Lingli Xu, Xiaopo Zhu, Yixing Hou, Min Li, Xuewu Zhang. Culvert Crack Defect Segmentation Algorithm Based on Enhanced Hue Features[J]. Laser & Optoelectronics Progress, 2020, 57(8): 081016
- Laser & Optoelectronics Progress
- Vol. 57, Issue 8, 081016 (2020)
Fig. 1. Flow chart of hue feature enhancement and extraction
Fig. 2. Comparison of guided filtering effect. (a) Unfiltered blue channel; (b) partial enlargement of (a); (c) traditional guided filtering effect; (d) partial enlargement of (c); (e) proposed guided filtering effect; (f) partial enlargement of (e)
Fig. 3. Rough segmentation results. (a) Enhanced hue feature map; (b) rough segmentation result
Fig. 4. Comparison of threshold segmentation effect. (a) Original images; (b) in Ref. [15]; (c) maximum entropy segmentation; (d) local AT method; (e) our rough segmentation
Fig. 5. Comparison of segmentation effect. (a) Original images; (b)watershed segmentation algorithm; (c) in Ref. [16]; (d) our rough segmentation
Fig. 6. Segmentation results of proposed method. (a) Segmentation results based on figure 4(e); (b) segmentation results based on figure 5(d)
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Table 1. Experimental parameters
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Table 2. Image segmentation performance qualitative index
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