liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Shape from Silhouette Scanner
Linköping University, Department of Science and Technology.
Linköping University, Department of Science and Technology.
2002 (Swedish)Independent thesis Basic level (professional degree)Student thesisAlternative title
Form från silhuett skanner (English)
Abstract [en]

The availability of digital models of real 3D objects is becoming more and more important in many different applications (e-commerce, virtual visits etc). Very often the objects to be represented cannot be modeled by means of the classical 3D modeling tools because of the geometrical complexity or color texture. In these cases, devices for the automatic acquisition of the shape and the color of the objects (3D scanners or range scanners) have to be used.

The scanner presented in this work, a Shape from silhouette scanner, is very cheap (it is based on the use of a simple digital camera and a turntable) and easy to use. While maintaining the camera on a tripod and the object on the turntable, the user acquires images with different rotation angles of the table. The fusion of all the acquired views enables the production of a digital 3D representation of the object.

Existing Shape from silhouette scanners operate in an indirect way. They subdivide the object definition space in a regular 3D grid and verify that a voxel belongs to the object by verifying that its 2D projection falls inside the silhouette of the corresponding image. Our scanner adopts a direct method: by using a new 3D representation scheme and algorithm, the Marching Intersections data structure, we can directly intersect all the 3D volumes obtained by the silhouettes extracted from the images.

Place, publisher, year, edition, pages
Institutionen för teknik och naturvetenskap , 2002. , 48 p.
Keyword [en]
Datorteknik, Visualization, 3D modeling, image processing and analysis, scanner
Keyword [sv]
National Category
Computer Engineering
URN: urn:nbn:se:liu:diva-1348ISRN: LITH-ITN-MT-EX--02/9--SEOAI: diva2:18671
Available from: 2002-08-30 Created: 2002-08-30

Open Access in DiVA

fulltext(970 kB)840 downloads
File information
File name FULLTEXT01.pdfFile size 970 kBChecksum SHA-1
Type fulltextMimetype application/pdf

By organisation
Department of Science and Technology
Computer Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 840 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 388 hits
ReferencesLink to record
Permanent link

Direct link