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Author:Klang, Outi
Title:Stereo image analysis in MATLAB and 3D reconstruction
Stereokuvien analysointi MATLAB:lla ja 3D rekonstruointi
Publication type:Master's thesis
Publication year:2010
Pages:iii + 62 + [32]      Language:   eng
Department/School:Maanmittaustieteiden laitos
Main subject:Fotogrammetria   (Maa-57)
Supervisor:Haggrén, Henrik
Instructor:Wiggenhagen, Manfred
OEVS:
Electronic archive copy is available via Aalto Thesis Database.
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Location:P1 Ark Aalto  456   | Archive
Keywords:photogrammetry
MATLAB
feature extraction
corresponding points
3D-reconstruction
PhotoModeler
fotogrammetria
MATLAB
piirreirrotus
vastinpisteet
3D rekonstruointi
PhotoModeler
Abstract (eng): The primary idea was to create a program for MATLAB that would analyze two stereo images and he able to detect corresponding points in them.
The study was interesting since there were no studies like this to he found even though MATLAB is common software among schools and universities.
Also the code could he freely distributed to other MATLAB users using the MATLABCentra1 website.

The suggested program analyzes interesting points from the first image of the stereo image pair and then uses correlation, standard deviation and relative orientation parameters to solve the positioning of the corresponding points in the second image of the stereo image pair.
Results that the program produces are relatively good considering that MATLAB is not the best platform for image analysis.
The results of MATLAB's methods' usefulness for image analyzation are discussed as well as the results of four image pairs that are analyzed and their 3D-models are reconstructed.
Abstract (fin): Diplomityön lähtökohtana oli kehittää MATLAB-ohjelma, joka analysoi stereokuvapareja ja löytää niistä vastinpisteitä.
Aihe oli kiinnostava, koska kyseenalaisia tutkimuksia ei ole löydettävissä, vaikka MATLAB on laajalle levinnyt ohjelmisto kouluissa ja yliopistoissa, sekä koodia voidaan jakaa vapaasti muille MATLAB:n käyttäjille MATLABCentraI-verkkosivujen kautta.

Diplomityössä esitetty ohjelma etsii kiinnostavat pisteet stereokuvaparin ensimmäiseltä kuvalta, jonka jälkeen se käyttää korrelaatiota, keskihajontaa sekä keskinäisen orientoinnin parametreja ratkaistakseen vastinpisteiden sijainnit stereokuvaparin toiselta kuvalta.
Ohjelman antamat tulokset ovat kohtalaisen hyvät ottaen huomioon, että MATLAB ei ole paras ohjelma kuvien analysointiin.

Diplomityössä esitetään tulokset MATLAB:n omien metodien käytännöllisyydestä kuvien analysointiin sekä tulokset neljän stereokuvaparin analysoinnista ja niistä löydettyjen vastinpisteidenavulla luoduista 3D-malleista.
ED:2010-07-06
INSSI record number: 39819
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