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Image-level weakly supervised semantic segmentation (WSSS) is a fundamental yet challenging computer vision task facilitating scene understanding and automatic driving. Most existing methods resort to classification-based Class Activation…

Computer Vision and Pattern Recognition · Computer Science 2021-12-17 Jie Qin , Jie Wu , Xuefeng Xiao , Lujun Li , Xingang Wang

For best performance, today's semantic segmentation methods use large and carefully labeled datasets, requiring expensive annotation budgets. In this work, we show that coarse annotation is a low-cost but highly effective alternative for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

Referring image segmentation aims to produce a pixel-level mask for the image region described by a natural-language expression. Although pretrained vision-language models have improved semantic grounding, many existing methods still rely…

Computer Vision and Pattern Recognition · Computer Science 2026-03-16 Alaa Dalaq , Muzammil Behzad

Deep-learning-based approaches for retinal lesion segmentation often require an abundant amount of precise pixel-wise annotated data. However, coarse annotations such as circles or ellipses for outlining the lesion area can be six times…

Computer Vision and Pattern Recognition · Computer Science 2022-08-31 Qinji Yu , Kang Dang , Ziyu Zhou , Yongwei Chen , Xiaowei Ding

Recent advancements in deep learning-based interactive segmentation methods have significantly improved pathology image segmentation. Most existing approaches utilize user-provided positive and negative clicks to guide the segmentation…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Tiantong Wang , Minfan Zhao , Jun Shi , Hannan Wang , Yue Dai

Image segmentation, one of the most critical vision tasks, has been studied for many years. Most of the early algorithms are unsupervised methods, which use hand-crafted features to divide the image into many regions. Recently, owing to the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Qinghong Lin , Weichan Zhong , Jianglin Lu

Deep learning has successfully been leveraged for medical image segmentation. It employs convolutional neural networks (CNN) to learn distinctive image features from a defined pixel-wise objective function. However, this approach can lead…

Image and Video Processing · Electrical Eng. & Systems 2021-03-05 Kibrom Berihu Girum , Gilles Créhange , Alain Lalande

Parts provide a good intermediate representation of objects that is robust with respect to the camera, pose and appearance variations. Existing works on part segmentation is dominated by supervised approaches that rely on large amounts of…

Computer Vision and Pattern Recognition · Computer Science 2019-05-06 Wei-Chih Hung , Varun Jampani , Sifei Liu , Pavlo Molchanov , Ming-Hsuan Yang , Jan Kautz

Molecule optimization is about generating molecule $Y$ with more desirable properties based on an input molecule $X$. The state-of-the-art approaches partition the molecules into a large set of substructures $S$ and grow the new molecule…

Machine Learning · Computer Science 2019-12-13 Tianfan Fu , Cao Xiao , Jimeng Sun

Weakly supervised semantic segmentation (WSSS) aims to produce pixel-wise class predictions with only image-level labels for training. To this end, previous methods adopt the common pipeline: they generate pseudo masks from class activation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-09 Sungpil Kho , Pilhyeon Lee , Wonyoung Lee , Minsong Ki , Hyeran Byun

Segmentation of tumors in brain MRI images is a challenging task, where most recent methods demand large volumes of data with pixel-level annotations, which are generally costly to obtain. In contrast, image-level annotations, where only…

Image and Video Processing · Electrical Eng. & Systems 2019-11-07 Sergey Pavlov , Alexey Artemov , Maksim Sharaev , Alexander Bernstein , Evgeny Burnaev

Assessing the quality of automatic image segmentation is crucial in clinical practice, but often very challenging due to the limited availability of ground truth annotations. Reverse Classification Accuracy (RCA) is an approach that…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Matias Cosarinsky , Ramiro Billot , Lucas Mansilla , Gabriel Jimenez , Nicolas Gaggión , Guanghui Fu , Tom Tirer , Enzo Ferrante

In this paper, we propose sparse coding-based approaches for segmentation of tumor regions from MR images. Sparse coding with data-adapted dictionaries has been successfully employed in several image recovery and vision problems. The…

Computer Vision and Pattern Recognition · Computer Science 2013-03-12 Jayaraman J. Thiagarajan , Karthikeyan Natesan Ramamurthy , Deepta Rajan , Anup Puri , David Frakes , Andreas Spanias

Segmentation of nanoscale electron microscopy (EM) images is crucial but still challenging in connectomics research. One reason for this is that none of the existing segmentation methods are error-free, so they require proofreading, which…

Computer Vision and Pattern Recognition · Computer Science 2022-03-14 Khoa Tuan Nguyen , Ganghee Jang , Tran Anh Tuan , Won-ki Jeong

Annotating lots of 3D medical images for training segmentation models is time-consuming. The goal of weakly supervised semantic segmentation is to train segmentation models without using any ground truth segmentation masks. Our work…

Image and Video Processing · Electrical Eng. & Systems 2024-04-23 Marius Schmidt-Mengin , Alexis Benichoux , Shibeshih Belachew , Nikos Komodakis , Nikos Paragios

In the recent years, convolutional neural networks have transformed the field of medical image analysis due to their capacity to learn discriminative image features for a variety of classification and regression tasks. However, successfully…

Computer Vision and Pattern Recognition · Computer Science 2019-07-08 Wenjia Bai , Chen Chen , Giacomo Tarroni , Jinming Duan , Florian Guitton , Steffen E. Petersen , Yike Guo , Paul M. Matthews , Daniel Rueckert

Medical image segmentation plays a crucial role in clinical workflows, but domain shift often leads to performance degradation when models are applied to unseen clinical domains. This challenge arises due to variations in imaging…

Computer Vision and Pattern Recognition · Computer Science 2025-08-01 Yingkai Wang , Yaoyao Zhu , Xiuding Cai , Yuhao Xiao , Haotian Wu , Yu Yao

We present a refinement framework to boost the performance of pre-trained semi-supervised video object segmentation (VOS) models. Our work is based on scale inconsistency, which is motivated by the observation that existing VOS models…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Hengyi Wang , Changjae Oh

Low-Rank Adaptation (LoRA) improves downstream performance by restricting task updates to a low-rank parameter subspace, yet how this limited capacity is allocated within a trained adapter remains unclear. Through a geometric and empirical…

Machine Learning · Computer Science 2026-03-05 Zailong Tian , Yanzhe Chen , Zhuoheng Han , Lizi Liao

Autonomous robotic systems applied to new domains require an abundance of expensive, pixel-level dense labels to train robust semantic segmentation models under full supervision. This study proposes a model-agnostic Depth Edge Alignment…

Computer Vision and Pattern Recognition · Computer Science 2026-01-16 Patrick Schmidt , Vasileios Belagiannis , Lazaros Nalpantidis