Název:	A differential alignment approach for the extraction of photo textures
Autoři:	Buck, Matthias
Citace zdrojového dokumentu:	Journal of WSCG. 1997, vol. 5, no. 1-3, p. 31-39.
Datum vydání:	1997
Nakladatel:	Václav Skala - UNION Agency
Typ dokumentu:	článek article
URI:	http://hdl.handle.net/11025/15876 http://wscg.zcu.cz/wscg1997/wscg97.htm
ISSN:	1213-6972 (print) 1213-6980 (CD-ROM) 1213-6964 (online)
Klíčová slova:	fotografické textury;geometrické modelování;referenční snímek
Klíčová slova v dalším jazyce:	photo textures;geometric modelling;reference image
Abstrakt v dalším jazyce:	In this paper a method is presented to extract photo textures from perspective views of a real object and to map these textures on a geometry model of the same. The main task to be solved here is to recover the parameters of the perspective projection, which determine the appearance of the textures in the reference image. We propose to use a differential alingment approach to determine these parameters in a very user friendly and intuitive manner. The method bases on the superposition of the reference photo and a perpective projection of the known object geometry in one image. By a few simple 2d mouse operations, the projection parameters are optimized such that the object geometry is aligned to the reference view. Once this is achieved, the photo textures can be extracted and mapped onto the geometry model automatically.
Práva:	© Václav Skala - UNION Agency
Vyskytuje se v kolekcích:	Volume 5, number 1-3 (1997)

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