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Lesion segmentation on nasal endoscopic images is challenging due to its complex lesion features. Fully-supervised deep learning methods achieve promising performance with pixel-level annotations but impose a significant annotation burden…

计算机视觉与模式识别 · 计算机科学 2026-02-11 Pengyu Jie , Wanquan Liu , Chenqiang Gao , Yihui Wen , Rui He , Weiping Wen , Pengcheng Li , Jintao Zhang , Deyu Meng

Recent advances in deep learning have greatly facilitated the automated segmentation of ultrasound images, which is essential for nodule morphological analysis. Nevertheless, most existing methods depend on extensive and precise annotations…

计算机视觉与模式识别 · 计算机科学 2024-04-24 Xingyue Zhao , Zhongyu Li , Xiangde Luo , Peiqi Li , Peng Huang , Jianwei Zhu , Yang Liu , Jihua Zhu , Meng Yang , Shi Chang , Jun Dong

Due to the expensive and time-consuming annotations (e.g., segmentation) for real-world images, recent works in computer vision resort to synthetic data. However, the performance on the real image often drops significantly because of the…

计算机视觉与模式识别 · 计算机科学 2019-04-03 Xinge Zhu , Hui Zhou , Ceyuan Yang , Jianping Shi , Dahua Lin

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…

计算机视觉与模式识别 · 计算机科学 2022-12-16 Anurag Das , Yongqin Xian , Yang He , Zeynep Akata , Bernt Schiele

Scarcity of high quality annotated images remains a limiting factor for training accurate image segmentation models. While more and more annotated datasets become publicly available, the number of samples in each individual database is…

计算机视觉与模式识别 · 计算机科学 2021-07-14 Gregory Filbrandt , Konstantinos Kamnitsas , David Bernstein , Alexandra Taylor , Ben Glocker

Accurate identification of breast masses is crucial in diagnosing breast cancer; however, it can be challenging due to their small size and being camouflaged in surrounding normal glands. Worse still, it is also expensive in clinical…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Xinyu Xiong , Churan Wang , Wenxue Li , Guanbin Li

When domain experts are needed to perform data annotation for complex machine-learning tasks, reducing annotation effort is crucial in order to cut down time and expenses. For cases when there are no annotations available, one approach is…

机器学习 · 计算机科学 2022-06-22 Einari Vaaras , Manu Airaksinen , Okko Räsänen

Accurate automatic medical image segmentation relies on high-quality, dense annotations, which are costly and time-consuming. Weakly supervised learning provides a more efficient alternative by leveraging sparse and coarse annotations…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Dongdong Meng , Sheng Li , Hao Wu , Suqing Tian , Wenjun Ma , Guoping Wang , Xueqing Yan

Without ground truth supervision, self-supervised depth estimation can be trapped in a local minimum due to the gradient-locality issue of the photometric loss. In this paper, we present a framework to enhance depth by leveraging semantic…

计算机视觉与模式识别 · 计算机科学 2023-04-03 Shan Lin , Yuheng Zhi , Michael C. Yip

Scribble-based weakly supervised semantic segmentation leverages only a few annotated pixels as labels to train a segmentation model, presenting significant potential for reducing the human labor involved in the annotation process. This…

计算机视觉与模式识别 · 计算机科学 2025-03-19 Xinliang Zhang , Lei Zhu , Shuang Zeng , Hangzhou He , Ourui Fu , Zhengjian Yao , Zhaoheng Xie , Yanye Lu

The cross entropy loss is widely used due to its effectiveness and solid theoretical grounding. However, as training progresses, the loss tends to focus on hard to classify samples, which may prevent the network from obtaining gains in…

机器学习 · 计算机科学 2021-09-14 Barak Battash , Lior Wolf , Tamir Hazan

3D point cloud semantic segmentation has a wide range of applications. Recently, weakly supervised point cloud segmentation methods have been proposed, aiming to alleviate the expensive and laborious manual annotation process by leveraging…

计算机视觉与模式识别 · 计算机科学 2024-01-01 Xiawei Li , Qingyuan Xu , Jing Zhang , Tianyi Zhang , Qian Yu , Lu Sheng , Dong Xu

Precise boundary annotations of image regions can be crucial for downstream applications which rely on region-class semantics. Some document collections contain densely laid out, highly irregular and overlapping multi-class region instances…

计算机视觉与模式识别 · 计算机科学 2021-08-24 Abhishek Trivedi , Ravi Kiran Sarvadevabhatla

Semantic segmentation is a crucial task in medical imaging. Although supervised learning techniques have proven to be effective in performing this task, they heavily depend on large amounts of annotated training data. The recently…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Ron Keuth , Lasse Hansen , Maren Balks , Ronja Jäger , Anne-Nele Schröder , Ludger Tüshaus , Mattias Heinrich

The performance of the state-of-the-art image segmentation methods heavily relies on the high-quality annotations, which are not easily affordable, particularly for medical data. To alleviate this limitation, in this study, we propose a…

机器学习 · 统计学 2019-08-20 Aliasghar Mortazi , Naji Khosravan , Drew A. Torigian , Sila Kurugol , Ulas Bagci

We consider weakly supervised segmentation where only a fraction of pixels have ground truth labels (scribbles) and focus on a self-labeling approach optimizing relaxations of the standard unsupervised CRF/Potts loss on unlabeled pixels.…

计算机视觉与模式识别 · 计算机科学 2025-07-03 Zhongwen Zhang , Yuri Boykov

Active learning is a paradigm aimed at reducing the annotation effort by training the model on actively selected informative and/or representative samples. Another paradigm to reduce the annotation effort is self-training that learns from a…

计算机视觉与模式识别 · 计算机科学 2021-08-27 Javad Zolfaghari Bengar , Joost van de Weijer , Bartlomiej Twardowski , Bogdan Raducanu

The reliability of supervised machine learning systems depends on the accuracy and availability of ground truth labels. However, the process of human annotation, being prone to error, introduces the potential for noisy labels, which can…

计算机视觉与模式识别 · 计算机科学 2023-09-19 David Tschirschwitz , Christian Benz , Morris Florek , Henrik Norderhus , Benno Stein , Volker Rodehorst

We propose two novel loss functions, Multiplicative Loss and Confidence-Adaptive Multiplicative Loss, for semantic segmentation in medical and cellular images. Although Cross Entropy and Dice Loss are widely used, their additive combination…

计算机视觉与模式识别 · 计算机科学 2025-10-15 Yuto Yokoi , Kazuhiro Hotta

Weakly supervised nuclei segmentation is a critical problem for pathological image analysis and greatly benefits the community due to the significant reduction of labeling cost. Adopting point annotations, previous methods mostly rely on…

图像与视频处理 · 电气工程与系统科学 2022-02-14 Weizhen Liu , Qian He , Xuming He