Proceedings ArticleDOI
A Novel Algebaric Variety Based Model for High Quality Free-Viewpoint View Synthesis on a Krylov Subspace
Mansi Sharma,Gowtham Ragavan,B Arathi +2 more
- pp 1-8
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TLDR
A new depth-image-based rendering algorithm for free-viewpoint 3DTV applications that effectively handles artifacts appear in wide-baseline spatial view interpolation and arbitrary camera movements and results excel with state-of-the-art methods in quantitative and qualitative evaluation.Abstract:
This paper presents a new depth-image-based rendering algorithm for free-viewpoint 3DTV applications. The cracks, holes, ghost countors caused by visibility, disocclusion, resampling problems associated with 3D warping lead to serious rendering artifacts in synthesized virtual views. This challenging problem of hole filling is formulated as an algebraic matrix completion problem on a higher dimensional space of monomial features described by a novel variety model. The high-level idea of this work is to exploit the linear or nonlinear structures of the data and interpolate missing values by solving algebraic varieties associated with Hankel matrices as a member of Krylov subspace. The proposed model effectively handles artifacts appear in wide-baseline spatial view interpolation and arbitrary camera movements. Our model has a low runtime and results excel with state-of-the-art methods in quantitative and qualitative evaluation.read more
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Book
图像处理和分析的图模型：理论与应用 (Image Processing and Analysis with Graphs: Theory and Practice)
TL;DR: This book discusses Graph Theory concepts and definitions used in Image Processing and Analysis, and the role of Graphs in Matching Shapes and in Categorization in GED Computation Applications of GED.
Journal ArticleDOI
2T-UNET: A Two-Tower UNet with Depth Clues for Robust Stereo Depth Estimation
TL;DR: The depth estimation problem is revisits, avoiding the explicit stereo matching step using a simple two-tower convolutional neural network, and the proposed algorithm is entitled 2T-UNet, which surpasses state-of-the-art monocular and stereo depth estimation methods on the challenging Scene dataset.
References
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Proceedings ArticleDOI
Boundary Filtering on Synthesized Views of 3D Video
Cheon Lee,Yo-Sung Ho +1 more
TL;DR: A boundary filtering method for synthesized images that replaces boundary noise area using depth map with corresponding texture information from the other reference image to improve visual quality of the synthesized virtual viewpoint images.
Proceedings Article
Algebraic Variety Models for High-Rank Matrix Completion
TL;DR: In this paper, the sampling requirements for matrix completion under a variety model with a focus on a union of affine subspaces are studied. But the sampling complexity of matrix completion is not addressed in this paper.
Proceedings ArticleDOI
Efficient stereo-to-multiview synthesis
TL;DR: This paper presents a new method for view synthesis that is both fast and accurate and has applications in free-viewpoint television, angular scalability for 3D video coding/decoding, and stereo-to-multiview conversion.
Journal ArticleDOI
3DTV at home: eulerian-lagrangian stereo-to-multiview conversion
Petr Kellnhofer,Piotr Didyk,Szu-Po Wang,Pitchaya Sitthi-Amorn,William T. Freeman,Frédo Durand,Wojciech Matusik +6 more
TL;DR: This work proposes a real-time system that can convert stereoscopic video to a high-quality multiview video that can be directly fed to automultiscopic displays and analyzes the visual quality and robustness of the technique on a number of synthetic and real-world examples.
Journal ArticleDOI
A flexible architecture for multi-view 3DTV based on uncalibrated cameras
TL;DR: The proposed signal representation improves the interactivity of dense point-based methods, making them appropriate for modeling the scene semantics and free-viewpoint 3DTV applications, and a ''selective'' warping technique is proposed that takes the advantage of temporal coherence to reduce the computational overhead.