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Local feature extraction is a standard approach in computer vision for tackling important tasks such as image matching and retrieval. The core assumption of most methods is that images undergo affine transformations, disregarding more…

计算机视觉与模式识别 · 计算机科学 2023-04-04 Guilherme Potje , Felipe Cadar , Andre Araujo , Renato Martins , Erickson R. Nascimento

Diffusion generative modeling has become a promising approach for learning robotic manipulation tasks from stochastic human demonstrations. In this paper, we present Diffusion-EDFs, a novel SE(3)-equivariant diffusion-based approach for…

Scene flow enables an understanding of the motion characteristics of the environment in the 3D world. It gains particular significance in the long-range, where object-based perception methods might fail due to sparse observations far away.…

计算机视觉与模式识别 · 计算机科学 2025-01-30 Ajinkya Khoche , Qingwen Zhang , Laura Pereira Sanchez , Aron Asefaw , Sina Sharif Mansouri , Patric Jensfelt

Learning from limited data is challenging because data scarcity leads to a poor generalization of the trained model. A classical global pooled representation will probably lose useful local information. Many few-shot learning methods have…

计算机视觉与模式识别 · 计算机科学 2023-05-11 Haoxing Chen , Huaxiong Li , Yaohui Li , Chunlin Chen

Recently, style transfer is a research area that attracts a lot of attention, which transfers the style of an image onto a content target. Extensive research on style transfer has aimed at speeding up processing or generating high-quality…

计算机视觉与模式识别 · 计算机科学 2022-05-26 Son Truong Nguyen , Nguyen Quang Tuyen , Nguyen Hong Phuc

In this paper, we address the task of aberration-aware depth-from-defocus (DfD), which takes account of spatially variant point spread functions (PSFs) of a real camera. To effectively obtain the spatially variant PSFs of a real camera…

计算机视觉与模式识别 · 计算机科学 2024-02-29 Zhuofeng Wu , Yusuke Monno , Masatoshi Okutomi

In this paper, we study the problem of 3D scene geometry decomposition and manipulation from 2D views. By leveraging the recent implicit neural representation techniques, particularly the appealing neural radiance fields, we introduce an…

计算机视觉与模式识别 · 计算机科学 2023-03-13 Bing Wang , Lu Chen , Bo Yang

We are seeing a Cambrian explosion of 3D shape representations for use in machine learning. Some representations seek high expressive power in capturing high-resolution detail. Other approaches seek to represent shapes as compositions of…

计算机视觉与模式识别 · 计算机科学 2020-04-07 Zekun Hao , Hadar Averbuch-Elor , Noah Snavely , Serge Belongie

Latent representations are critical for the performance and robustness of machine learning models, as they encode the essential features of data in a compact and informative manner. However, in vision tasks, these representations are often…

机器学习 · 计算机科学 2025-10-03 Bruno Corcuera , Carlos Eiras-Franco , Brais Cancela

Modern cameras with large apertures often suffer from a shallow depth of field, resulting in blurry images of objects outside the focal plane. This limitation is particularly problematic for fixed-focus cameras, such as those used in smart…

计算机视觉与模式识别 · 计算机科学 2025-10-28 Xinge Yang , Chuong Nguyen , Wenbin Wang , Kaizhang Kang , Wolfgang Heidrich , Xiaoxing Li

This paper proposes ShapeShifter, a new 3D generative model that learns to synthesize shape variations based on a single reference model. While generative methods for 3D objects have recently attracted much attention, current techniques…

计算机视觉与模式识别 · 计算机科学 2025-03-18 Nissim Maruani , Wang Yifan , Matthew Fisher , Pierre Alliez , Mathieu Desbrun

Novel view synthesis via Neural Radiance Fields (NeRFs) or 3D Gaussian Splatting (3DGS) typically necessitates dense observations with hundreds of input images to circumvent artifacts. We introduce Deceptive-NeRF/3DGS to enhance sparse-view…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Xinhang Liu , Jiaben Chen , Shiu-hong Kao , Yu-Wing Tai , Chi-Keung Tang

Functional grasping is essential for humans to perform specific tasks, such as grasping scissors by the finger holes to cut materials or by the blade to safely hand them over. Enabling dexterous robot hands with functional grasping…

机器人学 · 计算机科学 2024-11-27 Linyi Huang , Hui Zhang , Zijian Wu , Sammy Christen , Jie Song

3D Gaussian Splatting (3DGS) has emerged as a promising approach for 3D scene representation, offering a reduction in computational overhead compared to Neural Radiance Fields (NeRF). However, 3DGS is susceptible to high-frequency artifacts…

计算机视觉与模式识别 · 计算机科学 2024-09-06 Shen Chen , Jiale Zhou , Lei Li

With diverse presentation forgery methods emerging continually, detecting the authenticity of images has drawn growing attention. Although existing methods have achieved impressive accuracy in training dataset detection, they still perform…

计算机视觉与模式识别 · 计算机科学 2024-03-20 Yingxin Lai , Guoqing Yang Yifan He , Zhiming Luo , Shaozi Li

We present PoseDiff, a conditional diffusion model that unifies robot state estimation and control within a single framework. At its core, PoseDiff maps raw visual observations into structured robot states-such as 3D keypoints or joint…

机器人学 · 计算机科学 2025-11-03 Haozhuo Zhang , Michele Caprio , Jing Shao , Qiang Zhang , Jian Tang , Shanghang Zhang , Wei Pan

Robotic automation in surgery requires precise tracking of surgical tools and mapping of deformable tissue. Previous works on surgical perception frameworks require significant effort in developing features for surgical tool and tissue…

机器人学 · 计算机科学 2021-03-26 Jingpei Lu , Ambareesh Jayakumari , Florian Richter , Yang Li , Michael C. Yip

Remote sensing image captioning aims to generate semantically accurate descriptions that are closely linked to the visual features of remote sensing images. Existing approaches typically emphasize fine-grained extraction of visual features…

计算机视觉与模式识别 · 计算机科学 2025-04-01 Maofu Liu , Jiahui Liu , Xiaokang Zhang

Based on point spread function (PSF) engineering and astigmatism due to a pair of cylindrical lenses, a novel compressed imaging mechanism is proposed to achieve single-shot incoherent 3D imaging. The speckle-like PSF of the imaging system…

光学 · 物理学 2021-05-24 Qiong Gao , Weidong Qu , Ming Shao , Wei Liu , Xiangzheng Cheng

Non-uniformed 3D sparse data, e.g., point clouds or voxels in different spatial positions, make contribution to the task of 3D object detection in different ways. Existing basic components in sparse convolutional networks (Sparse CNNs)…

计算机视觉与模式识别 · 计算机科学 2022-04-27 Yukang Chen , Yanwei Li , Xiangyu Zhang , Jian Sun , Jiaya Jia