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In remote sensing images, complex backgrounds, weak object signals, and small object scales make accurate detection particularly challenging, especially under low-quality imaging conditions. A common strategy is to integrate single-image…

Computer Vision and Pattern Recognition · Computer Science 2026-01-21 Ruo Qi , Linhui Dai , Yusong Qin , Chaolei Yang , Yanshan Li

With the rapid development of spaceborne imaging techniques, object detection in optical remote sensing imagery has drawn much attention in recent decades. While many advanced works have been developed with powerful learning algorithms, the…

Computer Vision and Pattern Recognition · Computer Science 2019-12-19 Xin Wu , Danfeng Hong , Jiaojiao Tian , Jocelyn Chanussot , Wei Li , Ran Tao

This paper presents a novel training-free framework for open-vocabulary image segmentation and object recognition (OVSR), which leverages EfficientNetB0, a convolutional neural network, for unsupervised segmentation and CLIP, a…

Computer Vision and Pattern Recognition · Computer Science 2025-10-28 Ying Dai , Wei Yu Chen

Open-Vocabulary Segmentation (OVS) aims to segment image regions beyond predefined category sets by leveraging semantic descriptions. While CLIP based approaches excel in semantic generalization, they frequently lack the fine-grained…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Haoxi Zeng , Qiankun Liu , Yi Bin , Haiyue Zhang , Yujuan Ding , Guoqing Wang , Deqiang Ouyang , Heng Tao Shen

Accurate and high-fidelity driving scene reconstruction relies on fully leveraging scene information as conditioning. However, existing approaches, which primarily use 3D bounding boxes and binary maps for foreground and background control,…

Computer Vision and Pattern Recognition · Computer Science 2025-05-06 Haoteng Li , Zhao Yang , Zezhong Qian , Gongpeng Zhao , Yuqi Huang , Jun Yu , Huazheng Zhou , Longjun Liu

Open-Vocabulary Semantic Segmentation (OVSS) has advanced with recent vision-language models (VLMs), enabling segmentation beyond predefined categories through various learning schemes. Notably, training-free methods offer scalable, easily…

Computer Vision and Pattern Recognition · Computer Science 2025-04-08 Chanyoung Kim , Dayun Ju , Woojung Han , Ming-Hsuan Yang , Seong Jae Hwang

As a common method in the field of computer vision, spatial attention mechanism has been widely used in semantic segmentation of remote sensing images due to its outstanding long-range dependency modeling capability. However, remote sensing…

Image and Video Processing · Electrical Eng. & Systems 2025-01-24 Xiaowen Ma , Rongrong Lian , Zhenkai Wu , Renxiang Guan , Tingfeng Hong , Mengjiao Zhao , Mengting Ma , Jiangtao Nie , Zhenhong Du , Siyang Song , Wei Zhang

Open-vocabulary semantic segmentation (OVSS) aims to segment arbitrary category regions in images using open-vocabulary prompts, necessitating that existing methods possess pixel-level vision-language alignment capability. Typically, this…

Computer Vision and Pattern Recognition · Computer Science 2026-04-10 Jiahao Li , Yang Lu , Yachao Zhang , Fangyong Wang , Yuan Xie , Yanyun Qu

Benefiting from the inductive biases learned from large-scale datasets, open-vocabulary semantic segmentation (OVSS) leverages the power of vision-language models, such as CLIP, to achieve remarkable progress without requiring task-specific…

Computer Vision and Pattern Recognition · Computer Science 2025-12-09 Qiming Huang , Hao Ai , Jianbo Jiao

For an orthogonal frequency-division multiplexing (OFDM) system over a doubly selective (DS) channel, a large number of pilot subcarriers are needed to estimate the numerous channel parameters, resulting in low spectral efficiency. In this…

Signal Processing · Electrical Eng. & Systems 2020-05-05 Qibo Qin , Lin Gui , Bo Gong , Xiang Ren , Wen Chen

Remote sensing semantic segmentation must address both what the ground objects are within an image and where they are located. Consequently, segmentation models must ensure not only the semantic correctness of large-scale patches…

Computer Vision and Pattern Recognition · Computer Science 2026-01-28 Hao Wang , Keyan Hu , Xin Guo , Haifeng Li , Chao Tao

Semi-supervised remote sensing (RS) image semantic segmentation offers a promising solution to alleviate the burden of exhaustive annotation, yet it fundamentally struggles with pseudo-label drift, a phenomenon where confirmation bias leads…

Computer Vision and Pattern Recognition · Computer Science 2026-01-13 Yi Zhou , Xuechao Zou , Shun Zhang , Kai Li , Shiying Wang , Jingming Chen , Congyan Lang , Tengfei Cao , Pin Tao , Yuanchun Shi

Open-Vocabulary Semantic Segmentation (OVSS) assigns pixel-level labels from an open set of text-defined categories, demanding reliable generalization to unseen classes at inference. Although modern vision-language models (VLMs) support…

Computer Vision and Pattern Recognition · Computer Science 2026-03-23 Saikat Dutta , Biplab Banerjee , Hamid Rezatofighi

Referring Remote Sensing Image Segmentation (RRSIS) is a challenging task, aiming to segment specific target objects in remote sensing (RS) images based on a given language expression. Existing RRSIS methods typically employ coarse-grained…

Computer Vision and Pattern Recognition · Computer Science 2025-04-01 Maofu Liu , Xin Jiang , Xiaokang Zhang

Open-vocabulary semantic segmentation (OVSS) aims to segment objects from arbitrary text categories without requiring densely annotated datasets. Although contrastive learning based models enable zero-shot segmentation, they often lose fine…

Computer Vision and Pattern Recognition · Computer Science 2026-04-30 Huy Che , Vinh-Tiep Nguyen

Automatically segmenting objects from optical remote sensing images (ORSIs) is an important task. Most existing models are primarily based on either convolutional or Transformer features, each offering distinct advantages. Exploiting both…

Computer Vision and Pattern Recognition · Computer Science 2025-06-30 Yanguang Sun , Jiexi Yan , Jianjun Qian , Chunyan Xu , Jian Yang , Lei Luo

This work targets what we consider to be the foundational step for urban airborne robots, a safe landing. Our attention is directed toward what we deem the most crucial aspect of the safe landing perception stack: segmentation. We present a…

Robotics · Computer Science 2024-10-16 Haechan Mark Bong , Rongge Zhang , Ricardo de Azambuja , Giovanni Beltrame

Referring remote sensing image segmentation (RRSIS) is a novel visual task in remote sensing images segmentation, which aims to segment objects based on a given text description, with great significance in practical application. Previous…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Leideng Shi , Juan Zhang

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

Fine-grained high-resolution remote sensing mapping typically relies on localized visual features, which restricts cross-domain generalizability and often leads to fragmented predictions of large-scale land covers. While global geospatial…

Computer Vision and Pattern Recognition · Computer Science 2026-04-23 Jienan Lyu , Miao Yang , Jinchen Cai , Yiwen Hu , Guanyi Lu , Junhao Qiu , Runmin Dong