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Image downscaling is one of the widely used operations in image processing and computer graphics. It was recently demonstrated in the literature that kernel-based convolutional filters could be modified to develop efficient image…

Image and Video Processing · Electrical Eng. & Systems 2023-01-18 Sanjay Ghosh , Arpan Garai

Semantic segmentation is an important and popular research area in computer vision that focuses on classifying pixels in an image based on their semantics. However, supervised deep learning requires large amounts of data to train models and…

Computer Vision and Pattern Recognition · Computer Science 2025-03-19 Lingyan Ran , Yali Li , Guoqiang Liang , Yanning Zhang

A novel multi-focus image fusion algorithm performed in spatial domain based on similarity characteristics is proposed incorporating with region segmentation. In this paper, a new similarity measure is developed based on the structural…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Ya-Qiong Zhang , Xiao-Jun Wu , Hui Li

We present a new method for efficient high-quality image segmentation of objects and scenes. By analogizing classical computer graphics methods for efficient rendering with over- and undersampling challenges faced in pixel labeling tasks,…

Computer Vision and Pattern Recognition · Computer Science 2020-02-18 Alexander Kirillov , Yuxin Wu , Kaiming He , Ross Girshick

Whole brain parcellation requires inferring hundreds of segmentation labels in large image volumes and thus presents significant practical challenges for deep learning approaches. We introduce label merge-and-split, a method that first…

Computer Vision and Pattern Recognition · Computer Science 2024-10-22 Aaron Kujawa , Reuben Dorent , Sebastien Ourselin , Tom Vercauteren

Existing semantic segmentation approaches either aim to improve the object's inner consistency by modeling the global context, or refine objects detail along their boundaries by multi-scale feature fusion. In this paper, a new paradigm for…

Computer Vision and Pattern Recognition · Computer Science 2020-08-19 Xiangtai Li , Xia Li , Li Zhang , Guangliang Cheng , Jianping Shi , Zhouchen Lin , Shaohua Tan , Yunhai Tong

This paper presents a new probabilistic generative model for image segmentation, i.e. the task of partitioning an image into homogeneous regions. Our model is grounded on a mid-level image representation, called a region tree, in which…

Machine Learning · Statistics 2015-06-15 Shell X. Hu , Christopher K. I. Williams , Sinisa Todorovic

This paper proposes a new parallel approach to solve connected components on a 2D binary image implemented with CUDA. We employ the following strategies to accelerate neighborhood exploration after dividing an input image into independent…

Computer Vision and Pattern Recognition · Computer Science 2018-01-29 Jun Chen , Keisuke Nonaka , Ryosuke Watanabe , Hiroshi Sankoh , Houari Sabirin , Sei Naito

Models for semantic segmentation require a large amount of hand-labeled training data which is costly and time-consuming to produce. For this purpose, we present a label fusion framework that is capable of improving semantic pixel labels of…

Computer Vision and Pattern Recognition · Computer Science 2022-02-25 Florian Fervers , Timo Breuer , Gregor Stachowiak , Sebastian Bullinger , Christoph Bodensteiner , Michael Arens

Selective segmentation involves incorporating user input to partition an image into foreground and background, by discriminating between objects of a similar type. Typically, such methods involve introducing additional constraints to…

Computer Vision and Pattern Recognition · Computer Science 2023-12-20 Michael Roberts , Jack Spencer

Almost all existing deep learning approaches for semantic segmentation tackle this task as a pixel-wise classification problem. Yet humans understand a scene not in terms of pixels, but by decomposing it into perceptual groups and…

Computer Vision and Pattern Recognition · Computer Science 2019-10-31 Jyh-Jing Hwang , Stella X. Yu , Jianbo Shi , Maxwell D. Collins , Tien-Ju Yang , Xiao Zhang , Liang-Chieh Chen

Machine learning for remote sensing imaging relies on up-to-date and accurate labels for model training and testing. Labelling remote sensing imagery is time and cost intensive, requiring expert analysis. Previous labelling tools rely on…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Tulsi Patel , Mark W. Jones , Thomas Redfern

Medical image segmentation methods are generally designed as fully-supervised to guarantee model performance, which require a significant amount of expert annotated samples that are high-cost and laborious. Semi-supervised image…

Computer Vision and Pattern Recognition · Computer Science 2023-10-10 Xiangyu Zhao , Zengxin Qi , Sheng Wang , Qian Wang , Xuehai Wu , Ying Mao , Lichi Zhang

Natural images are typically a composition of cartoon and texture structures. A medical image might, for instance, show a mixture of gray matter and the skull cap. One common task is to separate such an image into two single images, one…

Functional Analysis · Mathematics 2012-04-30 Gitta Kutyniok

With the increase in the number of image data and the lack of corresponding labels, weakly supervised learning has drawn a lot of attention recently in computer vision tasks, especially in the fine-grained semantic segmentation problem. To…

Computer Vision and Pattern Recognition · Computer Science 2021-10-11 Ke Zhang , Sihong Chen , Qi Ju , Yong Jiang , Yucong Li , Xin He

Scene parsing has attracted a lot of attention in computer vision. While parametric models have proven effective for this task, they cannot easily incorporate new training data. By contrast, nonparametric approaches, which bypass any…

Computer Vision and Pattern Recognition · Computer Science 2016-03-16 Mohammad Najafi , Sarah Taghavi Namin , Mathieu Salzmann , Lars Petersson

Information from an image occurs over multiple and distinct spatial scales. Image pyramid multiresolution representations are a useful data structure for image analysis and manipulation over a spectrum of spatial scales. This paper employs…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Steve T. M. Ataky , Diego Saqui , Jonathan de Matos , Alceu S. Britto , Alessandro L. Koerich

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

Unsupervised image segmentation is an important task in many real-world scenarios where labelled data is of scarce availability. In this paper we propose a novel approach that harnesses recent advances in unsupervised learning using a…

Computer Vision and Pattern Recognition · Computer Science 2022-10-24 Moshe Eliasof , Nir Ben Zikri , Eran Treister

Image segmentation aims to partition an image according to the objects in the scene and is a fundamental step in analysing very high spatial-resolution (VHR) remote sensing imagery. Current methods struggle to effectively consider land…

Computer Vision and Pattern Recognition · Computer Science 2024-01-08 Xianwei Lv , Claudio Persello , Wangbin Li , Xiao Huang , Dongping Ming , Alfred Stein