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Multiple instance learning (MIL) is a supervised learning methodology that aims to allow models to learn instance class labels from bag class labels, where a bag is defined to contain multiple instances. MIL is gaining traction for learning…

Computer Vision and Pattern Recognition · Computer Science 2019-11-14 Samuel W. Remedios , Zihao Wu , Camilo Bermudez , Cailey I. Kerley , Snehashis Roy , Mayur B. Patel , John A. Butman , Bennett A. Landman , Dzung L. Pham

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

The vast majority of semantic segmentation approaches rely on pixel-level annotations that are tedious and time consuming to obtain and suffer from significant inter and intra-expert variability. To address these issues, recent approaches…

Segmenting tumors in histological images is vital for cancer diagnosis. While fully supervised models excel with pixel-level annotations, creating such annotations is labor-intensive and costly. Accurate histopathology image segmentation…

Computer Vision and Pattern Recognition · Computer Science 2024-07-16 Yinsheng He , Xingyu Li , Roger J. Zemp

Histopathology image analysis can be considered as a Multiple instance learning (MIL) problem, where the whole slide histopathology image (WSI) is regarded as a bag of instances (i.e, patches) and the task is to predict a single class label…

Computer Vision and Pattern Recognition · Computer Science 2019-06-28 Meng Li , Lin Wu , Arnold Wiliem , Kun Zhao , Teng Zhang , Brian C. Lovell

The subject of this paper is optimisation of weak lensing tomography: We carry out numerical minimisation of a measure of total statistical error as a function of the redshifts of the tomographic bin edges by means of a Nelder-Mead…

Cosmology and Nongalactic Astrophysics · Physics 2023-02-21 Marvin Sipp , Bjoern Malte Schaefer , Robert Reischke

Multiple Instance Learning is the predominant method for Whole Slide Image classification in digital pathology, enabling the use of slide-level labels to supervise model training. Although MIL eliminates the tedious fine-grained annotation…

Computer Vision and Pattern Recognition · Computer Science 2025-05-28 Chen Shu , Boyu Fu , Yiman Li , Ting Yin , Wenchuan Zhang , Jie Chen , Yuhao Yi , Hong Bu

High-quality Late Gadolinium Enhancement (LGE) MRI can be helpful for atrial fibrillation management, yet scan quality is frequently compromised by patient motion, irregular breathing, and suboptimal image acquisition timing. While Multiple…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 K M Arefeen Sultan , Kaysen Hansen , Benjamin Orkild , Alan Morris , Eugene Kholmovski , Erik Bieging , Eugene Kwan , Ravi Ranjan , Ed DiBella , Shireen Elhabian

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

Most image segmentation algorithms are trained on binary masks formulated as a classification task per pixel. However, in applications such as medical imaging, this "black-and-white" approach is too constraining because the contrast between…

Image and Video Processing · Electrical Eng. & Systems 2020-11-19 Charley Gros , Andreanne Lemay , Julien Cohen-Adad

Weakly supervised instance segmentation (WSIS) using only image-level labels is a challenging task due to the difficulty of aligning coarse annotations with the finer task. However, with the advancement of deep neural networks (DNNs), WSIS…

Computer Vision and Pattern Recognition · Computer Science 2024-02-13 Zecheng Li , Zening Zeng , Yuqi Liang , Jin-Gang Yu

Whole-slide image (WSI) classification is a challenging task because 1) patches from WSI lack annotation, and 2) WSI possesses unnecessary variability, e.g., stain protocol. Recently, Multiple-Instance Learning (MIL) has made significant…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Joohyung Lee , Heejeong Nam , Kwanhyung Lee , Sangchul Hahn

Weakly-supervised temporal action localization aims to localize and recognize actions in untrimmed videos with only video-level category labels during training. Without instance-level annotations, most existing methods follow the…

Computer Vision and Pattern Recognition · Computer Science 2023-05-30 Huan Ren , Wenfei Yang , Tianzhu Zhang , Yongdong Zhang

Multiple Instance Learning (MIL) for whole slide image (WSI) analysis in computational pathology often neglects instance-level learning as supervision is typically provided only at the bag level, hindering the integrated consideration of…

Computer Vision and Pattern Recognition · Computer Science 2025-09-26 Shuyang Wu , Yifu Qiu , Ines P. Nearchou , Sandrine Prost , Jonathan A. Fallowfield , Hideki Ueno , Hitoshi Tsuda , David J. Harrison , Hakan Bilen , Timothy J. Kendall

A common problem with segmentation of medical images using neural networks is the difficulty to obtain a significant number of pixel-level annotated data for training. To address this issue, we proposed a semi-supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2023-02-23 Ange Lou , Kareem Tawfik , Xing Yao , Ziteng Liu , Jack Noble

In surgical procedures, correct instrument counting is essential. Instance segmentation is a location method that locates not only an object's bounding box but also each pixel's specific details. However, obtaining mask-level annotations is…

Computer Vision and Pattern Recognition · Computer Science 2023-11-17 Zhen Sun , Huan Xu , Jinlin Wu , Zhen Chen , Zhen Lei , Hongbin Liu

We introduce $\textit{InExtremIS}$, a weakly supervised 3D approach to train a deep image segmentation network using particularly weak train-time annotations: only 6 extreme clicks at the boundary of the objects of interest. Our…

Computer Vision and Pattern Recognition · Computer Science 2021-11-08 Reuben Dorent , Samuel Joutard , Jonathan Shapey , Aaron Kujawa , Marc Modat , Sebastien Ourselin , Tom Vercauteren

Multiple instance learning (MIL) is a form of weakly supervised learning where training instances are arranged in sets, called bags, and a label is provided for the entire bag. This formulation is gaining interest because it naturally fits…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Marc-André Carbonneau , Veronika Cheplygina , Eric Granger , Ghyslain Gagnon

Human body part segmentation refers to the task of predicting the semantic segmentation mask for each body part. Fully supervised body part segmentation methods achieve good performances but require an enormous amount of effort to annotate…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Zhengyuan Yang , Yuncheng Li , Linjie Yang , Ning Zhang , Jiebo Luo

The rapid development of deep learning has driven significant progress in image semantic segmentation - a fundamental task in computer vision. Semantic segmentation algorithms often depend on the availability of pixel-level labels (i.e.,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-03 Zhaozheng Chen , Qianru Sun