Rekonstrukcija 3D scene dualnom fotografijom

undergraduate thesis

• Title (english): 3D scene reconstruction using dual photography
• Author: Ema Moškatelo
• Mentor: Damir Seršić (mentor)
• Committee member: Damir Seršić (predsjednik povjerenstva)
• Committee member: Tin Vlašić (član povjerenstva)
• Committee member: Tomislav Matulić (član povjerenstva)
• Granter: University of Zagreb; Faculty of Electrical Engineering and Computing; Zagreb
• Defense date and country: 2023-07-04, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Computing

Abstract

Optičkim sustavom sastavljenim od dvije kamere moguće je razviti rekonstrukciju trodimenzionalne scene pomoću pomaka odgovarajućih elemenata sa slika.

Helmholtzov princip recipročnosti nalaže da izvor svjetla i senzor mogu zamijeniti mjesta. Dakle, jedna kamera može biti zamijenjena projektorom što se naziva dualnom fotografijom. Koristeći principe dualne fotografije i sažimajućeg očitavanja, ostvaren je sustav za estimaciju transportnog operatora svjetla iz smanjenog broja mjerenja. U izračunima se koriste samo slike projiciranih uzoraka, dakle nije potrebno uzimati u obzir fizikalna svojstva površine, sjene i međurefleksije.

Operator transporta svjetlosti omogućuje dobivanje slike iz gledišta projektora u različitim rezolucijama što u procesu izrade rekonstrukcije 3D scene olakšava proces traženja korespondentnih točaka koje su potrebne za izračun mape dispariteta.

Abstract (english)

With an optical system composed of two cameras, it is possible to develop a reconstruction of a three-dimensional scene using the displacement of the corresponding elements from the images.

The Helmholtz principle of reciprocity dictates that the light source and the sensor can switch places. Thus, one camera can be replaced by a projector, which is called dual photography. Using the principles of dual photography and condensed reading, a system for estimating the transport operator of light from a reduced number of measurements was realized. Only images of projected samples are used in the calculations, so it is not necessary to take into account the physical properties of the surface, shadows and interreflection.

The light transport operator makes it possible to obtain an image from the projector's point of view in different resolutions, which in the process of creating a 3D scene reconstruction enhances the process of searching for corresponding points that are needed for the calculation of the disparity map.

• Keywords: 3D rekonstrukcija; dualna fotografija; sažimajuće očitavanje; obrada slike
• Keywords (english): 3D reconstruction; dual photography; compressive sensing; image processing
• Language: croatian
• URN:NBN: urn:nbn:hr:168:392652
• Study programme: Title: Computing; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka računarstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2023-07-13 10:23:11