Determining a position of an object of a positioning network associated with a marine survey arrangement
AssigneeWesternGeco L.L.C.
InventorKenneth E. Welker
Life of this patent
Estimating the term…
Abstract
To determine a position of an object in a positioning network associated with a marine survey arrangement, images of targets on the object in the positioning network are captured with a plurality of cameras. Based on known positions of the plurality of cameras and known separation between the targets, positions of the targets are computed by processing the images. A position of the object is derived based on the positions of the targets.
Claims22
A method of determining a position of an object in a positioning network associated with a towed marine survey arrangement, comprising:
- capturing, with a plurality of cameras, images of targets on the object in the positioning network, wherein each of the cameras captures the images of the targets simultaneously, where the positioning network is for determining positions of elements in a survey spread of the marine survey arrangement;
- based on known positions of the plurality of cameras and known separation between the targets, computing positions of the targets by processing the images;
- and
- deriving the position of the object based on the positions of the targets.
A system comprising:
- a towed survey spread to acquire information about a subterranean structure;
- a platform;
- a positioning network configured to determine positions of elements in the survey spread;
- cameras coupled to the platform, the cameras to acquire images of targets on an object of the positioning network, wherein each of the cameras acquires the images of the targets simultaneously;
- and
- a controller to process the images to determine positions of the targets of the object, based on known positions of the cameras and a known separation distance between the targets.
An article comprising at least one non-transitory computer-readable storage medium containing instructions that upon execution cause a processor to:
- receive images of targets on an object in a positioning network captured by a plurality of cameras, wherein each of the cameras captures the images of the targets simultaneously, where the positioning network is for determining positions of elements in a survey spread of a towed marine survey arrangement;
- based on known positions of the plurality of cameras and a known separation distance between the targets, compute positions of the targets by processing the images;
- and
- derive a position of the object based on the positions of the targets.
Dependencies are inferred from the claim text.