A compact projection system enabling topographical measurements for a miniaturized submersible explorer

Author

Jonsson, J. ; Berglund, M. ; Kratz, H. ; Nguyen, H. ; Thornell, G.

Author_Institution

Dept. of Eng. Sci., Uppsala Univ., Uppsala, Sweden

fYear

2011

fDate

5-9 June 2011

Firstpage

2518

Lastpage

2521

Abstract

To enable photogrammetry of underwater images using a miniaturized submersible explorer, a compact projection system has been developed. By registering the deformation of a known projected pattern, using a laser and a diffractive optical element (DOE), the distance to, shape and size of an object can be calculated. The DOE has been designed, using in-house developed software, and manufactured using microstructure technology. Distances to objects 45 to 30 cm away were determined to within 0.5 cm, and the developed GUI was able to recreate the shape from the measurements for easier examination of the object.

Keywords

diffractive optical elements; graphical user interfaces; photogrammetry; DOE; GUI; compact projection system; diffractive optical element; microstructure technology; miniaturized submersible explorer; size 45 cm to 30 cm; topographical measurements; underwater image photogrammetry; Cameras; Graphical user interfaces; Lithography; Measurement by laser beam; Optical imaging; US Department of Energy; Underwater vehicles; Diffractive optical element; miniaturization; photogrammetry;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International

Conference_Location

Beijing

ISSN

Pending

Print_ISBN

978-1-4577-0157-3

Type

conf

DOI

10.1109/TRANSDUCERS.2011.5969758

Filename

5969758