Reconstructing photorealistic 3D models from image sequence using domain decomposition method

Hanwei Xiong; Ming Pan; Xiangwei Zhang

doi:10.1117/12.838215

24 November 2009 Reconstructing photorealistic 3D models from image sequence using domain decomposition method

Hanwei Xiong, Ming Pan, Xiangwei Zhang

Proceedings Volume 7513, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology; 75132J (2009) https://doi.org/10.1117/12.838215
Event: International Conference on Optical Instrumentation and Technology, 2009, Shanghai, China

Abstract

In the fields of industrial design, artistic design and heritage conservation, physical objects are usually digitalized by reverse engineering through some 3D scanning methods. Structured light and photogrammetry are two main methods to acquire 3D information, and both are expensive. Even if these expensive instruments are used, photorealistic 3D models are seldom available. In this paper, a new method to reconstruction photorealistic 3D models using a single camera is proposed. A square plate glued with coded marks is used to place the objects, and a sequence of about 20 images is taken. From the coded marks, the images are calibrated, and a snake algorithm is used to segment object from the background. A rough 3d model is obtained using shape from silhouettes algorithm. The silhouettes are decomposed into a combination of convex curves, which are used to partition the rough 3d model into some convex mesh patches. For each patch, the multi-view photo consistency constraints and smooth regulations are expressed as a finite element formulation, which can be resolved locally, and the information can be exchanged along the patches boundaries. The rough model is deformed into a fine 3d model through such a domain decomposition finite element method. The textures are assigned to each element mesh, and a photorealistic 3D model is got finally. A toy pig is used to verify the algorithm, and the result is exciting.

Citation Download Citation

Hanwei Xiong, Ming Pan, and Xiangwei Zhang "Reconstructing photorealistic 3D models from image sequence using domain decomposition method", Proc. SPIE 7513, 2009 International Conference on Optical Instruments and Technology: Optoelectronic Imaging and Process Technology, 75132J (24 November 2009); https://doi.org/10.1117/12.838215

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KEYWORDS

3D modeling

Reverse modeling

3D image reconstruction

3D image processing

Image segmentation

Visual process modeling

Finite element methods

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