Page 57: of Offshore Engineer Magazine (Jun/Jul 2014)

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Pipelines

Maritime’s Single Camera Metrology

System (SICAMS) can be used to measure a variety of subsea elements.

Images from Parker Maritime.

Dimeye Corp.

DimEye Corp.’s patented I-Photogramme- the dark try and video laser scan (VLS) technology can be used to address complex metrol- ogy projects, including reverse engineer- ing of in situ components, measurements of defects and anomalies such as pipe dents on fex joints, metrology of clos- ing spools and jumper hub alignment studies.

I-Photogrammetry can be used in con- junction with any digital camera; the user simply needs to capture the necessary photographs before sending them online to DimEye for 3D modeling. However, techniques can render dimension- ally accurate 3D images in regards to construction, seabed mapping, and damage analysis.

Parker Maritime

Parker Maritime’s single camera metrology system (SICAMS), developed in 2007, has been used to measure a variety of subsea elements including shipwrecks, structural dents, caissons, spools, and piping. This system retains its own standardized hardware

Laser aided photogrammetry is largely immune to subsea factors that have traditionally (including its own camera) to opti- hindered subsea metrology operations. mize the software’s ability to gener- ate accurate 3D renditions based on obtained 2D images. SICAMS has an Parker Maritime. “A set of coordinates the photographs need to meet various enhanced blunder detection and report- can be given for each laser point on the requirements that enable DimEye to cre- ing tool built into the processing soft- object being observed.” ate a digital 3D interpretation.

ware, which allows for a more accurate Due to the complex nature of SICAMS, “In certain situations we are able 3D rendition of the object being observed. Parker provides internal training to their to provide training classes for other

Similar to Savante’s VOXEL technology, engineers in conjunction with external companies to complete basic measure-

SICAMS often relies on laser scanning training regarding the related software. ment tasks,” says Arnauld Dumont, to optimize results. “We utilize lasers “It is mandatory that our engineers have Owner, DimEye Corp. “However, we for projecting a point pattern on subsea a dimensional control and understand- prefer to use our highly trained techni- structures for special applications,” says ing regarding surveying techniques,” cians to complete most measurement

Rolv Johannessen, Marketing Manager of Johannessen says. applications. In order to ensure accurate oedigital.com June 2014 | OE 59 058_OE0614_Pipelines2_Greg.indd 59 5/22/14 10:43 PM