@InProceedings{Zhang-CVWW03, IS = { zkontrolovano 24 Apr 2003 }, UPDATE = { 2003-04-14 }, author = {Zhang, Huaifeng and Wu, Fuchao and {\v S}{\'a}ra, Radim }, title = {Affine Reconstruction Based on Affinely Corresponding Point Sets}, year = {2003}, pages = {73-76}, booktitle = {Computer Vision\,---\,CVWW'03~: Proceedings of the 8th Computer Vision Winter Workshop }, editor = { Drbohlav, Ond{\v r}ej }, publisher = { Czech Pattern Recognition Society }, address = { Prague, Czech Republic }, isbn = { 80-238-9967-8 }, book_pages = { 176 }, month = { February }, day = { 3-6 }, venue = { Valtice, Czech Republic }, annote = {In this paper we discuss the following observation: Suppose we are given a projective reconstruction Sp of a point set S, in which we can identify subsets Xp subset Sp and Yp subset Sp. Suppose we know that the X and Y must be mutually related by an (unknown) affine mapping Y = Ha X in S. Then it is possible to upgrade Sp to affine reconstruction. We show this problem has up to four solutions. If the internal camera parameters are known to be equal it is possible to choose a single solution. A simple experiment on simulated and real data shows that the problem is numerically feasible.}, keywords = {computer vision, structure reconstruction}, authorship = {60-30-10}, project = {MSMT Kontakt ME412}, }