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Weakly supervised semantic segmentation with only image-level labels aims to reduce annotation costs for the segmentation task. Existing approaches generally leverage class activation maps (CAMs) to locate the object regions for pseudo…

计算机视觉与模式识别 · 计算机科学 2022-06-22 Tao Chen , Yazhou Yao , Lei Zhang , Qiong Wang , Guo-Sen Xie , Fumin Shen

In recent years, weakly supervised models have aided in mass detection using mammography images, decreasing the need for pixel-level annotations. However, most existing models in the literature rely on Class Activation Maps (CAM) as the…

计算机视觉与模式识别 · 计算机科学 2023-08-08 Vicente Sampaio , Filipe R. Cordeiro

The need for Explainable AI is increasing with the development of deep learning. The saliency maps derived from convolutional neural networks generally fail in localizing with accuracy the image features justifying the network prediction.…

计算机视觉与模式识别 · 计算机科学 2022-05-09 Alexandre Englebert , Olivier Cornu , Christophe De Vleeschouwer

Automatic lesion segmentation on thoracic CT enables rapid quantitative analysis of lung involvement in COVID-19 infections. However, obtaining a large amount of voxel-level annotations for training segmentation networks is prohibitively…

图像与视频处理 · 电气工程与系统科学 2021-11-22 Weiyi Xie , Colin Jacobs , Jean-Paul Charbonnier , Bram van Ginneken

Obtaining object response maps is one important step to achieve weakly-supervised semantic segmentation using image-level labels. However, existing methods rely on the classification task, which could result in a response map only attending…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Yu-Ting Chang , Qiaosong Wang , Wei-Chih Hung , Robinson Piramuthu , Yi-Hsuan Tsai , Ming-Hsuan Yang

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…

计算机视觉与模式识别 · 计算机科学 2024-05-13 Elham Ravanbakhsh , Cheng Niu , Yongqing Liang , J. Ramanujam , Xin Li

The black-box nature of Deep Neural Networks (DNNs) severely hinders its performance improvement and application in specific scenes. In recent years, class activation mapping-based method has been widely used to interpret the internal…

计算机视觉与模式识别 · 计算机科学 2022-07-11 Chunyan Zeng , Kang Yan , Zhifeng Wang , Yan Yu , Shiyan Xia , Nan Zhao

Decisions made by convolutional neural networks(CNN) can be understood and explained by visualizing discriminative regions on images. To this end, Class Activation Map (CAM) based methods were proposed as powerful interpretation tools,…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Yi Liao , Yongsheng Gao , Weichuan Zhang

This study presents a comparative analysis of two objective functions, Mean Squared Error (MSE) and Softmax Cross-Entropy (SCE) for neural network classification tasks. While SCE combined with softmax activation is the conventional choice…

Accurate lesion classification in Wireless Capsule Endoscopy (WCE) images is vital for early diagnosis and treatment of gastrointestinal (GI) cancers. However, this task is confronted with challenges like tiny lesions and background…

计算机视觉与模式识别 · 计算机科学 2024-01-12 Kunpeng Qiu , Zhiying Zhou , Yongxin Guo

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…

计算机视觉与模式识别 · 计算机科学 2021-10-14 Jungbeom Lee , Jooyoung Choi , Jisoo Mok , Sungroh Yoon

Weakly Supervised Semantic Segmentation (WSSS) with image-level labels typically leverages Class Activation Maps (CAMs) to achieve pixel-level predictions. Recently, Contrastive Language-Image Pre-training (CLIP) has been introduced to…

计算机视觉与模式识别 · 计算机科学 2026-05-07 Zhiwei Yang , Pengfei Song , Yucong Meng , Kexue Fu , Shuo Wang , Zhijian Song

Interactive segmentation models such as the Segment Anything Model (SAM) have demonstrated remarkable generalization on natural images, but they perform suboptimally on remote sensing imagery (RSI) due to severe domain shifts and the…

计算机视觉与模式识别 · 计算机科学 2026-03-31 M. Naseer Subhani

Class Activation Mapping (CAM) and its extensions have become indispensable tools for visualizing the evidence behind deep network predictions. However, by relying on a final softmax classifier, these methods suffer from two fundamental…

计算机视觉与模式识别 · 计算机科学 2025-11-11 Yoojin Oh , Junhyug Noh

In recent years, several Weakly Supervised Semantic Segmentation (WS3) methods have been proposed that use class activation maps (CAMs) generated by a classifier to produce pseudo-ground truths for training segmentation models. While CAMs…

计算机视觉与模式识别 · 计算机科学 2023-08-23 M. Maruf , Arka Daw , Amartya Dutta , Jie Bu , Anuj Karpatne

Existing studies in weakly-supervised semantic segmentation (WSSS) using image-level weak supervision have several limitations: sparse object coverage, inaccurate object boundaries, and co-occurring pixels from non-target objects. To…

计算机视觉与模式识别 · 计算机科学 2021-05-20 Seungho Lee , Minhyun Lee , Jongwuk Lee , Hyunjung Shim

Weakly-supervised semantic segmentation (WSSS) with image-level labels has been widely studied to relieve the annotation burden of the traditional segmentation task. In this paper, we show that existing fully-annotated base categories can…

计算机视觉与模式识别 · 计算机科学 2022-10-18 Siyuan Zhou , Li Niu , Jianlou Si , Chen Qian , Liqing Zhang

Weakly Supervised Object Localization (WSOL) methodsusually rely on fully convolutional networks in order to ob-tain class activation maps(CAMs) of targeted labels. How-ever, these networks always highlight the most discriminativeparts to…

计算机视觉与模式识别 · 计算机科学 2019-09-12 Ziyi Kou , Wentian Zhao , Guofeng Cui , Shaojie Wang

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…

计算机视觉与模式识别 · 计算机科学 2021-03-17 Jungbeom Lee , Jihun Yi , Chaehun Shin , Sungroh Yoon

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…

图像与视频处理 · 电气工程与系统科学 2024-04-23 Marius Schmidt-Mengin , Alexis Benichoux , Shibeshih Belachew , Nikos Komodakis , Nikos Paragios