TY - GEN
T1 - A novel visual pipework inspection system
AU - Mineo, Carmelo
AU - Dobie, Gordon
AU - Summan, Rahul
AU - Mineo, Carmelo
AU - Macleod, Charles
AU - West, Graeme
AU - Jackson, William
AU - Lille, Alexandre
AU - Offin, Douglas
AU - Offin, Douglas
AU - Offin, Douglas
AU - Bolton, Gary
AU - Marshall, Stephen
PY - 2018
Y1 - 2018
N2 - The interior visual inspection of pipelines in the nuclear industry is a safety critical activity conducted during outages to ensure the continued safe and reliable operation of plant. Typically, the video output by a manually deployed probe is viewed by an operator looking to identify and localize surface defects such as corrosion, erosion and pitting. However, it is very challenging to estimate the nature and extent of defects by viewing a large structure through a relatively small field of view. This work describes a new visual inspection system employing photogrammetry using a fisheye camera and a structured light system to map the internal geometry of pipelines by generating a photorealistic, geometrically accurate surface model. The error of the system output was evaluated through comparison to a ground truth laser scan (ATOS GOM Triple Scan) of a nuclear grade split pipe sample (stainless steel 304L, 80mm internal diameter) containing defects representative of the application - the error was found to be submillimeter across the sample.
AB - The interior visual inspection of pipelines in the nuclear industry is a safety critical activity conducted during outages to ensure the continued safe and reliable operation of plant. Typically, the video output by a manually deployed probe is viewed by an operator looking to identify and localize surface defects such as corrosion, erosion and pitting. However, it is very challenging to estimate the nature and extent of defects by viewing a large structure through a relatively small field of view. This work describes a new visual inspection system employing photogrammetry using a fisheye camera and a structured light system to map the internal geometry of pipelines by generating a photorealistic, geometrically accurate surface model. The error of the system output was evaluated through comparison to a ground truth laser scan (ATOS GOM Triple Scan) of a nuclear grade split pipe sample (stainless steel 304L, 80mm internal diameter) containing defects representative of the application - the error was found to be submillimeter across the sample.
UR - http://hdl.handle.net/10447/425458
M3 - Conference contribution
T3 - AIP CONFERENCE PROCEEDINGS
SP - 220001-
BT - AIP Conference Proceedings
ER -