Pipe Inspection: Insider's View

Yuri Rzhanov
Associate Research Professor
Friday, Oct. 28, 2011, 3:00pm
Chase 130

We live in the world full of pipes. They carry all sorts of liquids and gases all around the globe. Pipes need regular inspection for manufacturing flaws, corroded areas and cracks - from inside as well as outside. Traditional techniques for inspection of smaller pipes with sharp bends are far from optimal. We report the results of feasibility study of a new approach to pipe inspection using the methods developed for computer vision.  Computer simulation results show that small modifications of the existing design of a commonly used inspection device can be successfully used to create mosaics of the inner pipe surface.


Yuri Rzhanov, an associate research professor, has a Ph.D. in Physics and Mathematics from the Russian Academy of Sciences. He completed his thesis on nonlinear phenomena in solid state semiconductors in 1983. Since joining the center in 2000, he has worked on a number of signal processing problems, including construction of large-scale mosaics from underwater imagery, automatic segmentation of acoustic backscatter mosaics, accurate measurements of underwater objects from stereo imagery.

His research interests include development of algorithms and their implementation in software for 3D reconstruction of underwater scenes, automatic detection and abundance estimation of various marine species from imagery acquired from ROV’s, AUV’s, towed and handheld cameras.