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Balancing fine-grained local modeling with long-range dependency capture under computational constraints remains a central challenge in sequence modeling. While Transformers provide strong token mixing, they suffer from quadratic…

机器学习 · 计算机科学 2026-03-20 Youjin Wang , Jiaqiao Zhao , Rong Fu , Run Zhou , Ruizhe Zhang , Jiani Liang , Suisuai Cao , Feng Zhou

Semantic segmentation of remote sensing imagery is a fundamental task in computer vision, supporting a wide range of applications such as land use classification, urban planning, and environmental monitoring. However, this task is often…

计算机视觉与模式识别 · 计算机科学 2025-09-26 Qinfeng Zhu , Han Li , Liang He , Lei Fan

Diffusion Models have become very popular for Semantic Image Synthesis (SIS) of human faces. Nevertheless, their training and inference is computationally expensive and their computational requirements are high due to the quadratic…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Filippo Botti , Alex Ergasti , Tomaso Fontanini , Claudio Ferrari , Massimo Bertozzi , Andrea Prati

Point cloud registration (PCR) is a fundamental task in 3D computer vision and robotics. Most learning-based PCR methods rely on Transformer architectures, which suffer from quadratic computational complexity. This limitation restricts the…

计算机视觉与模式识别 · 计算机科学 2026-04-07 Bingxi Liu , An Liu , Hao Chen , Huaqi Tao , Jinqiang Cui , Yiqun Wang , Hong Zhang

Upsampling LiDAR point clouds in autonomous driving scenarios remains a significant challenge due to the inherent sparsity and complex 3D structures of the data. Recent studies have attempted to address this problem by converting the…

计算机视觉与模式识别 · 计算机科学 2025-07-24 Chuang Chen , Xiaolin Qin , Jing Hu , Wenyi Ge

Point cloud completion aims to reconstruct complete 3D shapes from partial observations, which is a challenging problem due to severe occlusions and missing geometry. Despite recent advances in multimodal techniques that leverage…

计算机视觉与模式识别 · 计算机科学 2025-12-02 Wang Luo , Di Wu , Hengyuan Na , Yinlin Zhu , Miao Hu , Guocong Quan

Semantic shape completion is a challenging problem in 3D computer vision where the task is to generate a complete 3D shape using a partial 3D shape as input. We propose a learning-based approach to complete incomplete 3D shapes through…

计算机视觉与模式识别 · 计算机科学 2018-10-02 Swaminathan Gurumurthy , Shubham Agrawal

U-shaped architectures have long dominated the field of medical image segmentation, while Transformers are widely employed for modeling long-range dependencies. The former typically handles scale variations implicitly by aggregating…

计算机视觉与模式识别 · 计算机科学 2026-05-12 Yanhua Zhang , Ke Zhang , Jingyu Wang , Gabriella Balestra , Samanta Rosati , Yulin Wu , Wuwei Wang , Valentina Giannini

Joint compression of point cloud geometry and attributes is essential for efficient 3D data representation. Existing methods often rely on post-hoc recoloring procedures and manually tuned bitrate allocation between geometry and attribute…

图像与视频处理 · 电气工程与系统科学 2025-12-30 Kai-Hsiang Hsieh , Monyneath Yim , Wen-Hsiao Peng , Jui-Chiu Chiang

In this paper, we tackle the challenging problem of point cloud completion from the perspective of feature learning. Our key observation is that to recover the underlying structures as well as surface details, given partial input, a…

计算机视觉与模式识别 · 计算机科学 2022-09-15 Zejia Su , Haibin Huang , Chongyang Ma , Hui Huang , Ruizhen Hu

The reconstruction of real-world surfaces is on high demand in various applications. Most existing reconstruction approaches apply 3D scanners for creating point clouds which are generally sparse and of low density. These points clouds will…

计算机视觉与模式识别 · 计算机科学 2021-03-01 Rajat Sharma , Tobias Schwandt , Christian Kunert , Steffen Urban , Wolfgang Broll

Conventional methods for point cloud completion, typically trained on synthetic datasets, face significant challenges when applied to out-of-distribution real-world scans. In this paper, we propose an effective yet simple source-free domain…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Xing He , Zhe Zhu , Liangliang Nan , Honghua Chen , Jing Qin , Mingqiang Wei

Depth completion, aiming to predict dense depth maps from sparse depth measurements, plays a crucial role in many computer vision related applications. Deep learning approaches have demonstrated overwhelming success in this task. However,…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Yu Cai , Tianyu Shen , Shi-Sheng Huang , Hua Huang

Point clouds are a fundamental 3D data representation that underpins various computer vision tasks. Recently, Mamba has demonstrated strong potential for 3D point cloud understanding. However, existing approaches primarily focus on point…

计算机视觉与模式识别 · 计算机科学 2026-01-21 Bin Liu , Chunyang Wang , Xuelian Liu

Recent progress of semantic point clouds analysis is largely driven by synthetic data (e.g., the ModelNet and the ShapeNet), which are typically complete, well-aligned and noisy free. Therefore, representations of those ideal synthetic…

计算机视觉与模式识别 · 计算机科学 2024-09-12 Li Yu , Hongchao Zhong , Longkun Zou , Ke Chen , Pan Gao

Visual Geometry Grounded Transformers (VGGT) have set new benchmarks in high-fidelity 3D scene reconstruction. However, as the sequence length increases, these models suffer from catastrophic geometric forgetting and accumulation drift,…

计算机视觉与模式识别 · 计算机科学 2026-05-19 Tianchen Deng , Zhenxiang Xiong , Nailin Wang , Fangjinhua Wang , Jiuming Liu , Jianfei Yang , Hesheng Wang

The goal of style transfer is, given a content image and a style source, generating a new image preserving the content but with the artistic representation of the style source. Most of the state-of-the-art architectures use transformers or…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Filippo Botti , Alex Ergasti , Leonardo Rossi , Tomaso Fontanini , Claudio Ferrari , Massimo Bertozzi , Andrea Prati

Spatio-temporal video prediction plays a pivotal role in critical domains, ranging from weather forecasting to industrial automation. However, in high-precision industrial scenarios such as semiconductor manufacturing, the absence of…

计算机视觉与模式识别 · 计算机科学 2025-07-10 Xinyu Xie , Weifeng Cao , Jun Shi , Yangyang Hu , Hui Liang , Wanyong Liang , Xiaoliang Qian

Diffusion models have emerged as the new state-of-the-art generative model with high quality samples, with intriguing properties such as mode coverage and high flexibility. They have also been shown to be effective inverse problem solvers,…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Hyungjin Chung , Dohoon Ryu , Michael T. McCann , Marc L. Klasky , Jong Chul Ye

Single-view point cloud completion aims to recover the full geometry of an object based on only limited observation, which is extremely hard due to the data sparsity and occlusion. The core challenge is to generate plausible geometries to…

计算机视觉与模式识别 · 计算机科学 2022-10-05 Bowen Zhang , Xi Zhao , He Wang , Ruizhen Hu