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Recently, several weakly supervised learning methods have been devoted to utilize bounding box supervision for training deep semantic segmentation models. Most existing methods usually leverage the generic proposal generators (e.g., dense…

Computer Vision and Pattern Recognition · Computer Science 2022-03-03 Chaohao Xie , Dongwei Ren , Lei Wang , Wangmeng Zuo

Weakly Supervised Semantic Segmentation (WSSS) addresses the challenge of training segmentation models using only image-level annotations. Existing WSSS methods struggle with precise object boundary localization and focus only on the most…

Computer Vision and Pattern Recognition · Computer Science 2025-11-21 Ali Torabi , Sanjog Gaihre , MD Mahbubur Rahman , Yaqoob Majeed

It has been widely known that CAM (Class Activation Map) usually only activates discriminative object regions and falsely includes lots of object-related backgrounds. As only a fixed set of image-level object labels are available to the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-28 Jinheng Xie , Xianxu Hou , Kai Ye , Linlin Shen

Weakly supervised semantic segmentation produces pixel-level localization from class labels; however, a classifier trained on such labels is likely to focus on a small discriminative region of the target object. We interpret this phenomenon…

Computer Vision and Pattern Recognition · Computer Science 2021-10-14 Jungbeom Lee , Jooyoung Choi , Jisoo Mok , Sungroh Yoon

Segmenting and recognizing diverse object parts is crucial in computer vision and robotics. Despite significant progress in object segmentation, part-level segmentation remains underexplored due to complex boundaries and scarce annotated…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Xinjian Wu , Ruisong Zhang , Jie Qin , Shijie Ma , Cheng-Lin Liu

In this work, we focus on the task of weakly supervised affordance grounding, where a model is trained to identify affordance regions on objects using human-object interaction images and egocentric object images without dense labels.…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Peiran Xu , Yadong Mu

Weakly supervised object localization aims to find a target object region in a given image with only weak supervision, such as image-level labels. Most existing methods use a class activation map (CAM) to generate a localization map;…

Computer Vision and Pattern Recognition · Computer Science 2022-04-04 Eunji Kim , Siwon Kim , Jungbeom Lee , Hyunwoo Kim , Sungroh Yoon

Compared with expensive pixel-wise annotations, image-level labels make it possible to learn semantic segmentation in a weakly-supervised manner. Within this pipeline, the class activation map (CAM) is obtained and further processed to…

Computer Vision and Pattern Recognition · Computer Science 2022-01-06 Jiawei Liu , Jing Zhang , Yicong Hong , Nick Barnes

Image-level weakly supervised semantic segmentation (WSSS) relies on class activation maps (CAMs) for pseudo labels generation. As CAMs only highlight the most discriminative regions of objects, the generated pseudo labels are usually…

Computer Vision and Pattern Recognition · Computer Science 2021-10-28 Weixuan Sun , Jing Zhang , Nick Barnes

Semantic segmentation is a core computer vision problem, but the high costs of data annotation have hindered its wide application. Weakly-Supervised Semantic Segmentation (WSSS) offers a cost-efficient workaround to extensive labeling in…

Computer Vision and Pattern Recognition · Computer Science 2024-05-13 Elham Ravanbakhsh , Cheng Niu , Yongqing Liang , J. Ramanujam , Xin Li

We propose Foreground-Covering Prototype Generation and Matching to resolve Few-Shot Segmentation (FSS), which aims to segment target regions in unlabeled query images based on labeled support images. Unlike previous research, which…

Computer Vision and Pattern Recognition · Computer Science 2025-01-03 Suho Park , SuBeen Lee , Hyun Seok Seong , Jaejoon Yoo , Jae-Pil Heo

Weakly-supervised semantic segmentation (WSSS) has recently gained much attention for its promise to train segmentation models only with image-level labels. Existing WSSS methods commonly argue that the sparse coverage of CAM incurs the…

Computer Vision and Pattern Recognition · Computer Science 2022-03-31 Minhyun Lee , Dongseob Kim , Hyunjung Shim

Weakly supervised semantic segmentation aims to achieve pixel-level predictions using image-level labels. Existing methods typically entangle semantic recognition and object localization, which often leads models to focus exclusively on…

Computer Vision and Pattern Recognition · Computer Science 2026-04-17 Qingze He , Fagui Liu , Dengke Zhang , Qingmao Wei , Quan Tang

Object localization is an important computer vision problem with a variety of applications. The lack of large scale object-level annotations and the relative abundance of image-level labels makes a compelling case for weak supervision in…

Computer Vision and Pattern Recognition · Computer Science 2016-03-30 Archith J. Bency , Heesung Kwon , Hyungtae Lee , S. Karthikeyan , B. S. Manjunath

Learning from weakly-supervised data is one of the main challenges in machine learning and computer vision, especially for tasks such as image semantic segmentation where labeling is extremely expensive and subjective. In this paper, we…

Computer Vision and Pattern Recognition · Computer Science 2016-12-09 Xianming Liu , Amy Zhang , Tobias Tiecke , Andreas Gros , Thomas S. Huang

Existing weakly-supervised semantic segmentation methods using image-level annotations typically rely on initial responses to locate object regions. However, such response maps generated by the classification network usually focus on…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Yu-Ting Chang , Qiaosong Wang , Wei-Chih Hung , Robinson Piramuthu , Yi-Hsuan Tsai , Ming-Hsuan Yang

We describe a latent approach that learns to detect actions in long sequences given training videos with only whole-video class labels. Our approach makes use of two innovations to attention-modeling in weakly-supervised learning. First,…

Computer Vision and Pattern Recognition · Computer Science 2019-08-20 Phuc Xuan Nguyen , Deva Ramanan , Charless C. Fowlkes

Weakly supervised object localization (WSOL) aims to localize objects by only utilizing image-level labels. Class activation maps (CAMs) are the commonly used features to achieve WSOL. However, previous CAM-based methods did not take full…

Computer Vision and Pattern Recognition · Computer Science 2021-08-03 Jun Wei , Qin Wang , Zhen Li , Sheng Wang , S. Kevin Zhou , Shuguang Cui

Foreground segmentation is an essential task in the field of image understanding. Under unsupervised conditions, different images and instances always have variable expressions, which make it difficult to achieve stable segmentation…

Computer Vision and Pattern Recognition · Computer Science 2020-05-22 Xi Li , Huimin Ma , Hongbing Ma , Yidong Wang

Weakly supervised object detection aims at learning precise object detectors, given image category labels. In recent prevailing works, this problem is generally formulated as a multiple instance learning module guided by an image…

Computer Vision and Pattern Recognition · Computer Science 2019-04-02 Xiaoyan Li , Meina Kan , Shiguang Shan , Xilin Chen