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US 8,897,539 B2Granted
Using images to create measurements of structures through the videogrammetric process
AssigneeMetalforming, Inc.
InventorsGeoffrey Stone, William Gaither Wilkins, Habib Fathi, Ioannis Brilakis
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Abstract
According to various embodiments, a stream of image frames depicting a structure in a scene are obtained. The stream of image frames may comprise first image frames from a first imaging device and second image frames from a second imaging device. Using the first image frames and the second image frames, a wireframe of at least a portion of the structure is generated. From the wireframe, as-built dimensions may be identified, materials estimates may be determined, and/or data for a fabrication device may be generated, for example.
Claims20
A non-transitory computer-readable medium embodying a program executable in a computing device, the program comprising:
- code that obtains a stream of image frames depicting a structure in a scene, the stream of image frames comprising a plurality of first image frames corresponding to a first imaging device and a plurality of second image frames corresponding to a second imaging device;
- code that identifies a plurality of edge pixels in a plurality of the image frames;
- code that identifies a plurality of groups of the edge pixels;
- code that identifies a plurality of preliminary lines based at least in part on the groups of the edge pixels;
- code that shortens the preliminary lines to thereby create a plurality of line segments;
- code that extends the line segments to thereby create a plurality of extended line segments;
- code that combines a plurality of the line segments to thereby create a plurality of lines;
- code that identifies a plurality of potential planes in a plurality of the image frames;
- code that matches a plurality of the lines for the first image frames with a plurality of the lines for the second image frames based at least in part on the potential planes to thereby identify a plurality of matched lines;
- code that identifies a camera set motion for the image frames;
- and
- code that generates a wireframe for at least a portion of the structure based at least in part on the matched lines and the camera set motion.
9 more elements
A system, comprising:
- at least one computing device;
- and
- a structure dimensioning system executable in the at least one computing device, the structure dimensioning system comprising:
- logic that obtains a stream of image frames depicting a structure in a scene, the stream of image frames comprising a plurality of first image frames corresponding to a first imaging device and a plurality of second image frames corresponding to a second imaging device;
- logic that generates a plurality of two-dimensional (2D) lines for at least a portion of the structure;
- logic that generates a plurality of three-dimensional (3D) lines using at least a subset of the 2D lines, the 3D lines representing a plurality of physical edges depicted in the stream of image frames;
- logic that identifies an imaging set motion for the stream of image frames;
- logic that adjusts the 3D lines based at least in part on the imaging set motion to thereby generate a plurality of adjusted 3D lines;
- and
- logic that generates a wireframe of at least a portion of the structure using at least a subset of the adjusted 3D lines.
7 more elements
A method, comprising:
- obtaining, in at least one computing device, a stream of image frames depicting a structure in a scene, the stream of image frames comprising a plurality of first image frames corresponding to a first imaging device and a plurality of second image frames corresponding to a second imaging device;
- generating, in the at least one computing device, a plurality of two-dimensional (2D) lines for at least a portion of the structure;
- generating, in the at least one computing device, a plurality of three-dimensional (3D) lines using at least a subset of the 2D lines, the 3D lines representing a plurality of physical edges depicted in the stream of image frames;
- identifying, in the at least one computing device, an imaging set motion for the stream of image frames;
- adjusting, in the at least one computing device, the 3D lines based at least in part on the imaging set motion to thereby generate a plurality of adjusted 3D lines;
- and
- generating, in the at least one computing device, a wireframe of at least a portion of the structure using at least a subset of the adjusted 3D lines.
4 more elements
Dependencies are inferred from the claim text.