Sign in to use this feature.

Years

Between: -

Subjects

remove_circle_outline
remove_circle_outline

Journals

Article Types

Countries / Regions

Search Results (1)

Search Parameters:
Keywords = drifting wireless camera

Order results
Result details
Results per page
Select all
Export citation of selected articles as:
20 pages, 15278 KB  
Article
Design and Implementation of a Video-Frame Localization System for a Drifting Camera-Based Sewer Inspection System
by Yusuke Chikamoto, Yuki Tsutsumi, Hiroaki Sawano and Susumu Ishihara
Sensors 2023, 23(2), 793; https://doi.org/10.3390/s23020793 - 10 Jan 2023
Cited by 2 | Viewed by 3170
Abstract
To reduce the cost of inspecting old sewer pipes, we have been developing a low-cost sewer inspection system that uses drifting wireless cameras to record videos of the interior of a sewer pipe while drifting. The video’s data are transmitted to access points [...] Read more.
To reduce the cost of inspecting old sewer pipes, we have been developing a low-cost sewer inspection system that uses drifting wireless cameras to record videos of the interior of a sewer pipe while drifting. The video’s data are transmitted to access points placed in utility holes and further transmitted to a video server where each video frame is linked to its capturing position so that users can identify the damaged areas. However, in small-diameter sewer pipes, locating drifting nodes over the full extent of the pipeline using Wi-Fi-based localization is difficult due to the limited reach of radio waves. In addition, there is the unavailability of a GNSS signal. We propose a function to link each video frame to a position based on linear interpolation using landmarks detected by the camera and image processing. Experiments for testing the accuracy of the localization in an underground sewer pipe showed that all utility holes were successfully detected as landmarks, and the maximum location estimation accuracy was less than 11.5% of the maximum interval of landmarks. Full article
(This article belongs to the Special Issue Internet of Things for Smart City Application)
Show Figures

Figure 1

Back to TopTop