210003

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