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While nowadays deep neural networks achieve impressive performances on semantic segmentation tasks, they are usually trained by optimizing pixel-wise losses such as cross-entropy. As a result, the predictions outputted by such networks…

Computer Vision and Pattern Recognition · Computer Science 2019-05-07 Yifu Chen , Arnaud Dapogny , Matthieu Cord

Nuclei instance segmentation in histopathological images is of great importance for biological analysis and cancer diagnosis but remains challenging for two reasons. (1) Similar visual presentation of intranuclear and extranuclear regions…

Computer Vision and Pattern Recognition · Computer Science 2024-02-12 Ye Zhang , Linghan Cai , Ziyue Wang , Yongbing Zhang

Automated semantic segmentation of cell nuclei in microscopic images is crucial for disease diagnosis and tissue microenvironment analysis. Nonetheless, this task presents challenges due to the complexity and heterogeneity of cells. While…

Image and Video Processing · Electrical Eng. & Systems 2023-08-10 Zhuchen Shao , Sourya Sengupta , Hua Li , Mark A. Anastasio

Cell detection is the task of detecting the approximate positions of cell centroids from microscopy images. Recently, convolutional neural network-based approaches have achieved promising performance. However, these methods require a…

Computer Vision and Pattern Recognition · Computer Science 2021-07-20 Kazuya Nishimura , Hyeonwoo Cho , Ryoma Bise

The task of unsupervised semantic segmentation aims to cluster pixels into semantically meaningful groups. Specifically, pixels assigned to the same cluster should share high-level semantic properties like their object or part category.…

Computer Vision and Pattern Recognition · Computer Science 2022-06-14 Wouter Van Gansbeke , Simon Vandenhende , Luc Van Gool

Semantic segmentation consists of predicting a semantic label for each image pixel. While existing deep learning approaches achieve high accuracy, they often overlook the ordinal relationships between classes, which can provide critical…

Computer Vision and Pattern Recognition · Computer Science 2025-02-06 Ricardo P. M. Cruz , Rafael Cristino , Jaime S. Cardoso

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…

Computer Vision and Pattern Recognition · Computer Science 2024-07-29 João D. Nunes , Diana Montezuma , Domingos Oliveira , Tania Pereira , Jaime S. Cardoso

Metacells are disjoint and homogeneous groups of single-cell profiles, representing discrete and highly granular cell states. Existing metacell algorithms tend to use only one modality to infer metacells, even though single-cell multi-omics…

Genomics · Quantitative Biology 2022-07-26 Haiyi Mao , Minxue Jia , Jason Xiaotian Dou , Haotian Zhang , Panayiotis V. Benos

Instance segmentation is a form of image detection which has a range of applications, such as object refinement, medical image analysis, and image/video editing, all of which demand a high degree of accuracy. However, this precision is…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Muhammed Korkmaz , T. Metin Sezgin

State-of-the-art instance-aware semantic segmentation algorithms use axis-aligned bounding boxes as an intermediate processing step to infer the final instance mask output. This often leads to coarse and inaccurate mask proposals due to the…

Computer Vision and Pattern Recognition · Computer Science 2020-03-16 Patrick Follmann , Rebecca König

Building segmentation is of great importance in the task of remote sensing imagery interpretation. However, the existing semantic segmentation and instance segmentation methods often lead to segmentation masks with blurred boundaries. In…

Computer Vision and Pattern Recognition · Computer Science 2020-06-09 Qingyu Li , Lichao Mou , Yuansheng Hua , Yao Sun , Pu Jin , Yilei Shi , Xiao Xiang Zhu

Nuclear segmentation is important and frequently demanded for pathology image analysis, yet is also challenging due to nuclear crowdedness and possible occlusion. In this paper, we present a novel bottom-up method for nuclear segmentation.…

Computer Vision and Pattern Recognition · Computer Science 2019-07-11 Jiahui Li , Zhiqiang Hu , Shuang Yang

Recent studies have demonstrated the superiority of deep learning in medical image analysis, especially in cell instance segmentation, a fundamental step for many biological studies. However, the excellent performance of the neural networks…

Image and Video Processing · Electrical Eng. & Systems 2022-10-25 Huaqian Wu , Nicolas Souedet , Caroline Jan , Cédric Clouchoux , Thierry Delzescaux

This paper presents a novel technique for skin colour segmentation that overcomes the limitations faced by existing techniques such as Colour Range Thresholding. Skin colour segmentation is affected by the varied skin colours and…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Tejas Dastane , Varun Rao , Kartik Shenoy , Devendra Vyavaharkar

Attributes are semantically meaningful characteristics whose applicability widely crosses category boundaries. They are particularly important in describing and recognizing concepts where no explicit training example is given, \textit{e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2017-05-01 Mahdi M. Kalayeh , Boqing Gong , Mubarak Shah

We share our recent findings in an attempt to train a universal segmentation network for various cell types and imaging modalities. Our method was built on the generalized U-Net architecture, which allows the evaluation of each component…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Tianqi Guo , Yin Wang , Luis Solorio , Jan P. Allebach

State-of-the-art (SOTA) anomaly segmentation approaches on complex urban driving scenes explore pixel-wise classification uncertainty learned from outlier exposure, or external reconstruction models. However, previous uncertainty approaches…

Computer Vision and Pattern Recognition · Computer Science 2022-09-07 Yu Tian , Yuyuan Liu , Guansong Pang , Fengbei Liu , Yuanhong Chen , Gustavo Carneiro

Small sample instance segmentation is a very challenging task, and many existing methods follow the training strategy of meta-learning which pre-train models on support set and fine-tune on query set. The pre-training phase, which is highly…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Ruting Chi , Zhiyi Huang , Yuexing Han

Instance segmentation has attracted recent attention in computer vision and existing methods in this domain mostly have an object detection stage. In this paper, we study the intrinsic challenge of the instance segmentation problem, the…

Computer Vision and Pattern Recognition · Computer Science 2016-11-30 Long Jin , Zeyu Chen , Zhuowen Tu

We present an instance segmentation scheme based on pixel affinity information, which is the relationship of two pixels belonging to a same instance. In our scheme, we use two neural networks with similar structure. One is to predict pixel…

Computer Vision and Pattern Recognition · Computer Science 2018-11-28 Yiding Liu , Siyu Yang , Bin Li , Wengang Zhou , Jizheng Xu , Houqiang Li , Yan Lu