# System and method for extracting dominant orientations from a scene

## Abstract

In one embodiment, a method of identifying the dominant orientations of a scene comprises representing a scene as a plurality of directional vectors. The scene may comprise a three-dimensional representation of a scene, and the plurality of directional vectors may comprise a plurality of surface normals. The method further comprises determining, based on the plurality of directional vectors, a plurality of orientations describing the scene. The determined plurality of orientations explains the directionality of the plurality of directional vectors. In certain embodiments, the plurality of orientations may have independent axes of rotation. The plurality of orientations may be determined by representing the plurality of directional vectors as lying on a mathematical representation of a sphere, and inferring the parameters of a statistical model to adapt the plurality of orientations to explain the positioning of the plurality of directional vectors lying on the mathematical representation of the sphere.

- Inventors:

- Publication Date:

- Research Org.:
- Massachusetts Institute of Technology, Cambridge, MA (United States)

- Sponsoring Org.:
- USDOE

- OSTI Identifier:
- 1360774

- Patent Number(s):
- 9,665,791

- Application Number:
- 14/678,585

- Assignee:
- Massachusetts Institute of Technology PNNL

- DOE Contract Number:
- FC02-99ER54512; FA8650-11-1-7154

- Resource Type:
- Patent

- Resource Relation:
- Patent File Date: 2015 Apr 03

- Country of Publication:
- United States

- Language:
- English

- Subject:
- 97 MATHEMATICS AND COMPUTING

### Citation Formats

```
Straub, Julian, Rosman, Guy, Freifeld, Oren, Leonard, John J., and Fisher, III;, John W..
```*System and method for extracting dominant orientations from a scene*. United States: N. p., 2017.
Web.

```
Straub, Julian, Rosman, Guy, Freifeld, Oren, Leonard, John J., & Fisher, III;, John W..
```*System and method for extracting dominant orientations from a scene*. United States.

```
Straub, Julian, Rosman, Guy, Freifeld, Oren, Leonard, John J., and Fisher, III;, John W.. Tue .
"System and method for extracting dominant orientations from a scene". United States.
doi:. https://www.osti.gov/servlets/purl/1360774.
```

```
@article{osti_1360774,
```

title = {System and method for extracting dominant orientations from a scene},

author = {Straub, Julian and Rosman, Guy and Freifeld, Oren and Leonard, John J. and Fisher, III;, John W.},

abstractNote = {In one embodiment, a method of identifying the dominant orientations of a scene comprises representing a scene as a plurality of directional vectors. The scene may comprise a three-dimensional representation of a scene, and the plurality of directional vectors may comprise a plurality of surface normals. The method further comprises determining, based on the plurality of directional vectors, a plurality of orientations describing the scene. The determined plurality of orientations explains the directionality of the plurality of directional vectors. In certain embodiments, the plurality of orientations may have independent axes of rotation. The plurality of orientations may be determined by representing the plurality of directional vectors as lying on a mathematical representation of a sphere, and inferring the parameters of a statistical model to adapt the plurality of orientations to explain the positioning of the plurality of directional vectors lying on the mathematical representation of the sphere.},

doi = {},

journal = {},

number = ,

volume = ,

place = {United States},

year = {Tue May 30 00:00:00 EDT 2017},

month = {Tue May 30 00:00:00 EDT 2017}

}