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Reference-driven image completion, which restores missing regions in a target view using additional images, is particularly challenging when the target view differs significantly from the references. Existing generative methods rely solely…

计算机视觉与模式识别 · 计算机科学 2025-10-06 Beibei Lin , Tingting Chen , Robby T. Tan

Latent diffusion models (LDMs) have demonstrated remarkable generative capabilities across various low-level vision tasks. However, their potential for point cloud completion remains underexplored due to the unstructured and irregular…

计算机视觉与模式识别 · 计算机科学 2025-09-30 Zijun Li , Hongyu Yan , Shijie Li , Kunming Luo , Li Lu , Xulei Yang , Weisi Lin

Convolutional neural networks and Transformer have made significant progresses in multi-modality medical image super-resolution. However, these methods either have a fixed receptive field for local learning or significant computational…

计算机视觉与模式识别 · 计算机科学 2025-04-15 Zexin Ji , Beiji Zou , Xiaoyan Kui , Sebastien Thureau , Su Ruan

Panoptic segmentation requires the simultaneous recognition of countable thing instances and amorphous stuff regions, placing joint demands on long-range context modelling, multi-scale feature representation, and efficient dense prediction.…

计算机视觉与模式识别 · 计算机科学 2026-05-20 Qing Cheng , Damiano Bertolini , Wei Zhang , Dong Wang , Niclas Zeller , Daniel Cremers

Reliable 3D object detection is fundamental to autonomous driving, and multimodal fusion algorithms using cameras and LiDAR remain a persistent challenge. Cameras provide dense visual cues but ill posed depth; LiDAR provides a precise 3D…

计算机视觉与模式识别 · 计算机科学 2026-02-13 Venkatraman Narayanan , Bala Sai , Rahul Ahuja , Pratik Likhar , Varun Ravi Kumar , Senthil Yogamani

To better address challenging issues of the irregularity and inhomogeneity inherently present in 3D point clouds, researchers have been shifting their focus from the design of hand-craft point feature towards the learning of 3D point…

计算机视觉与模式识别 · 计算机科学 2022-11-21 Xiang Li , Mingyang Wang , Congcong Wen , Lingjing Wang , Nan Zhou , Yi Fang

Point cloud completion aims to recover the complete shape based on a partial observation. Existing methods require either complete point clouds or multiple partial observations of the same object for learning. In contrast to previous…

计算机视觉与模式识别 · 计算机科学 2024-07-15 Ruikai Cui , Shi Qiu , Saeed Anwar , Jiawei Liu , Chaoyue Xing , Jing Zhang , Nick Barnes

Point clouds are a fundamental 3D representation in computer vision, enabling a wide range of perception tasks. However, real-world point clouds often suffer from degradations such as incompleteness, noise, outliers, and irregular density,…

计算机视觉与模式识别 · 计算机科学 2026-05-26 Haoqing Wu , Alexa Nawotki , Jochen Garcke

Recently, research using point clouds has been increasing with the development of 3D scanner technology. According to this trend, the demand for high-quality point clouds is increasing, but there is still a problem with the high cost of…

计算机视觉与模式识别 · 计算机科学 2022-08-24 Hyungjun Lee , Sejoon Lim

The rapid advances in deep learning have significantly enhanced the accuracy of multimodal 3D human pose estimation (HPE). However, the state-of-the-art (SOTA) HPE pipelines still rely on Transformers, whose quadratic complexity makes…

计算机视觉与模式识别 · 计算机科学 2026-05-13 Zepeng Yang , Junxuan Bai , Hao Li , Ju Dai , Junjun Pan , Yongfeng Yin , Bin Li

Point clouds captured in real-world applications are often incomplete due to the limited sensor resolution, single viewpoint, and occlusion. Therefore, recovering the complete point clouds from partial ones becomes an indispensable task in…

计算机视觉与模式识别 · 计算机科学 2021-08-20 Xumin Yu , Yongming Rao , Ziyi Wang , Zuyan Liu , Jiwen Lu , Jie Zhou

The Mamba architecture has been widely applied to various low-level vision tasks due to its exceptional adaptability and strong performance. Although the Mamba architecture has been adopted for spectral reconstruction, it still faces the…

计算机视觉与模式识别 · 计算机科学 2026-01-14 Yuze Zhang , Lingjie Li , Qiuzhen Lin , Zhong Ming , Fei Yu , Victor C. M. Leung

In this paper, we present a new method that reformulates point cloud completion as a set-to-set translation problem and design a new model, called PoinTr, which adopts a Transformer encoder-decoder architecture for point cloud completion.…

计算机视觉与模式识别 · 计算机科学 2023-01-12 Xumin Yu , Yongming Rao , Ziyi Wang , Jiwen Lu , Jie Zhou

Completing the whole 3D structure based on an incomplete point cloud is a challenging task, particularly when the residual point cloud lacks typical structural characteristics. Recent methods based on cross-modal learning attempt to…

计算机视觉与模式识别 · 计算机科学 2025-07-22 Hongye Hou , Liu Zhan , Yang Yang

Pan-sharpening aims to generate high-resolution multispectral (HRMS) images by integrating a high-resolution panchromatic (PAN) image with its corresponding low-resolution multispectral (MS) image. To achieve effective fusion, it is crucial…

计算机视觉与模式识别 · 计算机科学 2025-12-18 Yingying Wang , Xuanhua He , Chen Wu , Jialing Huang , Suiyun Zhang , Rui Liu , Xinghao Ding , Haoxuan Che

In scene text detection, Transformer-based methods have addressed the global feature extraction limitations inherent in traditional convolution neural network-based methods. However, most directly rely on native Transformer attention layers…

计算机视觉与模式识别 · 计算机科学 2025-12-09 Qiyan Zhao , Yue Yan , Da-Han Wang

Cross-modal alignment is crucial for multimodal representation fusion due to the inherent heterogeneity between modalities. While Transformer-based methods have shown promising results in modeling inter-modal relationships, their quadratic…

计算机视觉与模式识别 · 计算机科学 2024-12-03 Yan Li , Yifei Xing , Xiangyuan Lan , Xin Li , Haifeng Chen , Dongmei Jiang

Deep neural networks have achieved significant success in 3D point cloud classification while relying on large-scale, annotated point cloud datasets, which are labor-intensive to build. Compared to capturing data with LiDAR sensors and then…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Huantao Ren , Minmin Yang , Senem Velipasalar

We introduce a new diffusion-based approach for shape completion on 3D range scans. Compared with prior deterministic and probabilistic methods, we strike a balance between realism, multi-modality, and high fidelity. We propose DiffComplete…

计算机视觉与模式识别 · 计算机科学 2023-06-29 Ruihang Chu , Enze Xie , Shentong Mo , Zhenguo Li , Matthias Nießner , Chi-Wing Fu , Jiaya Jia

With the increased availability of 3D scanning technology, point clouds are moving into the focus of computer vision as a rich representation of everyday scenes. However, they are hard to handle for machine learning algorithms due to their…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Sergey Prokudin , Christoph Lassner , Javier Romero