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Image segmentation is often ambiguous at the level of individual image patches and requires contextual information to reach label consensus. In this paper we introduce Segmenter, a transformer model for semantic segmentation. In contrast to…

Computer Vision and Pattern Recognition · Computer Science 2021-09-03 Robin Strudel , Ricardo Garcia , Ivan Laptev , Cordelia Schmid

We aim to improve segmentation through the use of machine learning tools during region agglomeration. We propose an active learning approach for performing hierarchical agglomerative segmentation from superpixels. Our method combines…

Computer Vision and Pattern Recognition · Computer Science 2015-03-13 Juan Nunez-Iglesias , Ryan Kennedy , Toufiq Parag , Jianbo Shi , Dmitri B. Chklovskii

It is always well believed that parsing an image into constituent visual patterns would be helpful for understanding and representing an image. Nevertheless, there has not been evidence in support of the idea on describing an image with a…

Computer Vision and Pattern Recognition · Computer Science 2019-09-11 Ting Yao , Yingwei Pan , Yehao Li , Tao Mei

High-resolution semantic segmentation requires substantial computational resources. Traditional approaches in the field typically downscale the input images before processing and then upscale the low-resolution outputs back to their…

Computer Vision and Pattern Recognition · Computer Science 2024-02-09 Ritambhara Singh , Abhishek Jain , Pietro Perona , Shivani Agarwal , Junfeng Yang

Hierarchical image segmentation provides region-oriented scalespace, i.e., a set of image segmentations at different detail levels in which the segmentations at finer levels are nested with respect to those at coarser levels. Most image…

Computer Vision and Pattern Recognition · Computer Science 2012-06-14 Silvio Jamil F. Guimarães , Jean Cousty , Yukiko Kenmochi , Laurent Najman

This paper investigates one of the most fundamental computer vision problems: image segmentation. We propose a supervised hierarchical approach to object-independent image segmentation. Starting with over-segmenting superpixels, we use a…

Computer Vision and Pattern Recognition · Computer Science 2016-08-16 Ting Liu , Mojtaba Seyedhosseini , Tolga Tasdizen

Semantic segmentation assigns labels to pixels in images, a critical yet challenging task in computer vision. Convolutional methods, although capturing local dependencies well, struggle with long-range relationships. Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Mian Muhammad Naeem Abid , Nancy Mehta , Zongwei Wu , Radu Timofte

Both local details and global context are crucial in medical image segmentation, and effectively integrating them is essential for achieving high accuracy. However, existing mainstream methods based on CNN-Transformer hybrid architectures…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Dayu Tan , Zhenpeng Xu , Yansen Su , Xin Peng , Chunhou Zheng , Weimin Zhong

This paper proposes a hierarchical clustering approach for the segmentation of mobile LiDAR point clouds. We perform the hierarchical clustering on unorganized point clouds based on a proximity matrix. The dissimilarity measure in the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-12 Sheng Xu , Ruisheng Wang , Han Zheng

Image segmentation aims at identifying regions of interest within an image, by grouping pixels according to their properties. This task resembles the statistical one of clustering, yet many standard clustering methods fail to meet the basic…

Computer Vision and Pattern Recognition · Computer Science 2021-01-22 Giovanna Menardi

Panoptic segmentation involves a combination of joint semantic segmentation and instance segmentation, where image contents are divided into two types: things and stuff. We present Panoptic SegFormer, a general framework for panoptic…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Zhiqi Li , Wenhai Wang , Enze Xie , Zhiding Yu , Anima Anandkumar , Jose M. Alvarez , Ping Luo , Tong Lu

In this paper, we design a hierarchical clustering algorithm for high-resolution hyperspectral images. At the core of the algorithm, a new rank-two nonnegative matrix factorizations (NMF) algorithm is used to split the clusters, which is…

Computer Vision and Pattern Recognition · Computer Science 2015-02-18 Nicolas Gillis , Da Kuang , Haesun Park

Referring image segmentation aims to segment the target referent in an image conditioning on a natural language expression. Existing one-stage methods employ per-pixel classification frameworks, which attempt straightforwardly to align…

Computer Vision and Pattern Recognition · Computer Science 2023-09-06 Jiajin Tang , Ge Zheng , Cheng Shi , Sibei Yang

Image processing is an important research area in computer vision. Image segmentation plays the vital rule in image processing research. There exist so many methods for image segmentation. Clustering is an unsupervised study. Clustering can…

Computer Vision and Pattern Recognition · Computer Science 2014-07-31 Dibya Jyoti Bora , Anil Kumar Gupta

Reliable 3D segmentation is critical for understanding complex scenes with dense layouts and multi-scale objects, as commonly seen in industrial environments. In such scenarios, heavy occlusion weakens geometric boundaries between objects,…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Yu Zhu , Naoya Chiba , Koichi Hashimoto

Semantic segmentation usually benefits from global contexts, fine localisation information, multi-scale features, etc. To advance Transformer-based segmenters with these aspects, we present a simple yet powerful semantic segmentation…

Computer Vision and Pattern Recognition · Computer Science 2022-12-07 Lihua Fu , Haoyue Tian , Xiangping Bryce Zhai , Pan Gao , Xiaojiang Peng

Transformers are widely used in computer vision areas and have achieved remarkable success. Most state-of-the-art approaches split images into regular grids and represent each grid region with a vision token. However, fixed token…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Wang Zeng , Sheng Jin , Lumin Xu , Wentao Liu , Chen Qian , Wanli Ouyang , Ping Luo , Xiaogang Wang

Piecewise constant image approximations of sequential number of segments or clusters of disconnected pixels are treated. The method of majorizing of optimal approximation sequence by hierarchical sequence of image approximations is…

Computer Vision and Pattern Recognition · Computer Science 2013-10-02 M. Kharinov

We propose Clustering Mask Transformer (CMT-DeepLab), a transformer-based framework for panoptic segmentation designed around clustering. It rethinks the existing transformer architectures used in segmentation and detection; CMT-DeepLab…

Computer Vision and Pattern Recognition · Computer Science 2022-06-22 Qihang Yu , Huiyu Wang , Dahun Kim , Siyuan Qiao , Maxwell Collins , Yukun Zhu , Hartwig Adam , Alan Yuille , Liang-Chieh Chen

Image segmentation is the process of partitioning an image into a set of meaningful regions according to some criteria. Hierarchical segmentation has emerged as a major trend in this regard as it favors the emergence of important regions at…

Computer Vision and Pattern Recognition · Computer Science 2017-03-10 Amin Fehri , Santiago Velasco-Forero , Fernand Meyer