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In computer vision and image processing tasks, image fusion has evolved into an attractive research field. However, recent existing image fusion methods are mostly built on pixel-level operations, which may produce unacceptable artifacts…

计算机视觉与模式识别 · 计算机科学 2019-05-29 Lihua Jian , Xiaomin Yang , Zheng Liu , Gwanggil Jeon , Mingliang Gao , David Chisholm

Deep neural networks, particularly those employing Rectified Linear Units (ReLU), are often perceived as complex, high-dimensional, non-linear systems. This complexity poses a significant challenge to understanding their internal learning…

机器学习 · 计算机科学 2025-11-11 Longqing Ye

3D Gaussian Splatting (3DGS) has recently emerged as a powerful paradigm for photorealistic view synthesis, representing scenes with spatially distributed Gaussian primitives. While highly effective for rendering, achieving accurate and…

计算机视觉与模式识别 · 计算机科学 2025-09-23 Wenzhi Guo , Bing Wang

We generalize the interpolative separable density fitting (ISDF) method, used for compressing the four-index electron repulsion integral (ERI) tensor, to incorporate adaptive real space grids for potentially highly localized single-particle…

计算物理 · 物理学 2026-02-17 Hai Zhu , Chia-Nan Yeh , Miguel A. Morales , Leslie Greengard , Shidong Jiang , Jason Kaye

Compositional implicit surface representations model scenes as collections of objects, each encoded by a Signed Distance Field (SDF). A fundamental limitation of this approach is that multiple SDFs can produce geometries that…

计算机视觉与模式识别 · 计算机科学 2026-05-29 Deniz Sayin Mercadier , Federico Stella , Aurel Bizeau , Nicolas Talabot , Pascal Fua

This paper presents a high-efficiency, CPU-only volumetric mapping framework based on a Truncated Signed Distance Field (TSDF). The system incrementally fuses raw LiDAR point-cloud data into a voxel grid using a directional bitmask-based…

机器人学 · 计算机科学 2025-09-25 Jose E. Maese , Luis Merino , Fernando Caballero

We propose a novel architecture called MLP-SRGAN, which is a single-dimension Super Resolution Generative Adversarial Network (SRGAN) that utilizes Multi-Layer Perceptron Mixers (MLP-Mixers) along with convolutional layers to upsample in…

计算机视觉与模式识别 · 计算机科学 2025-09-08 Samir Mitha , Seungho Choe , Pejman Jahbedar Maralani , Alan R. Moody , April Khademi

In this paper, we introduce a technique to estimate measured BRDFs from a sparse set of samples. Our approach offers accurate BRDF reconstructions that are generalizable to new materials. This opens the door to BDRF reconstructions from a…

Unsupervised remote sensing change detection aims to monitor and analyze changes from multi-temporal remote sensing images in the same geometric region at different times, without the need for labeled training data. Previous unsupervised…

计算机视觉与模式识别 · 计算机科学 2025-11-13 Yating Liu , Yan Lu

We propose a novel method to reconstruct the 3D shapes of transparent objects using hand-held captured images under natural light conditions. It combines the advantage of explicit mesh and multi-layer perceptron (MLP) network, a hybrid…

计算机视觉与模式识别 · 计算机科学 2023-03-30 Jiamin Xu , Zihan Zhu , Hujun Bao , Weiwei Xu

There are still two problems in SDD causing some inaccurate results: (1) In the process of feature extraction, with the layer-by-layer acquisition of semantic information, local information is gradually lost, resulting into less…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Aisha Chandio , Gong Gui , Teerath Kumar , Irfan Ullah , Ramin Ranjbarzadeh , Arunabha M Roy , Akhtar Hussain , Yao Shen

We present LoD-NeuS, an efficient neural representation for high-frequency geometry detail recovery and anti-aliased novel view rendering. Drawing inspiration from voxel-based representations with the level of detail (LoD), we introduce a…

计算机视觉与模式识别 · 计算机科学 2023-09-20 Yiyu Zhuang , Qi Zhang , Ying Feng , Hao Zhu , Yao Yao , Xiaoyu Li , Yan-Pei Cao , Ying Shan , Xun Cao

Despite recent advances in reconstructing an organic model with the neural signed distance function (SDF), the high-fidelity reconstruction of a CAD model directly from low-quality unoriented point clouds remains a significant challenge. In…

计算机视觉与模式识别 · 计算机科学 2024-04-23 Qiujie Dong , Rui Xu , Pengfei Wang , Shuangmin Chen , Shiqing Xin , Xiaohong Jia , Wenping Wang , Changhe Tu

Recent advances in computer graphics and computer vision have found successful application of deep neural network models for 3D shapes based on signed distance functions (SDFs) that are useful for shape representation, retrieval, and…

计算机视觉与模式识别 · 计算机科学 2020-10-27 Oladapo Afolabi , Allen Y. Yang , S. Shankar Sastry

Remote sensing (RS) image-text retrieval plays a critical role in understanding massive RS imagery. However, the dense multi-object distribution and complex backgrounds in RS imagery make it difficult to simultaneously achieve fine-grained…

计算机视觉与模式识别 · 计算机科学 2026-04-23 Xi Chen , Xu Chen , Xiangyang Jia , Xu Zhang , Shuquan Wei , Wei Wang

Multi-exposure image fusion (MEF) has emerged as a prominent solution to address the limitations of digital imaging in representing varied exposure levels. Despite its advancements, the field grapples with challenges, notably the reliance…

计算机视觉与模式识别 · 计算机科学 2023-09-06 Guanyao Wu , Hongming Fu , Jinyuan Liu , Long Ma , Xin Fan , Risheng Liu

Poor resolution of ultrasound images due to convolution of the tissue reflectivity function (TRF) with the system point spread function (PSF) is a major issue in medical ultrasound imaging. In this paper, we propose a correlation…

信号处理 · 电气工程与系统科学 2018-06-08 Jayanta Dey , Md. Kamrul Hasan

Plane Geometry Diagram Synthesis has been a crucial task in computer graphics, with applications ranging from educational tools to AI-driven mathematical reasoning. Traditionally, we rely on manual tools (e.g., Matplotlib and GeoGebra) to…

计算机视觉与模式识别 · 计算机科学 2025-11-05 Chengrui Zhang , Maizhen Ning , Tianyi Liu , Zihao Zhou , Jie Sun , Qiufeng Wang , Kaizhu Huang

Meshless methods are commonly used to determine numerical solutions to partial differential equations (PDEs) for problems involving free surfaces and/or complex geometries, approximating spatial derivatives at collocation points via local…

数值分析 · 数学 2025-10-24 H. Broadley , J. R. C. King , S. J. Lind

Controlled capture of real-world material appearance yields tabulated sets of highly realistic reflectance data. In practice, however, its high memory footprint requires compressing into a representation that can be used efficiently in…

图形学 · 计算机科学 2021-05-18 Alejandro Sztrajman , Gilles Rainer , Tobias Ritschel , Tim Weyrich