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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

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…

Computer Vision and Pattern Recognition · Computer Science 2019-09-12 Ziyi Kou , Wentian Zhao , Guofeng Cui , Shaojie Wang

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…

Image and Video Processing · Electrical Eng. & Systems 2022-02-14 Weizhen Liu , Qian He , Xuming He

In many review classification applications, a fine-grained analysis of the reviews is desirable, because different segments (e.g., sentences) of a review may focus on different aspects of the entity in question. However, training supervised…

Machine Learning · Computer Science 2019-10-02 Giannis Karamanolakis , Daniel Hsu , Luis Gravano

Understanding plant root systems is critical for advancing research in soil-plant interactions, nutrient uptake, and overall plant health. However, accurate imaging of roots in subterranean environments remains a persistent challenge due to…

Computer Vision and Pattern Recognition · Computer Science 2026-01-12 Shubham Agarwal , Ofek Nourian , Michael Sidorov , Sharon Chemweno , Ofer Hadar , Naftali Lazarovitch , Jhonathan E. Ephrath

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…

Computer Vision and Pattern Recognition · Computer Science 2020-08-05 Yu-Ting Chang , Qiaosong Wang , Wei-Chih Hung , Robinson Piramuthu , Yi-Hsuan Tsai , Ming-Hsuan Yang

Fully supervised deep neural networks for segmentation usually require a massive amount of pixel-level labels which are manually expensive to create. In this work, we develop a multi-task learning method to relax this constraint. We regard…

Computer Vision and Pattern Recognition · Computer Science 2021-04-07 Rihuan Ke , Aurélie Bugeau , Nicolas Papadakis , Mark Kirkland , Peter Schuetz , Carola-Bibiane Schönlieb

Existing salient instance detection (SID) methods typically learn from pixel-level annotated datasets. In this paper, we present the first weakly-supervised approach to the SID problem. Although weak supervision has been considered in…

Computer Vision and Pattern Recognition · Computer Science 2020-09-30 Xin Tian , Ke Xu , Xin Yang , Baocai Yin , Rynson W. H. Lau

We are interested in inferring object segmentation by leveraging only object class information, and by considering only minimal priors on the object segmentation task. This problem could be viewed as a kind of weakly supervised segmentation…

Computer Vision and Pattern Recognition · Computer Science 2015-04-27 Pedro O. Pinheiro , Ronan Collobert

Class-incremental semantic image segmentation assumes multiple model updates, each enriching the model to segment new categories. This is typically carried out by providing expensive pixel-level annotations to the training algorithm for all…

Computer Vision and Pattern Recognition · Computer Science 2023-06-01 Subhankar Roy , Riccardo Volpi , Gabriela Csurka , Diane Larlus

In fine-grained road scene understanding, semantic segmentation plays a crucial role in enabling vehicles to perceive and comprehend their surroundings. By assigning a specific class label to each pixel in an image, it allows for precise…

Computer Vision and Pattern Recognition · Computer Science 2026-01-27 Yuting Hong , Yongkang Wu , Hui Xiao , Huazheng Hao , Xiaojie Qiu , Baochen Yao , Chengbin Peng

Cell detection and segmentation is fundamental for all downstream analysis of digital pathology images. However, obtaining the pixel-level ground truth for single cell segmentation is extremely labor intensive. To overcome this challenge,…

Computer Vision and Pattern Recognition · Computer Science 2019-10-29 Alireza Chamanzar , Yao Nie

The segmentation of plant roots from soil and other growing media in X-ray computed tomography images is needed to effectively study the root system architecture without excavation. However, segmentation is a challenging problem in this…

Computer Vision and Pattern Recognition · Computer Science 2018-09-19 Amy Tabb , Keith E. Duncan , Christopher N. Topp

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…

Computer Vision and Pattern Recognition · Computer Science 2020-11-17 Soufiane Belharbi , Ismail Ben Ayed , Luke McCaffrey , Eric Granger

We propose an approach to discover class-specific pixels for the weakly-supervised semantic segmentation task. We show that properly combining saliency and attention maps allows us to obtain reliable cues capable of significantly boosting…

Computer Vision and Pattern Recognition · Computer Science 2018-08-17 Arslan Chaudhry , Puneet K. Dokania , Philip H. S. Torr

Weakly supervised semantic segmentation with only image-level labels saves large human effort to annotate pixel-level labels. Cutting-edge approaches rely on various innovative constraints and heuristic rules to generate the masks for every…

Computer Vision and Pattern Recognition · Computer Science 2020-01-31 Junsong Fan , Zhaoxiang Zhang , Tieniu Tan , Chunfeng Song , Jun Xiao

Detecting novel objects from few examples has become an emerging topic in computer vision recently. However, these methods need fully annotated training images to learn new object categories which limits their applicability in real world…

Computer Vision and Pattern Recognition · Computer Science 2021-03-29 Amirreza Shaban , Amir Rahimi , Thalaiyasingam Ajanthan , Byron Boots , Richard Hartley

The complex background in the soil image collected in the field natural environment will affect the subsequent soil image recognition based on machine vision. Segmenting the soil center area from the soil image can eliminate the influence…

Computer Vision and Pattern Recognition · Computer Science 2024-07-26 Yida Chen , Kang Liu , Yi Xin , Xinru Zhao

Automatic cell segmentation in microscopy images works well with the support of deep neural networks trained with full supervision. Collecting and annotating images, though, is not a sustainable solution for every new microscopy database…

Computer Vision and Pattern Recognition · Computer Science 2020-07-06 Youssef Dawoud , Julia Hornauer , Gustavo Carneiro , Vasileios Belagiannis

Semantic segmentation is an important and prevalent task, but severely suffers from the high cost of pixel-level annotations when extending to more classes in wider applications. To this end, we focus on the problem named weak-shot semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Junjie Chen , Li Niu , Siyuan Zhou , Jianlou Si , Chen Qian , Liqing Zhang