Surface Crack Detection Algorithm Based on Double Threshold and Tensor Voting

Huixian, 李慧娴 Li; Bin, 张斌 Zhang; Dan, 刘丹 Liu; Tengda, 杨腾达 Yang; Wenhao, 宋文豪 Song; Fengyu, 李峰宇 Li

doi:10.3788/lop55.051010

Cited by 3 publications

(1 citation statement)

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“…(2) Edge detection: The pixels are encoded into stick-and-ball tensors by tensor voting [68,69]. The attribution of pixels (edge point and non-edge point) relies on combining their significance in the linear combination of the tensor, and the edge pixel points are retained.…”

Section: Tensor Voting (Tv)mentioning

confidence: 99%

Fractal and Multifractal Characteristics of Lineaments in the Qianhe Graben and Its Tectonic Significance Using Remote Sensing Images

Liu

Han

et al. 2021

Remote Sensing

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The distribution and characteristics of geological lineaments in areas with active faulting are vital for providing a basis for regional tectonic identification and analyzing the tectonic significance. Here, we extracted the lineaments in the Qianhe Graben, an active mountainous area on the southwest margin of Ordos Block, China, by using the tensor voting algorithm after comparing them with the segment tracing algorithm (STA) and LINE algorithm in PCI Geomatica Software. The main results show that (1) the lineaments in this area are mostly induced by the active fault events with the main trending of NW–SE, (2) the box dimensions of all lineaments, NW–SE trending lineaments, and NE–SW trending lineaments are 1.60, 1.48, and 1.44 (R2 > 0.9), respectively, indicating that the faults exhibit statistical self-similarity, and (3) the lineaments have multifractal characteristics according to the mass index τ(q), generalized fractal dimension D(q), fractal width (Δα = 2.25), fractal spectrum shape (f(α) is a unimodal left-hook curve), and spectrum width (Δf = 1.21). These results are related to the tectonic activity in this area, where a higher tectonic activity leads to more lineaments being produced and a higher fractal dimension. All of these results suggest that such insights can be beneficial for providing potential targets in reconstructing the tectonic structure of the area and trends of plate movement.

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Section: Tensor Voting (Tv)mentioning

confidence: 99%