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State-of-the-art approaches for semantic segmentation rely on deep convolutional neural networks trained on fully annotated datasets, that have been shown to be notoriously expensive to collect, both in terms of time and money. To remedy…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Anton Obukhov , Stamatios Georgoulis , Dengxin Dai , Luc Van Gool

Removing supervision in semantic segmentation is still tricky. Current approaches can deal with common categorical patterns yet resort to multi-stage architectures. We design a novel end-to-end model leveraging local-global patch matching…

Computer Vision and Pattern Recognition · Computer Science 2023-03-31 Simone Rossetti , Nico Samà , Fiora Pirri

Tissue-level semantic segmentation is a vital step in computational pathology. Fully-supervised models have already achieved outstanding performance with dense pixel-level annotations. However, drawing such labels on the giga-pixel whole…

Image and Video Processing · Electrical Eng. & Systems 2021-10-18 Chu Han , Jiatai Lin , Jinhai Mai , Yi Wang , Qingling Zhang , Bingchao Zhao , Xin Chen , Xipeng Pan , Zhenwei Shi , Xiaowei Xu , Su Yao , Lixu Yan , Huan Lin , Zeyan Xu , Xiaomei Huang , Guoqiang Han , Changhong Liang , Zaiyi Liu

Weakly-supervised object detection has recently attracted increasing attention since it only requires image-levelannotations. However, the performance obtained by existingmethods is still far from being satisfactory compared with…

Computer Vision and Pattern Recognition · Computer Science 2020-02-21 Liao Zhang , Yan Yan , Lin Cheng , Hanzi Wang

We propose an approach to instance-level image segmentation that is built on top of category-level segmentation. Specifically, for each pixel in a semantic category mask, its corresponding instance bounding box is predicted using a deep…

Computer Vision and Pattern Recognition · Computer Science 2016-05-24 Zifeng Wu , Chunhua Shen , Anton van den Hengel

This work aims to leverage pre-trained foundation models, such as contrastive language-image pre-training (CLIP) and segment anything model (SAM), to address weakly supervised semantic segmentation (WSSS) using image-level labels. To this…

Computer Vision and Pattern Recognition · Computer Science 2023-12-12 Xiaobo Yang , Xiaojin Gong

Semantic segmentation is a challenging computer vision task demanding a significant amount of pixel-level annotated data. Producing such data is a time-consuming and costly process, especially for domains with a scarcity of experts, such as…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Sara Mousavi , Zhenning Yang , Kelley Cross , Dawnie Steadman , Audris Mockus

Pixel-level annotations are expensive and time consuming to obtain. Hence, weak supervision using only image tags could have a significant impact in semantic segmentation. Recently, CNN-based methods have proposed to fine-tune pre-trained…

Computer Vision and Pattern Recognition · Computer Science 2016-09-05 Fatemehsadat Saleh , Mohammad Sadegh Ali Akbarian , Mathieu Salzmann , Lars Petersson , Stephen Gould , Jose M. Alvarez

Segmentation in medical imaging is an essential and often preliminary task in the image processing chain, driving numerous efforts towards the design of robust segmentation algorithms. Supervised learning methods achieve excellent…

Image and Video Processing · Electrical Eng. & Systems 2024-04-03 Pierre Rougé , Pierre-Henri Conze , Nicolas Passat , Odyssée Merveille

Image-level weakly-supervised semantic segmentation (WSSS) reduces the usually vast data annotation cost by surrogate segmentation masks during training. The typical approach involves training an image classification network using global…

Computer Vision and Pattern Recognition · Computer Science 2024-06-10 Arvi Jonnarth , Yushan Zhang , Michael Felsberg

Semantic segmentation is a task that traditionally requires a large dataset of pixel-level ground truth labels, which is time-consuming and expensive to obtain. Recent advancements in the weakly-supervised setting show that reasonable…

Computer Vision and Pattern Recognition · Computer Science 2020-11-10 Erik Stammes , Tom F. H. Runia , Michael Hofmann , Mohsen Ghafoorian

Semantic segmentation, like other fields of computer vision, has seen a remarkable performance advance by the use of deep convolution neural networks. However, considering that neighboring pixels are heavily dependent on each other, both…

Computer Vision and Pattern Recognition · Computer Science 2017-08-08 Hyojin Park , Jisoo Jeong , Youngjoon Yoo , Nojun Kwak

Models based on Convolutional Neural Networks (CNNs) have been proven very successful for semantic segmentation and object parsing that yield hierarchies of features. Our key insight is to build convolutional networks that take input of…

Artificial Intelligence · Computer Science 2017-10-31 Jalal Mirakhorli , Hamidreza Amindavar

Weakly supervised semantic segmentation produces a pixel-level localization from a classifier, but it is likely to restrict its focus to a small discriminative region of the target object. AdvCAM is an attribution map of an image that is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-17 Jungbeom Lee , Eunji Kim , Sungroh Yoon

The availability of large-scale data sets is an essential pre-requisite for deep learning based semantic segmentation schemes. Since obtaining pixel-level labels is extremely expensive, supervising deep semantic segmentation networks using…

Computer Vision and Pattern Recognition · Computer Science 2019-09-23 Sinem Aslan , Marcello Pelillo

We propose a novel deep neural network architecture for semi-supervised semantic segmentation using heterogeneous annotations. Contrary to existing approaches posing semantic segmentation as a single task of region-based classification, our…

Computer Vision and Pattern Recognition · Computer Science 2015-06-18 Seunghoon Hong , Hyeonwoo Noh , Bohyung Han

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

Semantic segmentation of microscopic cell images using deep learning is an important technique, however, it requires a large number of images and ground truth labels for training. To address the above problem, we consider an efficient…

Computer Vision and Pattern Recognition · Computer Science 2023-04-18 Sota Kato , Kazuhiro Hotta

The segmentation of coronary arteries in X-ray angiograms by convolutional neural networks (CNNs) is promising yet limited by the requirement of precisely annotating all pixels in a large number of training images, which is extremely…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Jingyang Zhang , Guotai Wang , Hongzhi Xie , Shuyang Zhang , Ning Huang , Shaoting Zhang , Lixu Gu

Providing pixel-level supervisions for scene text segmentation is inherently difficult and costly, so that only few small datasets are available for this task. To face the scarcity of training data, previous approaches based on…

Computer Vision and Pattern Recognition · Computer Science 2020-06-30 Simone Bonechi , Paolo Andreini , Monica Bianchini , Franco Scarselli