Towards automatic power line detection for a UAV surveillance system using pulse coupled neural filter and an improved Hough transform

Li, Zhengrong; Liu, Yuee; Walker, Rodney A.; Hayward, Ross; Zhang, Jinglan

doi:10.1007/s00138-009-0206-y

Cited by 220 publications

(108 citation statements)

References 5 publications

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“…The Hough transform is capable of good anti-noise performance [38] and is less sensitive to partial blockage. As such, it is widely used in the extraction of linear objects such as power lines [39], green houses [40], crop direction [41], and architecture [42]. Windthrown trees have obvious linear characteristics, so the Hough transform was adopted in this study for extraction purposes.…”

Section: Fine Extraction Of Individual Windthrown Treesmentioning

confidence: 99%

A Novel Approach for Coarse-to-Fine Windthrown Tree Extraction Based on Unmanned Aerial Vehicle Images

2017

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Surveys of windthrown trees, resulting from hurricanes and other types of natural disasters, are an important component of agricultural insurance, forestry statistics, and ecological monitoring. Aerial images are commonly used to determine the total area or number of downed trees, but conventional methods suffer from two primary issues: misclassification of windthrown trees due to the interference from other objects or artifacts, and poor extraction resolution when trunk diameters are small. The objective of this study is to develop a coarse-to-fine extraction technique for individual windthrown trees that reduces the effects of these common flaws. The developed method was tested using UAV imagery collected over rubber plantations on Hainan Island after the Nesat typhoon in China on 19 October 2011. First, a coarse extraction of the affected area was performed by analyzing the image spectrum and textural characteristics. A thinning algorithm was then used to simplify downed trees into skeletal structures. Finally, fine extraction of individual trees was achieved using a line detection algorithm. The completeness of windthrown trees in the study area was 75.7% and the correctness was 92.5%. While similar values have been reported in other studies, they often include constraints, such as tree height. This technique is proposed to be a more feasible extraction algorithm as it is capable of achieving low commission errors across a broad range of tree heights and sizes. As such, it is a viable option for extraction of windthrown trees with a small trunk diameter.

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Section: Fine Extraction Of Individual Windthrown Treesmentioning

confidence: 99%

A Novel Approach for Coarse-to-Fine Windthrown Tree Extraction Based on Unmanned Aerial Vehicle Images

2017

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“…The most important thing in this method is that the overhead power line must be in the field of view, otherwise it will fail, e.g. [13][14]. In this paper, an inspection strategy is proposed to track the overhead power lines for the camera on UAVs by combining these two strategies.…”

Section: Introductionmentioning

confidence: 99%

“…In our work, a particle filter [28][29] is employed to track the parameters (θ, a, h , k) in Hough space, thus reducing the search time. Each pixel coordinate of edge point is plugged into parabola expression (13) to vote finding the peaks of Acc i (θ i , a i , h i , k i ). Once the parabola lines have been detected, the overhead power lines can be located.…”

mentioning

confidence: 99%

A 3D Laboratory Test-Platform for Overhead Power Line Inspection

Liu

Dong

et al. 2016

International Journal of Advanced Robotic Systems

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Using unmanned aerial vehicles (UAVs) for performing automatic inspection of overhead power lines instead of foot patrols is an attractive option, since doing so is safer and have considerable cost savings, among other advantages. The purpose of this paper is to design a 3D laboratory test-platform to simulate UAVs' inspection of transmission lines and secondly, proposing an automated inspection strategy for UAVs in order to follow transmission lines. The construction and system architecture of our 3D testplatform is described in this paper. The inspection strategy contributes to knowledge pertaining to an automated inspection procedure and includes two steps: flight path planning for UAVs and visual tracking of the transmission lines. The 3D laboratory test-platform is applied to test the performance of the proposed strategy and the tracking results of our inspection strategy are subsequently presented. The availability of the 3D laboratory test-platform and the efficiency of our tracking algorithm are verified by experiments.

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“…The success of these approaches depends on the accuracy of the edges while line thickness is not considered. Although this family of methods has been largely applied in many real contexts [27][28][29][30], its main drawback is the strict requirement of the complete specification of the target object's exact shape to achieve precise localization, which is often difficult and not available for complex curvilinear structures in practice.…”

Section: Introductionmentioning

confidence: 99%

Automated Extraction of Archaeological Traces by a Modified Variance Analysis

et al. 2015

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This paper considers the problem of detecting archaeological traces in digital aerial images by analyzing the pixel variance over regions around selected points. In order to decide if a point belongs to an archaeological trace or not, its surrounding regions are considered. The one-way ANalysis Of VAriance (ANOVA) is applied several times to detect the differences among these regions; in particular the expected shape of the mark to be detected is used in each region. Furthermore, an effect size parameter is defined by comparing the statistics of these regions with the statistics of the entire population in order to measure how strongly the trace is appreciable. Experiments on synthetic and real images demonstrate the effectiveness of the proposed approach with respect to some state-of-the-art methodologies.

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Towards automatic power line detection for a UAV surveillance system using pulse coupled neural filter and an improved Hough transform

Cited by 220 publications

References 5 publications

A Novel Approach for Coarse-to-Fine Windthrown Tree Extraction Based on Unmanned Aerial Vehicle Images

A Novel Approach for Coarse-to-Fine Windthrown Tree Extraction Based on Unmanned Aerial Vehicle Images

A 3D Laboratory Test-Platform for Overhead Power Line Inspection

Automated Extraction of Archaeological Traces by a Modified Variance Analysis

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