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Open-vocabulary segmentation of 3D scenes is a fundamental function of human perception and thus a crucial objective in computer vision research. However, this task is heavily impeded by the lack of large-scale and diverse 3D…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Kunhao Liu , Fangneng Zhan , Jiahui Zhang , Muyu Xu , Yingchen Yu , Abdulmotaleb El Saddik , Christian Theobalt , Eric Xing , Shijian Lu

Fine-tuning pre-trained vision-language models has emerged as a powerful approach for enhancing open-vocabulary semantic segmentation (OVSS). However, the substantial computational and resource demands associated with training on large…

Computer Vision and Pattern Recognition · Computer Science 2025-08-04 Qi Chen , Lingxiao Yang , Yun Chen , Nailong Zhao , Jianhuang Lai , Jie Shao , Xiaohua Xie

Open-vocabulary semantic segmentation (OVSS) aims to segment and recognize objects universally. Trained on extensive high-quality segmentation data, the segment anything model (SAM) has demonstrated remarkable universal segmentation…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Lin Chen , Yingjian Zhu , Qi Yang , Xin Niu , Kun Ding , Shiming Xiang

This paper addresses the task of semantic segmentation of orthoimagery using multimodal data e.g. optical RGB, infrared and digital surface model. We propose a deep convolutional neural network architecture termed OrthoSeg for semantic…

Computer Vision and Pattern Recognition · Computer Science 2018-11-21 Pankaj Bodani , Kumar Shreshtha , Shashikant Sharma

Sub-word segmentation is an essential pre-processing step for Neural Machine Translation (NMT). Existing work has shown that neural sub-word segmenters are better than Byte-Pair Encoding (BPE), however, they are inefficient as they require…

Computation and Language · Computer Science 2023-08-01 Haiyue Song , Raj Dabre , Chenhui Chu , Sadao Kurohashi , Eiichiro Sumita

Multimodal image fusion and semantic segmentation are critical for autonomous driving. Despite advancements, current models often struggle with segmenting densely packed elements due to a lack of comprehensive fusion features for guidance…

Computer Vision and Pattern Recognition · Computer Science 2025-06-25 Daixun Li , Weiying Xie , Mingxiang Cao , Yunke Wang , Yusi Zhang , Leyuan Fang , Yunsong Li , Chang Xu

While Contrastive Language-Image Pre-training (CLIP) has advanced open-vocabulary predictions, its performance on semantic segmentation remains suboptimal. This shortfall primarily stems from its spatial-invariant semantic features and…

Computer Vision and Pattern Recognition · Computer Science 2024-11-15 Yuheng Shi , Minjing Dong , Chang Xu

The performance of image segmentation models has historically been constrained by the high cost of collecting large-scale annotated data. The Segment Anything Model (SAM) alleviates this original problem through a promptable,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-04 Miguel Espinosa , Chenhongyi Yang , Linus Ericsson , Steven McDonagh , Elliot J. Crowley

Segmentation has emerged as a fundamental field of computer vision and natural language processing, which assigns a label to every pixel/feature to extract regions of interest from an image/text. To evaluate the performance of segmentation,…

Machine Learning · Statistics 2023-11-14 Ben Dai , Chunlin Li

We propose OpenVoxel, a training-free algorithm for grouping and captioning sparse voxels for the open-vocabulary 3D scene understanding tasks. Given the sparse voxel rasterization (SVR) model obtained from multi-view images of a 3D scene,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-15 Sheng-Yu Huang , Jaesung Choe , Yu-Chiang Frank Wang , Cheng Sun

Semantic segmentation is a crucial task in computer vision, where each pixel in an image is classified into a category. However, traditional methods face significant challenges, including the need for pixel-level annotations and extensive…

Computer Vision and Pattern Recognition · Computer Science 2024-03-19 Yasufumi Kawano , Yoshimitsu Aoki

Recently, deep learning algorithms, especially fully convolutional network based methods, are becoming very popular in the field of remote sensing. However, these methods are implemented and evaluated through various datasets and deep…

Computer Vision and Pattern Recognition · Computer Science 2018-09-17 Guangming Wu , Zhiling Guo

Visual-textual correlations in the attention maps derived from text-to-image diffusion models are proven beneficial to dense visual prediction tasks, e.g., semantic segmentation. However, a significant challenge arises due to the input…

Computer Vision and Pattern Recognition · Computer Science 2025-01-06 Jiayi Lin , Jiabo Huang , Jian Hu , Shaogang Gong

Current methods for developing foundation models in medical image segmentation rely on two primary assumptions: a fixed set of classes and the immediate availability of a substantial and diverse training dataset. However, this can be…

Computer Vision and Pattern Recognition · Computer Science 2024-05-28 Xiaoyang Chen , Hao Zheng , Yifang Xie , Yuncong Ma , Tengfei Li

Recently, Vision-Language Models (VLMs) have advanced segmentation techniques by shifting from the traditional segmentation of a closed-set of predefined object classes to open-vocabulary segmentation (OVS), allowing users to segment novel…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Gonca Yilmaz , Songyou Peng , Marc Pollefeys , Francis Engelmann , Hermann Blum

Open-vocabulary image semantic segmentation (OVS) seeks to segment images into semantic regions across an open set of categories. Existing OVS methods commonly depend on foundational vision-language models and utilize similarity computation…

Computer Vision and Pattern Recognition · Computer Science 2024-09-13 Qinglong Cao , Yuntian Chen , Chao Ma , Xiaokang Yang

Unsupervised semantic segmentation is a challenging task that segments images into semantic groups without manual annotation. Prior works have primarily focused on leveraging prior knowledge of semantic consistency or priori concepts from…

Computer Vision and Pattern Recognition · Computer Science 2023-10-30 Mengcheng Lan , Xinjiang Wang , Yiping Ke , Jiaxing Xu , Litong Feng , Wayne Zhang

Open-Vocabulary Segmentation (OVS) aims to segment classes that are not present in the training dataset. However, most existing studies assume that the training data is fixed in advance, overlooking more practical scenarios where new…

Computer Vision and Pattern Recognition · Computer Science 2025-10-14 Dongjun Hwang , Yejin Kim , Minyoung Lee , Seong Joon Oh , Junsuk Choe

In this paper, we tackle an emerging computer vision task, open-vocabulary universal image segmentation, that aims to perform semantic/instance/panoptic segmentation (background semantic labeling + foreground instance segmentation) for…

Computer Vision and Pattern Recognition · Computer Science 2023-06-09 Zheng Ding , Jieke Wang , Zhuowen Tu

Recent advances in object segmentation have demonstrated that deep neural networks excel at object segmentation for specific classes in color and depth images. However, their performance is dictated by the number of classes and objects used…

Computer Vision and Pattern Recognition · Computer Science 2021-09-29 Chahat Deep Singh , Nitin J. Sanket , Chethan M. Parameshwara , Cornelia Fermüller , Yiannis Aloimonos