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Unsupervised object discovery aims to localize objects in images, while removing the dependence on annotations required by most deep learning-based methods. To address this problem, we propose a fully unsupervised, bottom-up approach, for…

计算机视觉与模式识别 · 计算机科学 2022-12-21 Sandra Kara , Hejer Ammar , Florian Chabot , Quoc-Cuong Pham

Nuclear segmentation in histology images is a challenging task due to significant variations in the shape and appearance of nuclei. One of the main hurdles in nuclear instance segmentation is overlapping nuclei where a smart algorithm is…

图像与视频处理 · 电气工程与系统科学 2019-08-28 Navid Alemi Koohbanani , Mostafa Jahanifar , Ali Gooya , Nasir Rajpoot

CNN visualization and interpretation methods, like class-activation maps (CAMs), are typically used to highlight the image regions linked to class predictions. These models allow to simultaneously classify images and extract class-dependent…

计算机视觉与模式识别 · 计算机科学 2020-11-17 Soufiane Belharbi , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

Nodule segmentation from breast ultrasound images is challenging yet essential for the diagnosis. Weakly-supervised segmentation (WSS) can help reduce time-consuming and cumbersome manual annotation. Unlike existing weakly-supervised…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Yuhao Huang , Xin Yang , Yuxin Zou , Chaoyu Chen , Jian Wang , Haoran Dou , Nishant Ravikumar , Alejandro F Frangi , Jianqiao Zhou , Dong Ni

In digital pathology, segmenting densely distributed objects like glands and nuclei is crucial for downstream analysis. Since detailed pixel-wise annotations are very time-consuming, we need semi-supervised segmentation methods that can…

图像与视频处理 · 电气工程与系统科学 2024-07-18 Meilong Xu , Xiaoling Hu , Saumya Gupta , Shahira Abousamra , Chao Chen

Modern machine learning pipelines, in particular those based on deep learning (DL) models, require large amounts of labeled data. For classification problems, the most common learning paradigm consists of presenting labeled examples during…

计算机视觉与模式识别 · 计算机科学 2022-11-30 Jacopo Teneggi , Paul H. Yi , Jeremias Sulam

We propose adversarial constrained-CNN loss, a new paradigm of constrained-CNN loss methods, for weakly supervised medical image segmentation. In the new paradigm, prior knowledge is encoded and depicted by reference masks, and is further…

计算机视觉与模式识别 · 计算机科学 2020-05-04 Pengyi Zhang , Yunxin Zhong , Xiaoqiong Li

Most medical image lesion segmentation methods rely on hand-crafted accurate annotations of the original image for supervised learning. Recently, a series of weakly supervised or unsupervised methods have been proposed to reduce the…

计算机视觉与模式识别 · 计算机科学 2024-06-24 Jiawei Chen , Dingkang Yang , Yuxuan Lei , Lihua Zhang

Despite their superior performance, deep-learning methods often suffer from the disadvantage of needing large-scale well-annotated training data. In response, recent literature has seen a proliferation of efforts aimed at reducing the…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Ji Yu

Nuclei segmentation is a fundamental task that is critical for various computational pathology applications including nuclei morphology analysis, cell type classification, and cancer grading. Conventional vision-based methods for nuclei…

计算机视觉与模式识别 · 计算机科学 2018-10-23 Faisal Mahmood , Daniel Borders , Richard Chen , Gregory N. McKay , Kevan J. Salimian , Alexander Baras , Nicholas J. Durr

Multi-class cell segmentation in high-resolution Giga-pixel whole slide images (WSI) is critical for various clinical applications. Training such an AI model typically requires labor-intensive pixel-wise manual annotation from experienced…

This paper presents a novel approach for learning instance segmentation with image-level class labels as supervision. Our approach generates pseudo instance segmentation labels of training images, which are used to train a fully supervised…

计算机视觉与模式识别 · 计算机科学 2019-05-13 Jiwoon Ahn , Sunghyun Cho , Suha Kwak

We propose an embarrassingly simple point annotation scheme to collect weak supervision for instance segmentation. In addition to bounding boxes, we collect binary labels for a set of points uniformly sampled inside each bounding box. We…

计算机视觉与模式识别 · 计算机科学 2022-06-17 Bowen Cheng , Omkar Parkhi , Alexander Kirillov

Food instance segmentation is essential to estimate the serving size of dishes in a food image. The recent cutting-edge techniques for instance segmentation are deep learning networks with impressive segmentation quality and fast…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Huu-Thanh Nguyen , Yu Cao , Chong-Wah Ngo , Wing-Kwong Chan

Manually annotating nuclei from the gigapixel Hematoxylin and Eosin (H&E)-stained Whole Slide Images (WSIs) is a laborious and costly task, meaning automated algorithms for cell nuclei instance segmentation and classification could…

计算机视觉与模式识别 · 计算机科学 2024-07-29 João D. Nunes , Diana Montezuma , Domingos Oliveira , Tania Pereira , Jaime S. Cardoso

Biomedical image segmentation plays a significant role in computer-aided diagnosis. However, existing CNN based methods rely heavily on massive manual annotations, which are very expensive and require huge human resources. In this work, we…

计算机视觉与模式识别 · 计算机科学 2023-01-13 Ruifei Zhang , Sishuo Liu , Yizhou Yu , Guanbin Li

Multiple instance learning (MIL) has shown significant promise in histopathology whole slide image (WSI) analysis for cancer diagnosis and prognosis. However, the inherent spatial heterogeneity of WSIs presents critical challenges, as…

计算机视觉与模式识别 · 计算机科学 2026-01-13 Junjian Li , Jin Liu , Hulin Kuang , Hailin Yue , Mengshen He , Jianxin Wang

Weakly supervised instance segmentation with image-level labels, instead of expensive pixel-level masks, remains unexplored. In this paper, we tackle this challenging problem by exploiting class peak responses to enable a classification…

计算机视觉与模式识别 · 计算机科学 2018-04-04 Yanzhao Zhou , Yi Zhu , Qixiang Ye , Qiang Qiu , Jianbin Jiao

Assessing the presence of potentially malignant lymph nodes aids in estimating cancer progression, and identifying surrounding benign lymph nodes can assist in determining potential metastatic pathways for cancer. For quantitative analysis,…

计算机视觉与模式识别 · 计算机科学 2025-04-16 Litingyu Wang , Yijie Qu , Xiangde Luo , Wenjun Liao , Shichuan Zhang , Guotai Wang

Instance segmentation is essential for applications such as automated monitoring of plant health, growth, and yield. However, extensive effort is required to create large-scale datasets with pixel-level annotations of each object instance…

计算机视觉与模式识别 · 计算机科学 2026-03-10 Keyhan Najafian , Farhad Maleki , Lingling Jin , Ian Stavness