1 code implementation • ECCV 2020 • Olga Veksler
We propose a new weakly supervised method for training CNNs to segment an object of a single class of interest.
no code implementations • CVPR 2023 • Olga Veksler
Regularized loss tends to have lower values for the more likely object segments, and thus it can be used to fine-tune an already trained CNN to a given test image, adapting to images unseen during training.
no code implementations • CVPR 2022 • Olga Veksler, Yuri Boykov
We propose a new sparse non-local CRF: it has a sparse number of connections, but it has both local and non-local ones.
no code implementations • 6 May 2019 • Lena Gorelick, Olga Veksler
After our CRF Simulator is trained, it can be directly incorporated as part of any larger CNN architecture, enabling a seamless end-to-end training.
no code implementations • 13 Sep 2018 • Olga Veksler
Previous work develops efficient approximate optimization based on mean field inference, which is a local optimization method and can be far from the optimum.
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 • 18 Jul 2018 • Zhenyi Wang, Olga Veksler
For example, a salient object is more likely to be closer to the center of the image, the sky in the top part of an image, etc.
no code implementations • CVPR 2017 • Lena Gorelick, Yuri Boykov, Olga Veksler
First, unlike LSA-AUX which selects auxiliary functions based solely on the current solution, we propose to incorporate several additional criteria.
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 • Ekaterina Lobacheva, Olga Veksler, Yuri Boykov
We propose to make clustering an integral part of segmentation, by including a new clustering term in the energy function.
no code implementations • CVPR 2015 • Olga Veksler
Although this is not as good as the factor of 2 approximation of the well known expansion algorithm, we achieve very good results in practice.
no code implementations • CVPR 2014 • Lena Gorelick, Yuri Boykov, Olga Veksler, Ismail Ben Ayed, Andrew Delong
We propose a general optimization framework based on local submodular approximations (LSA).
no code implementations • CVPR 2014 • Claudia Nieuwenhuis, Eno Toeppe, Lena Gorelick, Olga Veksler, Yuri Boykov
Curvature has received increasing attention as an important alternative to length based regularization in computer vision.
no code implementations • 8 Nov 2013 • Lena Gorelick, Yuri Boykov, Olga Veksler, Ismail Ben Ayed, Andrew Delong
We propose a general optimization framework based on local submodular approximations (LSA).
no code implementations • 7 Nov 2013 • Claudia Nieuwenhuis, Eno Toeppe, Lena Gorelick, Olga Veksler, Yuri Boykov
Curvature has received increased attention as an important alternative to length based regularization in computer vision.
no code implementations • NeurIPS 2012 • Andrew Delong, Olga Veksler, Anton Osokin, Yuri Boykov
Inference on high-order graphical models has become increasingly important in recent years.