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We present a novel approach for the reconstruction of dynamic geometric shapes using a single hand-held consumer-grade RGB-D sensor at real-time rates. Our method does not require a pre-defined shape template to start with and builds up the…

计算机视觉与模式识别 · 计算机科学 2016-08-02 Matthias Innmann , Michael Zollhöfer , Matthias Nießner , Christian Theobalt , Marc Stamminger

In the Onsager model of one-component hard-particle systems, the entire phase behaviour is dictated by a function of relative orientation, which represents the amount of space excluded to one particle by another at this relative…

软凝聚态物质 · 物理学 2019-02-20 Jamie M. Taylor

Acquiring the virtual equivalent of exhibits, such as sculptures, in virtual reality (VR) museums, can be labour-intensive and sometimes infeasible. Deep learning based 3D reconstruction approaches allow us to recover 3D shapes from 2D…

计算机视觉与模式识别 · 计算机科学 2022-10-11 Ziyi Chang , George Alex Koulieris , Hubert P. H. Shum

Accurate volume estimation of objects from visual data is a long-standing challenge in computer vision with significant applications in robotics, logistics, and smart health. Existing methods often rely on complex 3D reconstruction…

计算机视觉与模式识别 · 计算机科学 2026-04-14 Gautham Vinod , Bruce Coburn , Siddeshwar Raghavan , Fengqing Zhu

Solving image-to-3D from a single view is an ill-posed problem, and current neural reconstruction methods addressing it through diffusion models still rely on scene-specific optimization, constraining their generalization capability. To…

计算机视觉与模式识别 · 计算机科学 2024-01-09 Christian Simon , Sen He , Juan-Manuel Perez-Rua , Mengmeng Xu , Amine Benhalloum , Tao Xiang

This paper proposes the use of an end-to-end Convolutional Neural Network for direct reconstruction of the 3D geometry of humans via volumetric regression. The proposed method does not require the fitting of a shape model and can be trained…

计算机视觉与模式识别 · 计算机科学 2018-09-12 Aaron S. Jackson , Chris Manafas , Georgios Tzimiropoulos

For non-rigid objects, predicting the 3D shape from 2D keypoint observations is ill-posed due to occlusions, and the need to disentangle changes in viewpoint and changes in shape. This challenge has often been addressed by embedding…

计算机视觉与模式识别 · 计算机科学 2025-04-29 Shalini Maiti , Lourdes Agapito , Benjamin Graham

We present a self-supervised learning-based pipeline for dense 3D reconstruction from full-length monocular endoscopic videos without a priori modeling of anatomy or shading. Our method only relies on unlabeled monocular endoscopic videos…

计算机视觉与模式识别 · 计算机科学 2019-09-10 Xingtong Liu , Ayushi Sinha , Masaru Ishii , Gregory D. Hager , Russell H. Taylor , Mathias Unberath

Though face rotation has achieved rapid progress in recent years, the lack of high-quality paired training data remains a great hurdle for existing methods. The current generative models heavily rely on datasets with multi-view images of…

计算机视觉与模式识别 · 计算机科学 2020-03-19 Hang Zhou , Jihao Liu , Ziwei Liu , Yu Liu , Xiaogang Wang

Ultrasound imaging is the most popular medical imaging modality for point-of-care bedside imaging. However, 2D ultrasound imaging provides only limited views of the organ of interest, making diagnosis challenging. To overcome this, 3D…

图像与视频处理 · 电气工程与系统科学 2023-02-17 Antony Jerald , A. N. Madhavanunni , Gayathri Malamal , Pisharody Harikrishnan Gopalakrishnan , Mahesh Raveendranatha Panicker

Aiming at inferring 3D shapes from 2D images, 3D shape reconstruction has drawn huge attention from researchers in computer vision and deep learning communities. However, it is not practical to assume that 2D input images and their…

计算机视觉与模式识别 · 计算机科学 2018-11-30 Yi-Lun Liao , Yao-Cheng Yang , Yu-Chiang Frank Wang

This paper introduces a deep neural network based method, i.e., DeepOrganNet, to generate and visualize high-fidelity 3D / 4D organ geometric models from single-view medical image in real time. Traditional 3D / 4D medical image…

图形学 · 计算机科学 2019-07-23 Yifan Wang , Zichun Zhong , Jing Hua

Convolutional Neural Networks (CNNs) have been recently employed to solve problems from both the computer vision and medical image analysis fields. Despite their popularity, most approaches are only able to process 2D images while most…

计算机视觉与模式识别 · 计算机科学 2016-06-16 Fausto Milletari , Nassir Navab , Seyed-Ahmad Ahmadi

Reconstructing deformable endoscopic tissues is crucial for achieving robot-assisted surgery. However, 3D Gaussian Splatting-based approaches encounter challenges in achieving consistent tissue surface reconstruction, while existing…

计算机视觉与模式识别 · 计算机科学 2026-02-25 Yangsen Chen , Hao Wang

Deep learning highly relies on the quantity of annotated data. However, the annotations for 3D volumetric medical data require experienced physicians to spend hours or even days for investigation. Self-supervised learning is a potential…

图像与视频处理 · 电气工程与系统科学 2020-07-20 Xing Tao , Yuexiang Li , Wenhui Zhou , Kai Ma , Yefeng Zheng

We present an approach for the planar surface reconstruction of a scene from images with limited overlap. This reconstruction task is challenging since it requires jointly reasoning about single image 3D reconstruction, correspondence…

计算机视觉与模式识别 · 计算机科学 2022-08-09 Samir Agarwala , Linyi Jin , Chris Rockwell , David F. Fouhey

Freehand 3D ultrasound enables volumetric imaging by tracking a conventional ultrasound probe during freehand scanning, offering enriched spatial information that improves clinical diagnosis. However, the quality of reconstructed volumes is…

图像与视频处理 · 电气工程与系统科学 2025-03-11 Sheng Song , Yiting Chen , Duo Xu , Songhan Ge , Yunqian Huang , Junni Shi , Man Chen , Hongbo Chen , Rui Zheng

Intraoperative shape reconstruction of organs from endoscopic camera images is a complex yet indispensable technique for image-guided surgery. To address the uncertainty in reconstructing entire shapes from single-viewpoint occluded images,…

计算机视觉与模式识别 · 计算机科学 2023-01-27 Tomoki Oya , Megumi Nakao , Tetsuya Matsuda

Purpose: To develop a framework to reconstruct large-scale volumetric dynamic MRI from rapid continuous and non-gated acquisitions, with applications to pulmonary and dynamic contrast enhanced (DCE) imaging. Theory and Methods: The problem…

We propose an approach to 3D reconstruction via inverse procedural modeling and investigate two variants of this approach. The first option consists in the fitting set of input parameters using a genetic algorithm. We demonstrate the…

图形学 · 计算机科学 2023-10-23 Albert Garifullin , Nikolay Maiorov , Vladimir Frolov