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Adversarial attacks hamper the functionality and accuracy of Deep Neural Networks (DNNs) by meddling with subtle perturbations to their inputs.In this work, we propose a new Mask-based Adversarial Defense scheme (MAD) for DNNs to mitigate…

机器学习 · 计算机科学 2022-04-27 Weizhen Xu , Chenyi Zhang , Fangzhen Zhao , Liangda Fang

Visual odometry (VO) and SLAM have been using multi-view geometry via local structure from motion for decades. These methods have a slight disadvantage in challenging scenarios such as low-texture images, dynamic scenarios, etc. Meanwhile,…

计算机视觉与模式识别 · 计算机科学 2023-09-11 Akankshya Kar , Sajal Maheshwari , Shamit Lal , Vinay Sameer Raja Kad

The recent proliferation of 3D content that can be consumed on hand-held devices necessitates efficient tools for transmitting large geometric data, e.g., 3D meshes, over the Internet. Detailed high-resolution assets can pose a challenge to…

计算机视觉与模式识别 · 计算机科学 2023-08-11 Yun-Chun Chen , Vladimir G. Kim , Noam Aigerman , Alec Jacobson

We propose a new method for realistic human motion transfer using a generative adversarial network (GAN), which generates a motion video of a target character imitating actions of a source character, while maintaining high authenticity of…

图形学 · 计算机科学 2023-05-09 Yang-Tian Sun , Qian-Cheng Fu , Yue-Ren Jiang , Zitao Liu , Yu-Kun Lai , Hongbo Fu , Lin Gao

Autoregressive (AR) models have garnered significant attention in image generation for their ability to effectively capture both local and global structures within visual data. However, prevalent AR models predominantly rely on the…

计算机视觉与模式识别 · 计算机科学 2025-07-03 Yuxin Mao , Zhen Qin , Jinxing Zhou , Hui Deng , Xuyang Shen , Bin Fan , Jing Zhang , Yiran Zhong , Yuchao Dai

Neural implicit representations, including Neural Distance Fields and Neural Radiance Fields, have demonstrated significant capabilities for reconstructing surfaces with complicated geometry and topology, and generating novel views of a…

图形学 · 计算机科学 2024-02-08 Lin Gao , Jie Yang , Bo-Tao Zhang , Jia-Mu Sun , Yu-Jie Yuan , Hongbo Fu , Yu-Kun Lai

Mesh is an important and powerful type of data for 3D shapes and widely studied in the field of computer vision and computer graphics. Regarding the task of 3D shape representation, there have been extensive research efforts concentrating…

计算机视觉与模式识别 · 计算机科学 2018-11-29 Yutong Feng , Yifan Feng , Haoxuan You , Xibin Zhao , Yue Gao

Reconstructing a 3D hand mesh from a single RGB image is challenging due to complex articulations, self-occlusions, and depth ambiguities. Traditional discriminative methods, which learn a deterministic mapping from a 2D image to a single…

计算机视觉与模式识别 · 计算机科学 2025-03-20 Muhammad Usama Saleem , Ekkasit Pinyoanuntapong , Mayur Jagdishbhai Patel , Hongfei Xue , Ahmed Helmy , Srijan Das , Pu Wang

We present MeshLLM, a novel framework that leverages large language models (LLMs) to understand and generate text-serialized 3D meshes. Our approach addresses key limitations in existing methods, including the limited dataset scale when…

We study the problem of 3D object generation. We propose a novel framework, namely 3D Generative Adversarial Network (3D-GAN), which generates 3D objects from a probabilistic space by leveraging recent advances in volumetric convolutional…

计算机视觉与模式识别 · 计算机科学 2017-01-05 Jiajun Wu , Chengkai Zhang , Tianfan Xue , William T. Freeman , Joshua B. Tenenbaum

Meshes are ubiquitous in visual computing and simulation, yet most existing machine learning techniques represent meshes only indirectly, e.g. as the level set of a scalar field or deformation of a template, or as a disordered triangle soup…

计算机视觉与模式识别 · 计算机科学 2025-02-12 Tianchang Shen , Zhaoshuo Li , Marc Law , Matan Atzmon , Sanja Fidler , James Lucas , Jun Gao , Nicholas Sharp

Generative adversarial networks, which can generate metasurfaces based on a training set of high performance device layouts, have the potential to significantly reduce the computational cost of the metasurface design process. However, basic…

计算物理 · 物理学 2019-12-03 Fufang Wen , Jiaqi Jiang , Jonathan A. Fan

3D laser scanning by LiDAR sensors plays an important role for mobile robots to understand their surroundings. Nevertheless, not all systems have high resolution and accuracy due to hardware limitations, weather conditions, and so on.…

计算机视觉与模式识别 · 计算机科学 2021-08-03 Kazuto Nakashima , Ryo Kurazume

There remains an important need for the development of image reconstruction methods that can produce diagnostically useful images from undersampled measurements. In magnetic resonance imaging (MRI), for example, such methods can facilitate…

图像与视频处理 · 电气工程与系统科学 2021-06-28 Varun A. Kelkar , Sayantan Bhadra , Mark A. Anastasio

As many other machine learning driven medical image analysis tasks, skin image analysis suffers from a chronic lack of labeled data and skewed class distributions, which poses problems for the training of robust and well-generalizing…

计算机视觉与模式识别 · 计算机科学 2018-09-07 Christoph Baur , Shadi Albarqouni , Nassir Navab

We introduce OpenShape, a method for learning multi-modal joint representations of text, image, and point clouds. We adopt the commonly used multi-modal contrastive learning framework for representation alignment, but with a specific focus…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Minghua Liu , Ruoxi Shi , Kaiming Kuang , Yinhao Zhu , Xuanlin Li , Shizhong Han , Hong Cai , Fatih Porikli , Hao Su

One challenge that remains open in 3D deep learning is how to efficiently represent 3D data to feed deep networks. Recent works have relied on volumetric or point cloud representations, but such approaches suffer from a number of issues…

计算机视觉与模式识别 · 计算机科学 2019-01-25 Jhony K. Pontes , Chen Kong , Sridha Sridharan , Simon Lucey , Anders Eriksson , Clinton Fookes

Implicit neural representations map a shape-specific latent code and a 3D coordinate to its corresponding signed distance (SDF) value. However, this approach only offers a single level of detail. Emulating low levels of detail can be…

计算机视觉与模式识别 · 计算机科学 2024-09-11 Benoit Guillard , Marc Habermann , Christian Theobalt , Pascal Fua

This paper presents DetailFlow, a coarse-to-fine 1D autoregressive (AR) image generation method that models images through a novel next-detail prediction strategy. By learning a resolution-aware token sequence supervised with progressively…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Yiheng Liu , Liao Qu , Huichao Zhang , Xu Wang , Yi Jiang , Yiming Gao , Hu Ye , Xian Li , Shuai Wang , Daniel K. Du , Fangmin Chen , Zehuan Yuan , Xinglong Wu

Identifying the key microstructure representations is crucial for Computational Materials Design (CMD). However, existing microstructure characterization and reconstruction (MCR) techniques have limitations to be applied for materials…

材料科学 · 物理学 2019-01-07 Zijiang Yang , Xiaolin Li , L. Catherine Brinson , Alok N. Choudhary , Wei Chen , Ankit Agrawal