Fusing Shape-from-shading with Stereo
Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
The thesis deals with incorporating the shape-from-shading technique into the multi-view stereo (MVS) reconstruction framework using the Oren-Nayar reflectance model for rough natural materials. Two methods for enhancing the MVS algorithm with new photo-consistency measure are proposed. Experiments with the laboratory images as well as with images of Mars's surface were conducted, proving that the proposed plane-sweeping method using shading information suitable for combining with MVS can nd the correct position of surface in 3D scene. The experiments also showed, that the Oren-Nayar reflectance model is very accurate for some real-world materials and it can be succesfuly used in the plane-sweeping method to accomplish better results than the Lambert's reflectance model. With precisely estimated material parameters and the light source and camera directions, it is possible to achieve the accuracy of few centimeters in estimating the position of real surface in the scene.
Place, publisher, year, edition, pages
2011. , 64 p.
Technology, stereo vision, Oren-Nayar reflectance model, shape-from-shading, 3D reconstruction
IdentifiersURN: urn:nbn:se:ltu:diva-51031Local ID: 84231430-c7bc-4b80-81cb-16bc902dc349OAI: oai:DiVA.org:ltu-51031DiVA: diva2:1024394
Subject / course
Student thesis, at least 30 credits
Space Engineering, master's level
Validerat; 20110825 (anonymous)2016-10-042016-10-04Bibliographically approved