no code implementations • 12 Apr 2023 • Moayed Haji Ali, Andrew Bond, Tolga Birdal, Duygu Ceylan, Levent Karacan, Erkut Erdem, Aykut Erdem
However, the applicability of such advancements to the video domain has been hindered by the difficulty of representing and controlling videos in the latent space of GANs.
1 code implementation • 23 Mar 2023 • Nathan Mankovich, Tolga Birdal
This paper presents a new, provably-convergent algorithm for computing the flag-mean and flag-median of a set of points on a flag manifold under the chordal metric.
no code implementations • 5 Nov 2022 • Levent Karacan, Tolga Kerimoğlu, İsmail İnan, Tolga Birdal, Erkut Erdem, Aykut Erdem
Giving machines the ability to imagine possible new objects or scenes from linguistic descriptions and produce their realistic renderings is arguably one of the most challenging problems in computer vision.
no code implementations • 13 Jul 2022 • Yang Zheng, Tolga Birdal, Fei Xia, Yanchao Yang, Yueqi Duan, Leonidas J. Guibas
To this end, we propose: (i) a hierarchical localization system, where we leverage temporal information and (ii) a novel environment-aware image enhancement method to boost the robustness and accuracy.
3 code implementations • 1 Jun 2022 • Mustafa Hajij, Ghada Zamzmi, Theodore Papamarkou, Nina Miolane, Aldo Guzmán-Sáenz, Karthikeyan Natesan Ramamurthy, Tolga Birdal, Tamal K. Dey, Soham Mukherjee, Shreyas N. Samaga, Neal Livesay, Robin Walters, Paul Rosen, Michael T. Schaub
Topological deep learning is a rapidly growing field that pertains to the development of deep learning models for data supported on topological domains such as simplicial complexes, cell complexes, and hypergraphs, which generalize many domains encountered in scientific computations.
no code implementations • 23 Mar 2022 • Alp Yurtsever, Tolga Birdal, Vladislav Golyanik
We present a hybrid classical-quantum framework based on the Frank-Wolfe algorithm, Q-FW, for solving quadratic, linearly-constrained, binary optimization problems on quantum annealers (QA).
no code implementations • CVPR 2022 • Mikaela Angelina Uy, Yen-Yu Chang, Minhyuk Sung, Purvi Goel, Joseph Lambourne, Tolga Birdal, Leonidas Guibas
We propose Point2Cyl, a supervised network transforming a raw 3D point cloud to a set of extrusion cylinders.
no code implementations • 29 Nov 2021 • Faria Huq, Adrish Dey, Sahra Yusuf, Dena Bazazian, Tolga Birdal, Nina Miolane
Our experiments demonstrate that constraining the synchronization on the Riemannian manifold $SO(n)$ improves the estimation of the functional maps, while our RLFM sampler provides for the first time an uncertainty quantification of the results.
1 code implementation • 25 Nov 2021 • Jiahui Huang, Tolga Birdal, Zan Gojcic, Leonidas J. Guibas, Shi-Min Hu
We present SyNoRiM, a novel way to jointly register multiple non-rigid shapes by synchronizing the maps relating learned functions defined on the point clouds.
2 code implementations • NeurIPS 2021 • Tolga Birdal, Aaron Lou, Leonidas Guibas, Umut Şimşekli
Disobeying the classical wisdom of statistical learning theory, modern deep neural networks generalize well even though they typically contain millions of parameters.
1 code implementation • CVPR 2022 • Jiayi Chen, Yingda Yin, Tolga Birdal, Baoquan Chen, Leonidas Guibas, He Wang
Regressing rotations on SO(3) manifold using deep neural networks is an important yet unsolved problem.
1 code implementation • ICCV 2021 • Davis Rempe, Tolga Birdal, Aaron Hertzmann, Jimei Yang, Srinath Sridhar, Leonidas J. Guibas
We introduce HuMoR: a 3D Human Motion Model for Robust Estimation of temporal pose and shape.
1 code implementation • CVPR 2021 • Zan Gojcic, Or Litany, Andreas Wieser, Leonidas J. Guibas, Tolga Birdal
We propose a data-driven scene flow estimation algorithm exploiting the observation that many 3D scenes can be explained by a collection of agents moving as rigid bodies.
no code implementations • CVPR 2021 • Tolga Birdal, Vladislav Golyanik, Christian Theobalt, Leonidas Guibas
We present QuantumSync, the first quantum algorithm for solving a synchronization problem in the context of computer vision.
1 code implementation • CVPR 2021 • Jiahui Huang, He Wang, Tolga Birdal, Minhyuk Sung, Federica Arrigoni, Shi-Min Hu, Leonidas Guibas
We present MultiBodySync, a novel, end-to-end trainable multi-body motion segmentation and rigid registration framework for multiple input 3D point clouds.
1 code implementation • 20 Dec 2020 • Haowen Deng, Mai Bui, Nassir Navab, Leonidas Guibas, Slobodan Ilic, Tolga Birdal
For the former we contributed our own dataset composed of five indoor scenes where it is unavoidable to capture images corresponding to views that are hard to uniquely identify.
1 code implementation • NeurIPS 2020 • Davis Rempe, Tolga Birdal, Yongheng Zhao, Zan Gojcic, Srinath Sridhar, Leonidas J. Guibas
We propose CaSPR, a method to learn object-centric Canonical Spatiotemporal Point Cloud Representations of dynamically moving or evolving objects.
2 code implementations • ECCV 2020 • Mai Bui, Tolga Birdal, Haowen Deng, Shadi Albarqouni, Leonidas Guibas, Slobodan Ilic, Nassir Navab
We present a multimodal camera relocalization framework that captures ambiguities and uncertainties with continuous mixture models defined on the manifold of camera poses.
1 code implementation • ECCV 2020 • Mikaela Angelina Uy, Jingwei Huang, Minhyuk Sung, Tolga Birdal, Leonidas Guibas
We introduce a new problem of retrieving 3D models that are deformable to a given query shape and present a novel deep deformation-aware embedding to solve this retrieval task.
no code implementations • CVPR 2020 • Tolga Birdal, Michael Arbel, Umut Şimşekli, Leonidas Guibas
We introduce a new paradigm, $\textit{measure synchronization}$, for synchronizing graphs with measure-valued edges.
no code implementations • 6 Feb 2020 • Zhangsihao Yang, Or Litany, Tolga Birdal, Srinath Sridhar, Leonidas Guibas
In this work, we wish to challenge this practice and use a neural network to learn descriptors directly from the raw mesh.
2 code implementations • 21 Jan 2020 • Christiane Sommer, Yumin Sun, Leonidas Guibas, Daniel Cremers, Tolga Birdal
We propose a new method for segmentation-free joint estimation of orthogonal planes, their intersection lines, relationship graph and corners lying at the intersection of three orthogonal planes.
2 code implementations • CVPR 2020 • Zan Gojcic, Caifa Zhou, Jan D. Wegner, Leonidas J. Guibas, Tolga Birdal
We present a novel, end-to-end learnable, multiview 3D point cloud registration algorithm.
2 code implementations • ECCV 2020 • Yongheng Zhao, Tolga Birdal, Jan Eric Lenssen, Emanuele Menegatti, Leonidas Guibas, Federico Tombari
We present a 3D capsule module for processing point clouds that is equivariant to 3D rotations and translations, as well as invariant to permutations of the input points.
no code implementations • CVPR 2019 • Tolga Birdal, Umut Şimşekli
We present an entirely new geometric and probabilistic approach to synchronization of correspondences across multiple sets of objects or images.
no code implementations • CVPR 2019 • Haowen Deng, Tolga Birdal, Slobodan Ilic
Our extensive quantitative and qualitative experiments suggests that our approach outperforms the state of the art in challenging real datasets of pairwise registration and that augmenting the keypoints with local pose information leads to better generalization and a dramatic speed-up.
no code implementations • 4 Jan 2019 • Tolga Birdal, Benjamin Busam, Nassir Navab, Slobodan Ilic, Peter Sturm
Based upon the idea of aligning the quadric gradients with the surface normals, our first formulation is exact and requires as low as four oriented points.
2 code implementations • CVPR 2019 • Yongheng Zhao, Tolga Birdal, Haowen Deng, Federico Tombari
In this paper, we propose 3D point-capsule networks, an auto-encoder designed to process sparse 3D point clouds while preserving spatial arrangements of the input data.
Ranked #4 on
3D Object Classification
on ModelNet40
no code implementations • ICCV 2019 • Fabian Manhardt, Diego Martin Arroyo, Christian Rupprecht, Benjamin Busam, Tolga Birdal, Nassir Navab, Federico Tombari
For each object instance we predict multiple pose and class outcomes to estimate the specific pose distribution generated by symmetries and repetitive textures.
no code implementations • 3D Vision 2018 2018 • Adrian Haarbach, Tolga Birdal, Slobodan Ilic
In this survey we carefully analyze the characteristics of higher order rigid body motion interpolation methods to obtain a continuous trajectory from a discrete set of poses.
2 code implementations • ECCV 2018 • Haowen Deng, Tolga Birdal, Slobodan Ilic
We present PPF-FoldNet for unsupervised learning of 3D local descriptors on pure point cloud geometry.
Ranked #12 on
Point Cloud Registration
on 3DMatch Benchmark
no code implementations • NeurIPS 2018 • Tolga Birdal, Umut Şimşekli, M. Onur Eken, Slobodan Ilic
We introduce Tempered Geodesic Markov Chain Monte Carlo (TG-MCMC) algorithm for initializing pose graph optimization problems, arising in various scenarios such as SFM (structure from motion) or SLAM (simultaneous localization and mapping).
no code implementations • CVPR 2018 • Tolga Birdal, Benjamin Busam, Nassir Navab, Slobodan Ilic, Peter Sturm
As opposed to state-of-the-art, where a tailored algorithm treats each primitive type separately, we propose to encapsulate all types in a single robust detection procedure.
1 code implementation • CVPR 2018 • Haowen Deng, Tolga Birdal, Slobodan Ilic
We present PPFNet - Point Pair Feature NETwork for deeply learning a globally informed 3D local feature descriptor to find correspondences in unorganized point clouds.
Ranked #14 on
Point Cloud Registration
on 3DMatch Benchmark
no code implementations • ICCV 2017 • Tolga Birdal, Slobodan Ilic
With aid of this prior acting as a proxy, we propose a fully enhanced pipeline, capable of automatically detecting and segmenting the object of interest from scenes and creating a pose graph, online, with linear complexity.
no code implementations • 24 Apr 2017 • Benjamin Busam, Tolga Birdal, Nassir Navab
Time-varying, smooth trajectory estimation is of great interest to the vision community for accurate and well behaving 3D systems.
no code implementations • 4 Mar 2014 • Tolga Birdal, Emrah Bala
Vectorization of images is a key concern uniting computer graphics and computer vision communities.