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Related papers: Semantic segmentation with coarse annotations

200 papers

Large annotated datasets are vital for training segmentation models, but pixel-level labeling is time-consuming, error-prone, and often requires scarce expert annotators, especially in medical imaging. In contrast, coarse annotations are…

Computer Vision and Pattern Recognition · Computer Science 2025-08-27 Le Zhang , Fuping Wu , Arun Thirunavukarasu , Kevin Bronik , Thomas Nichols , Bartlomiej W. Papiez

Training Convolutional Neural Networks (CNNs) for very high resolution images requires a large quantity of high-quality pixel-level annotations, which is extremely labor- and time-consuming to produce. Moreover, professional photo…

Computer Vision and Pattern Recognition · Computer Science 2022-02-16 Yuansheng Hua , Diego Marcos , Lichao Mou , Xiao Xiang Zhu , Devis Tuia

Convolutional neural networks (CNNs) show outstanding performance in many image processing problems, such as image recognition, object detection and image segmentation. Semantic segmentation is a very challenging task that requires…

Computer Vision and Pattern Recognition · Computer Science 2019-07-12 Fan Jia , Jun Liu , Xue-cheng Tai

Training a Convolutional Neural Network (CNN) for semantic segmentation typically requires to collect a large amount of accurate pixel-level annotations, a hard and expensive task. In contrast, simple image tags are easier to gather. With…

Computer Vision and Pattern Recognition · Computer Science 2019-02-25 Carolina Redondo-Cabrera , Marcos Baptista-Ríos , Roberto J. López-Sastre

The prevailing paradigm for producing semantic segmentation training data relies on densely labelling each pixel of each image in the training set, akin to colouring-in books. This approach becomes a bottleneck when scaling up in the number…

Computer Vision and Pattern Recognition · Computer Science 2022-11-18 Rodrigo Benenson , Vittorio Ferrari

The need for labour intensive pixel-wise annotation is a major limitation of many fully supervised learning methods for segmenting bioimages that can contain numerous object instances with thin separations. In this paper, we introduce a…

Computer Vision and Pattern Recognition · Computer Science 2020-09-11 Rihuan Ke , Aurélie Bugeau , Nicolas Papadakis , Peter Schuetz , Carola-Bibiane Schönlieb

Semantic segmentation is a critical step in automated image interpretation and analysis where pixels are classified into one or more predefined semantically meaningful classes. Deep learning approaches for semantic segmentation rely on…

Computer Vision and Pattern Recognition · Computer Science 2023-07-10 Tushar Kataria , Beatrice Knudsen , Shireen Elhabian

In this work, we study the problem of training deep networks for semantic image segmentation using only a fraction of annotated images, which may significantly reduce human annotation efforts. Particularly, we propose a strategy that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Arnab Kumar Mondal , Aniket Agarwal , Jose Dolz , Christian Desrosiers

While image segmentation is crucial in various computer vision applications, such as autonomous driving, grasping, and robot navigation, annotating all objects at the pixel-level for training is nearly impossible. Therefore, the study of…

Computer Vision and Pattern Recognition · Computer Science 2023-10-26 Cuong Manh Hoang , Byeongkeun Kang

Current state of the art methods for generating semantic segmentation rely heavily on a large set of images that have each pixel labeled with a class of interest label or background. Coming up with such labels, especially in domains that…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 R. Austin McEver , B. S. Manjunath

Collecting annotated data for semantic segmentation is time-consuming and hard to scale up. In this paper, we for the first time propose a unified framework, termed as Multi-Dataset Pretraining, to take full advantage of the fragmented…

Computer Vision and Pattern Recognition · Computer Science 2021-06-09 Bowen Shi , Xiaopeng Zhang , Haohang Xu , Wenrui Dai , Junni Zou , Hongkai Xiong , Qi Tian

Semantic segmentation is the pixel-wise labelling of an image. Since the problem is defined at the pixel level, determining image class labels only is not acceptable, but localising them at the original image pixel resolution is necessary.…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Irem Ulku , Erdem Akagunduz

Semantic segmentation aims to robustly predict coherent class labels for entire regions of an image. It is a scene understanding task that powers real-world applications (e.g., autonomous navigation). One important application, the use of…

Computer Vision and Pattern Recognition · Computer Science 2023-02-16 Yuxiang Zhang , Sachin Mehta , Anat Caspi

High-quality pixel-level annotations of medical images are essential for supervised segmentation tasks, but obtaining such annotations is costly and requires medical expertise. To address this challenge, we propose a novel coarse-to-fine…

Computer Vision and Pattern Recognition · Computer Science 2025-08-06 Anghong Du , Nay Aung , Theodoros N. Arvanitis , Stefan K. Piechnik , Joao A C Lima , Steffen E. Petersen , Le Zhang

Semantic image segmentation is one of the most important tasks in medical image analysis. Most state-of-the-art deep learning methods require a large number of accurately annotated examples for model training. However, accurate annotation…

Computer Vision and Pattern Recognition · Computer Science 2020-04-21 Ning Zhang , Susan Francis , Rayaz Malik , Xin Chen

For best performance, today's semantic segmentation methods use large and carefully labeled datasets, requiring expensive annotation budgets. In this work, we show that coarse annotation is a low-cost but highly effective alternative for…

Computer Vision and Pattern Recognition · Computer Science 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

As research interests in medical image analysis become increasingly fine-grained, the cost for extensive annotation also rises. One feasible way to reduce the cost is to annotate with coarse-grained superclass labels while using limited…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Linrui Dai , Wenhui Lei , Xiaofan Zhang

Deep convolutional neural networks have driven substantial advancements in the automatic understanding of images. Requiring a large collection of images and their associated annotations is one of the main bottlenecks limiting the adoption…

Computer Vision and Pattern Recognition · Computer Science 2019-08-22 Zahra Mirikharaji , Yiqi Yan , Ghassan Hamarneh

Image segmentation refers to the process to divide an image into nonoverlapping meaningful regions according to human perception, which has become a classic topic since the early ages of computer vision. A lot of research has been conducted…

Computer Vision and Pattern Recognition · Computer Science 2015-02-04 Hongyuan Zhu , Fanman Meng , Jianfei Cai , Shijian Lu

High-resolution semantic segmentation requires substantial computational resources. Traditional approaches in the field typically downscale the input images before processing and then upscale the low-resolution outputs back to their…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Ritambhara Singh , Abhishek Jain , Pietro Perona , Shivani Agarwal , Junfeng Yang