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Dynamic and static components in scenes often exhibit distinct properties, yet most 4D reconstruction methods treat them indiscriminately, leading to suboptimal performance in both cases. This work introduces SDD-4DGS, the first framework…

计算机视觉与模式识别 · 计算机科学 2025-03-13 Dai Sun , Huhao Guan , Kun Zhang , Xike Xie , S. Kevin Zhou

3D reconstruction of dynamic scenes is a long-standing problem in computer graphics and increasingly difficult the less information is available. Shape-from-Template (SfT) methods aim to reconstruct a template-based geometry from RGB images…

计算机视觉与模式识别 · 计算机科学 2024-04-16 David Stotko , Nils Wandel , Reinhard Klein

Reconstructing 3D shape from a single 2D image is a challenging task, which needs to estimate the detailed 3D structures based on the semantic attributes from 2D image. So far, most of the previous methods still struggle to extract semantic…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Xin Wen , Junsheng Zhou , Yu-Shen Liu , Zhen Dong , Zhizhong Han

X-ray Bragg coherent diffraction imaging has been demonstrated as a powerful three-dimensional (3D) microscopy approach for the investigation of sub-micrometer-scale crystalline particles. It is based on the measurement of a series of…

This comprehensive review examines the evolution and the current state of the art in three-dimensional (3D) reconstruction techniques in manufacturing applications. The analysis covers both traditional approaches and emerging deep learning…

计算机视觉与模式识别 · 计算机科学 2026-05-01 Chialoon Cheng , Kaijun liu , Zhiyang Liu , Marcelo H Ang

Unsigned distance fields (UDFs) provide a versatile framework for representing a diverse array of 3D shapes, encompassing both watertight and non-watertight geometries. Traditional UDF learning methods typically require extensive training…

计算机视觉与模式识别 · 计算机科学 2025-05-13 Jiangbei Hu , Yanggeng Li , Fei Hou , Junhui Hou , Zhebin Zhang , Shengfa Wang , Na Lei , Ying He

Radiography is often used to probe complex, evolving density fields in dynamic systems and in so doing gain insight into the underlying physics. This technique has been used in numerous fields including materials science, shock physics,…

Reconstructing a 3D Stereo-lithography (STL) Model from 2D Contours of scanned structure in Digital Imaging and Communication in Medicine (DICOM) images is crucial to understand the geometry and deformity. Computed Tomography (CT) images…

图像与视频处理 · 电气工程与系统科学 2026-01-22 K. Punnam Chandar , Y. Ravi Kumar

Accurate three-dimensional (3D) reconstruction of guidewire shapes is crucial for precise navigation in robot-assisted endovascular interventions. Conventional 2D Digital Subtraction Angiography (DSA) is limited by the absence of depth…

机器人学 · 计算机科学 2025-06-30 Tianliang Yao , Bingrui Li , Bo Lu , Zhiqiang Pei , Yixuan Yuan , Peng Qi

Current 3D mesh steganography algorithms relying on geometric modification are prone to detection by steganalyzers. In traditional steganography, adaptive steganography has proven to be an efficient means of enhancing steganography…

多媒体 · 计算机科学 2025-10-29 Yushu Zhang , Jiahao Zhu , Mignfu Xue , Xinpeng Zhang , Xiaochun Cao

Coherent X-ray beams with energies $\geq 50$ keV can potentially enable three-dimensional imaging of atomic lattice distortion fields within individual crystallites in bulk polycrystalline materials through Bragg coherent diffraction…

Plant phenotyping plays a pivotal role in understanding plant traits and their interactions with the environment, making it crucial for advancing precision agriculture and crop improvement. 3D reconstruction technologies have emerged as…

图像与视频处理 · 电气工程与系统科学 2025-05-05 Jiajia Li , Xinda Qi , Seyed Hamidreza Nabaei , Meiqi Liu , Dong Chen , Xin Zhang , Xunyuan Yin , Zhaojian Li

We present a fast iterative FFT-based reconstruction algorithm that allows for non- parallel redshift-space distortions (RSD). We test our algorithm on both N-body dark matter simulations and mock distributions of galaxies designed to…

宇宙学与河外天体物理 · 物理学 2015-08-17 Angela Burden , Will J. Percival , Cullan Howlett

We present a novel method for efficiently producing semi-dense matches across images. Previous detector-free matcher LoFTR has shown remarkable matching capability in handling large-viewpoint change and texture-poor scenarios but suffers…

计算机视觉与模式识别 · 计算机科学 2024-03-13 Yifan Wang , Xingyi He , Sida Peng , Dongli Tan , Xiaowei Zhou

In this work, issues in phase retrieval in the coherent diffractive imaging (CDI) technique, from discussion on parameters for setting up a CDI experiment to evaluation of the goodness of the final reconstruction, are discussed. The…

光学 · 物理学 2018-11-01 Tatiana Latychevskaia

Recovering the shape and appearance of real-world objects from natural 2D images is a long-standing and challenging inverse rendering problem. In this paper, we introduce a novel hybrid differentiable rendering method to efficiently…

计算机视觉与模式识别 · 计算机科学 2023-08-22 Xiangyang Zhu , Yiling Pan , Bailin Deng , Bin Wang

Accurate spatial correspondence between medical images is essential for longitudinal analysis, lesion tracking, and image-guided interventions. Medical image registration methods rely on local intensity-based similarity measures, which fail…

计算机视觉与模式识别 · 计算机科学 2026-02-24 Xingyu Zhang , Anna Reithmeir , Fryderyk Kögl , Rickmer Braren , Julia A. Schnabel , Daniel M. Lang

Phase retrieval, the problem of recovering lost phase information from measured intensity alone, is an inverse problem that is widely faced in various imaging modalities ranging from astronomy to nanoscale imaging. The current process of…

图像与视频处理 · 电气工程与系统科学 2024-06-12 Henry Chan , Youssef S. G. Nashed , Saugat Kandel , Stephan Hruszkewycz , Subramanian Sankaranarayanan , Ross J. Harder , Mathew J. Cherukara

The reconstruction of 3D microstructures from 2D slices is considered to hold significant value in predicting the spatial structure and physical properties of materials.The dimensional extension from 2D to 3D is viewed as a highly…

机器学习 · 计算机科学 2024-02-27 Yilin Zheng , Zhigong Song

In modern computer vision, the optimal representation of 3D shape continues to be task-dependent. One fundamental operation applied to such representations is differentiable rendering, as it enables inverse graphics approaches in learning…

计算机视觉与模式识别 · 计算机科学 2025-07-30 Tristan Aumentado-Armstrong , Stavros Tsogkas , Sven Dickinson , Allan Jepson