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Semi-supervised semantic segmentation (SSSS) aims to improve segmentation performance by utilizing large amounts of unlabeled data with limited labeled samples. Existing methods often suffer from coupling, where over-reliance on initial…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Ebenezer Tarubinga , Jenifer Kalafatovich , Seong-Whan Lee

Self-supervised vision transformers (SSTs) have shown great potential to yield rich localization maps that highlight different objects in an image. However, these maps remain class-agnostic since the model is unsupervised. They often tend…

Computer Vision and Pattern Recognition · Computer Science 2023-10-20 Shakeeb Murtaza , Soufiane Belharbi , Marco Pedersoli , Aydin Sarraf , Eric Granger

Class activation mapping~(CAM), a visualization technique for interpreting deep learning models, is now commonly used for weakly supervised semantic segmentation~(WSSS) and object localization~(WSOL). It is the weighted aggregation of the…

Computer Vision and Pattern Recognition · Computer Science 2023-09-08 Jiatai Lin , Guoqiang Han , Xuemiao Xu , Changhong Liang , Tien-Tsin Wong , C. L. Philip Chen , Zaiyi Liu , Chu Han

Weakly-Supervised Concealed Object Segmentation (WSCOS) aims to segment objects well blended with surrounding environments using sparsely-annotated data for model training. It remains a challenging task since (1) it is hard to distinguish…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Chunming He , Kai Li , Yachao Zhang , Guoxia Xu , Longxiang Tang , Yulun Zhang , Zhenhua Guo , Xiu Li

Semantic segmentation requires dense pixel-level annotations, which are costly and time-consuming to acquire. To address this, we present SeSAM, a framework that uses a foundational segmentation model, i.e. Segment Anything Model (SAM),…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Anurag Das , Anna Kukleva , Xinting Hu , Yuki M. Asano , Bernt Schiele

Weakly supervised object localization and semantic segmentation aim to localize objects using only image-level labels. Recently, a new paradigm has emerged by generating a foreground prediction map (FPM) to achieve pixel-level localization.…

Computer Vision and Pattern Recognition · Computer Science 2023-09-25 Wei Zhai , Pingyu Wu , Kai Zhu , Yang Cao , Feng Wu , Zheng-Jun Zha

Pixel-level annotations are expensive and time consuming to obtain. Hence, weak supervision using only image tags could have a significant impact in semantic segmentation. Recently, CNN-based methods have proposed to fine-tune pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Fatemehsadat Saleh , Mohammad Sadegh Ali Akbarian , Mathieu Salzmann , Lars Petersson , Stephen Gould , Jose M. Alvarez

Surface cracks are a common sight on public infrastructure nowadays. Recent work has been addressing this problem by supporting structural maintenance measures using machine learning methods. Those methods are used to segment surface cracks…

Computer Vision and Pattern Recognition · Computer Science 2024-10-28 Jacob König , Mark Jenkins , Mike Mannion , Peter Barrie , Gordon Morison

Weakly Supervised Object Localization (WSOL) aims to localize objects with image-level supervision. Existing works mainly rely on Class Activation Mapping (CAM) derived from a classification model. However, CAM-based methods usually focus…

Computer Vision and Pattern Recognition · Computer Science 2022-05-30 Jilan Xu , Junlin Hou , Yuejie Zhang , Rui Feng , Rui-Wei Zhao , Tao Zhang , Xuequan Lu , Shang Gao

Weakly supervised segmentation methods using bounding box annotations focus on obtaining a pixel-level mask from each box containing an object. Existing methods typically depend on a class-agnostic mask generator, which operates on the…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Jungbeom Lee , Jihun Yi , Chaehun Shin , Sungroh Yoon

Weakly-supervised semantic segmentation (WSSS) performs pixel-wise classification given only image-level labels for training. Despite the difficulty of this task, the research community has achieved promising results over the last five…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Cheolhyun Mun , Sanghuk Lee , Youngjung Uh , Junsuk Choe , Hyeran Byun

While class activation map (CAM) generated by image classification network has been widely used for weakly supervised object localization (WSOL) and semantic segmentation (WSSS), such classifiers usually focus on discriminative object…

Computer Vision and Pattern Recognition · Computer Science 2022-12-23 Jinheng Xie , Jianfeng Xiang , Junliang Chen , Xianxu Hou , Xiaodong Zhao , Linlin Shen

Most existing weakly supervised semantic segmentation (WSSS) methods rely on Class Activation Mapping (CAM) to extract coarse class-specific localization maps using image-level labels. Prior works have commonly used an off-line heuristic…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Lian Xu , Mohammed Bennamoun , Farid Boussaid , Wanli Ouyang , Ferdous Sohel , Dan Xu

In this work, we propose a new transformer-based regularization to better localize objects for Weakly supervised semantic segmentation (WSSS). In image-level WSSS, Class Activation Map (CAM) is adopted to generate object localization as…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Weixuan Sun , Yanhao Zhang , Zhen Qin , Zheyuan Liu , Lin Cheng , Fanyi Wang , Yiran Zhong , Nick Barnes

Weakly supervised methods, such as class activation maps (CAM) based, have been applied to achieve bleeding segmentation with low annotation efforts in Wireless Capsule Endoscopy (WCE) images. However, the CAM labels tend to be extremely…

Computer Vision and Pattern Recognition · Computer Science 2023-08-11 Fan Bai , Xiaohan Xing , Yutian Shen , Han Ma , Max Q. -H. Meng

We present a novel confidence refinement scheme that enhances pseudo labels in semi-supervised semantic segmentation. Unlike existing methods, which filter pixels with low-confidence predictions in isolation, our approach leverages the…

Computer Vision and Pattern Recognition · Computer Science 2024-07-04 Moshe Kimhi , Shai Kimhi , Evgenii Zheltonozhskii , Or Litany , Chaim Baskin

Weakly Supervised Semantic Segmentation (WSSS) research has explored many directions to improve the typical pipeline CNN plus class activation maps (CAM) plus refinements, given the image-class label as the only supervision. Though the gap…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Simone Rossetti , Damiano Zappia , Marta Sanzari , Marco Schaerf , Fiora Pirri

Though image-level weakly supervised semantic segmentation (WSSS) has achieved great progress with Class Activation Maps (CAMs) as the cornerstone, the large supervision gap between classification and segmentation still hampers the model to…

Computer Vision and Pattern Recognition · Computer Science 2022-03-15 Ye Du , Zehua Fu , Qingjie Liu , Yunhong Wang

Weakly supervised learning has emerged as an appealing alternative to alleviate the need for large labeled datasets in semantic segmentation. Most current approaches exploit class activation maps (CAMs), which can be generated from…

Computer Vision and Pattern Recognition · Computer Science 2022-01-17 Gaurav Patel , Jose Dolz

Obtaining accurate pixel-level localization from class labels is a crucial process in weakly supervised semantic segmentation and object localization. Attribution maps from a trained classifier are widely used to provide pixel-level…

Computer Vision and Pattern Recognition · Computer Science 2022-04-12 Jungbeom Lee , Eunji Kim , Jisoo Mok , Sungroh Yoon