no code implementations • 15 Apr 2024 • Shakiba Kheradmand, Daniel Rebain, Gopal Sharma, Weiwei Sun, Jeff Tseng, Hossam Isack, Abhishek Kar, Andrea Tagliasacchi, Kwang Moo Yi
While 3D Gaussian Splatting has recently become popular for neural rendering, current methods rely on carefully engineered cloning and splitting strategies for placing Gaussians, which does not always generalize and may lead to poor-quality renderings.
no code implementations • 29 Nov 2023 • Shakiba Kheradmand, Daniel Rebain, Gopal Sharma, Hossam Isack, Abhishek Kar, Andrea Tagliasacchi, Kwang Moo Yi
We present an approach to accelerate Neural Field training by efficiently selecting sampling locations.
1 code implementation • 29 Nov 2023 • Eric Hedlin, Gopal Sharma, Shweta Mahajan, Xingzhe He, Hossam Isack, Abhishek Kar Helge Rhodin, Andrea Tagliasacchi, Kwang Moo Yi
Unsupervised learning of keypoints and landmarks has seen significant progress with the help of modern neural network architectures, but performance is yet to match the supervised counterpart, making their practicability questionable.
Ranked #1 on Unsupervised Human Pose Estimation on Tai-Chi-HD
1 code implementation • NeurIPS 2023 • Eric Hedlin, Gopal Sharma, Shweta Mahajan, Hossam Isack, Abhishek Kar, Andrea Tagliasacchi, Kwang Moo Yi
Text-to-image diffusion models are now capable of generating images that are often indistinguishable from real images.
Ranked #1 on Semantic correspondence on PF-WILLOW
no code implementations • 10 Feb 2020 • Hossam Isack, Christian Haene, Cem Keskin, Sofien Bouaziz, Yuri Boykov, Shahram Izadi, Sameh Khamis
At the coarsest resolution, and in a manner similar to classical part-based approaches, we leverage the kinematic structure of the human body to propagate convolutional feature updates between the keypoints or body parts.
no code implementations • ECCV 2018 • Hossam Isack, Lena Gorelick, Karin Ng, Olga Veksler, Yuri Boykov
As shown in the paper, for many forms of convexity our regularization model is significantly more descriptive for any given k. Our shape prior is useful in practice, e. g. in biomedical applications, and its optimization is robust to local minima.
no code implementations • CVPR 2017 • Hossam Isack, Olga Veksler, Ipek Oguz, Milan Sonka, Yuri Boykov
We propose an effective optimization algorithm for a general hierarchical segmentation model with geometric interactions between segments.
no code implementations • CVPR 2016 • Hossam Isack, Olga Veksler, Milan Sonka, Yuri Boykov
In contrast to star-convexity, the tightness of our normal constraint can be changed giving better control over allowed shapes.
no code implementations • 2 Feb 2016 • Hossam Isack, Yuri Boykov, Olga Veksler
A single click and +/-90 degrees normal orientation constraints reduce our hedgehog prior to star-convexity.
no code implementations • ICCV 2015 • Yuri Boykov, Hossam Isack, Carl Olsson, Ismail Ben Ayed
Many standard optimization methods for segmentation and reconstruction compute ML model estimates for appearance or geometry of segments, e. g. Zhu-Yuille 1996, Torr 1998, Chan-Vese 2001, GrabCut 2004, Delong et al. 2012.
no code implementations • CVPR 2014 • Hossam Isack, Yuri Boykov
Standard geometric model fitting methods take as an input a fixed set of feature pairs greedily matched based only on their appearances.
no code implementations • 11 Mar 2013 • Hossam Isack, Yuri Boykov
In contrast, we solve feature matching and multi-model fitting problems in a joint optimization framework.