Development of an operational digital photogrammetric system for the North Sea oil and gas industry

John Turner

doi:10.1117/12.141376

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24 February 1993 Development of an operational digital photogrammetric system for the North Sea oil and gas industry

John Turner

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Proceedings Volume 1820, Videometrics; (1993) https://doi.org/10.1117/12.141376
Event: Applications in Optical Science and Engineering, 1992, Boston, MA, United States

Abstract

The Offshore Oil and Gas Industry in the North Sea has many requirements for three- dimensional measurements in air and underwater. A market audit found that use of conventional photogrammetry was being rejected for many applications because the information was not available fast enough. A development project was set up to replace the photographic cameras with a choice of video or high resolution digital electronic cameras, and the analysis system with a personal computer based image processing system. This solution is now in operation. The paper details the in-house development of the high resolution digital electronic camera and the personal computer based measurement hardware and software. It includes a discussion of the technological parameters, including the method for pixel for pixel correlation within the digital system, camera calibration techniques, the system algorithms, sub-pixel measurement and dimensional accuracy. It introduces the work that was carried out to make the final product acceptable to structural engineers, who now use it to transfer three- dimensional measurements to their CAD systems. It also looks at the work that is being carried out to transform the system into a closed loop control system for underwater robotic manipulators, which includes binary conversion, convolution filtering and tracking functions.

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John Turner "Development of an operational digital photogrammetric system for the North Sea oil and gas industry", Proc. SPIE 1820, Videometrics, (24 February 1993); https://doi.org/10.1117/12.141376

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