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Contrastive representation learning has proven to be an effective self-supervised learning method for images and videos. Most successful approaches are based on Noise Contrastive Estimation (NCE) and use different views of an instance as…

Computer Vision and Pattern Recognition · Computer Science 2023-09-27 Julien Denize , Jaonary Rabarisoa , Astrid Orcesi , Romain Hérault

We propose a method for semi-supervised semantic segmentation using an adversarial network. While most existing discriminators are trained to classify input images as real or fake on the image level, we design a discriminator in a fully…

Computer Vision and Pattern Recognition · Computer Science 2018-07-26 Wei-Chih Hung , Yi-Hsuan Tsai , Yan-Ting Liou , Yen-Yu Lin , Ming-Hsuan Yang

This study introduces an efficacious approach, Masked Collaborative Contrast (MCC), to highlight semantic regions in weakly supervised semantic segmentation. MCC adroitly draws inspiration from masked image modeling and contrastive learning…

Computer Vision and Pattern Recognition · Computer Science 2023-11-10 Fangwen Wu , Jingxuan He , Yufei Yin , Yanbin Hao , Gang Huang , Lechao Cheng

Semantic segmentation models struggle to generalize in the presence of domain shift. In this paper, we introduce contrastive learning for feature alignment in cross-domain adaptation. We assemble both in-domain contrastive pairs and…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Feihu Zhang , Vladlen Koltun , Philip Torr , René Ranftl , Stephan R. Richter

We propose a novel locally adaptive learning estimator for enhancing the inter- and intra- discriminative capabilities of Deep Neural Networks, which can be used as improved loss layer for semantic image segmentation tasks. Most loss layers…

Computer Vision and Pattern Recognition · Computer Science 2018-04-17 Jinjiang Guo , Pengyuan Ren , Aiguo Gu , Jian Xu , Weixin Wu

Exemplar-based image translation establishes dense correspondences between a conditional input and an exemplar (from two different domains) for leveraging detailed exemplar styles to achieve realistic image translation. Existing work builds…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Fangneng Zhan , Yingchen Yu , Rongliang Wu , Jiahui Zhang , Shijian Lu , Changgong Zhang

Copy detection, which is a task to determine whether an image is a modified copy of any image in a database, is an unsolved problem. Thus, we addressed copy detection by training convolutional neural networks (CNNs) with contrastive…

Computer Vision and Pattern Recognition · Computer Science 2021-12-09 Shuhei Yokoo

Deep convolutional neural networks (CNNs) have shown excellent performance in object recognition tasks and dense classification problems such as semantic segmentation. However, training deep neural networks on large and sparse datasets is…

Computer Vision and Pattern Recognition · Computer Science 2017-12-25 Lorenz Berger , Eoin Hyde , M. Jorge Cardoso , Sebastien Ourselin

In Computer Vision, self-supervised contrastive learning enforces similar representations between different views of the same image. The pre-training is most often performed on image classification datasets, like ImageNet, where images…

Computer Vision and Pattern Recognition · Computer Science 2023-10-31 Benjamin Missaoui , Chongbin Yuan

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

Computer Vision and Pattern Recognition · Computer Science 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Adversarial training has been shown to produce state of the art results for generative image modeling. In this paper we propose an adversarial training approach to train semantic segmentation models. We train a convolutional semantic…

Computer Vision and Pattern Recognition · Computer Science 2016-11-28 Pauline Luc , Camille Couprie , Soumith Chintala , Jakob Verbeek

Recently, patch-wise contrastive learning is drawing attention for the image translation by exploring the semantic correspondence between the input and output images. To further explore the patch-wise topology for high-level semantic…

Computer Vision and Pattern Recognition · Computer Science 2024-02-21 Chanyong Jung , Gihyun Kwon , Jong Chul Ye

We explore design principles for general pixel-level prediction problems, from low-level edge detection to mid-level surface normal estimation to high-level semantic segmentation. Convolutional predictors, such as the fully-convolutional…

Computer Vision and Pattern Recognition · Computer Science 2017-02-27 Aayush Bansal , Xinlei Chen , Bryan Russell , Abhinav Gupta , Deva Ramanan

An effective framework for learning 3D representations for perception tasks is distilling rich self-supervised image features via contrastive learning. However, image-to point representation learning for autonomous driving datasets faces…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Anas Mahmoud , Jordan S. K. Hu , Tianshu Kuai , Ali Harakeh , Liam Paull , Steven L. Waslander

Accurate segmentation of retinal fluids in 3D Optical Coherence Tomography images is key for diagnosis and personalized treatment of eye diseases. While deep learning has been successful at this task, trained supervised models often fail…

Computer Vision and Pattern Recognition · Computer Science 2022-08-05 Alvaro Gomariz , Huanxiang Lu , Yun Yvonna Li , Thomas Albrecht , Andreas Maunz , Fethallah Benmansour , Alessandra M. Valcarcel , Jennifer Luu , Daniela Ferrara , Orcun Goksel

The learning objective of vision-language approach of CLIP does not effectively account for the noisy many-to-many correspondences found in web-harvested image captioning datasets, which contributes to its compute and data inefficiency. To…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Alex Andonian , Shixing Chen , Raffay Hamid

Recent works have advanced the performance of self-supervised representation learning by a large margin. The core among these methods is intra-image invariance learning. Two different transformations of one image instance are considered as…

Computer Vision and Pattern Recognition · Computer Science 2021-05-14 Haiping Wu , Xiaolong Wang

A prominent technique for self-supervised representation learning has been to contrast semantically similar and dissimilar pairs of samples. Without access to labels, dissimilar (negative) points are typically taken to be randomly sampled…

Machine Learning · Computer Science 2020-10-22 Ching-Yao Chuang , Joshua Robinson , Lin Yen-Chen , Antonio Torralba , Stefanie Jegelka

Deep learning algorithms have recently achieved promising deraining performances on both the natural and synthetic rainy datasets. As an essential low-level pre-processing stage, a deraining network should clear the rain streaks and…

Computer Vision and Pattern Recognition · Computer Science 2021-11-29 Shen Zheng , Changjie Lu , Yuxiong Wu , Gaurav Gupta

Unsupervised learning has recently made exceptional progress because of the development of more effective contrastive learning methods. However, CNNs are prone to depend on low-level features that humans deem non-semantic. This dependency…

Computer Vision and Pattern Recognition · Computer Science 2022-01-04 Songwei Ge , Shlok Mishra , Haohan Wang , Chun-Liang Li , David Jacobs