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We present an unsupervised learning approach to recover 3D human pose from 2D skeletal joints extracted from a single image. Our method does not require any multi-view image data, 3D skeletons, correspondences between 2D-3D points, or use…

计算机视觉与模式识别 · 计算机科学 2019-04-10 Ching-Hang Chen , Ambrish Tyagi , Amit Agrawal , Dylan Drover , Rohith MV , Stefan Stojanov , James M. Rehg

We present a method for fabricating general models with multi-directional 3D printing systems by printing different model regions along with different directions. The core of our method is a support-effective volume decomposition algorithm…

机器人学 · 计算机科学 2019-08-28 Chenming Wu , Chengkai Dai , Guoxin Fang , Yong-Jin Liu , Charlie C. L. Wang

This work proposes novel hyperparameter-free losses for single view 3D reconstruction with morphable models (3DMM). We dispense with the hyperparameters used in other works by exploiting geometry, so that the shape of the object and the…

计算机视觉与模式识别 · 计算机科学 2019-08-28 Eduard Ramon , Guillermo Ruiz , Thomas Batard , Xavier Giró-i-Nieto

Medical image retrieval is a valuable field for supporting clinical decision-making, yet current methods primarily support 2D images and require fully annotated queries, limiting clinical flexibility. To address this, we propose…

计算机视觉与模式识别 · 计算机科学 2025-07-14 Inye Na , Nejung Rue , Jiwon Chung , Hyunjin Park

We propose a novel approach for unsupervised 3D animation of non-rigid deformable objects. Our method learns the 3D structure and dynamics of objects solely from single-view RGB videos, and can decompose them into semantically meaningful…

计算机视觉与模式识别 · 计算机科学 2023-01-27 Aliaksandr Siarohin , Willi Menapace , Ivan Skorokhodov , Kyle Olszewski , Jian Ren , Hsin-Ying Lee , Menglei Chai , Sergey Tulyakov

We propose a deep learning method for 3D volumetric reconstruction in low-dose helical cone-beam computed tomography. Prior machine learning approaches require reference reconstructions computed by another algorithm for training. In…

图像与视频处理 · 电气工程与系统科学 2023-05-29 Onni Kosomaa , Samuli Laine , Tero Karras , Miika Aittala , Jaakko Lehtinen

We propose an approach for dense semantic 3D reconstruction which uses a data term that is defined as potentials over viewing rays, combined with continuous surface area penalization. Our formulation is a convex relaxation which we augment…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Nikolay Savinov , Christian Haene , Lubor Ladicky , Marc Pollefeys

This paper studies the problem of 3D volumetric reconstruction from two views of a scene with an unknown camera. While seemingly easy for humans, this problem poses many challenges for computers since it requires simultaneously…

计算机视觉与模式识别 · 计算机科学 2020-07-28 Shengyi Qian , Linyi Jin , David F. Fouhey

Recovering the 3D structure of an object from a single image is a challenging task due to its ill-posed nature. One approach is to utilize the plentiful photos of the same object category to learn a strong 3D shape prior for the object.…

计算机视觉与模式识别 · 计算机科学 2021-09-08 Long-Nhat Ho , Anh Tuan Tran , Quynh Phung , Minh Hoai

This paper presents a new technique for the virtual reality (VR) visu-alization of complex volume images obtained from computer tomography (CT) and Magnetic Resonance Imaging (MRI) by combining three-dimensional (3D) mesh processing and…

多媒体 · 计算机科学 2023-05-02 Iva Vasic , Roberto Pierdicca , Emanuele Frontoni , Bata Vasic

Robotic-assisted surgery allows surgeons to conduct precise surgical operations with stereo vision and flexible motor control. However, the lack of 3D spatial perception limits situational awareness during procedures and hinders mastering…

图像与视频处理 · 电气工程与系统科学 2022-03-07 Shang Zhao , Ce Wang , Qiyuan Wang , Yanzhe Liu , S Kevin Zhou

Computed tomography (CT) provides highly detailed three-dimensional (3D) medical images but is costly, time-consuming, and often inaccessible in intraoperative settings (Organization et al. 2011). Recent advancements have explored…

图像与视频处理 · 电气工程与系统科学 2024-12-12 Zhaoxi Zhang , Yueliang Ying

3D face reconstruction from a single image is a classical and challenging problem, with wide applications in many areas. Inspired by recent works in face animation from RGB-D or monocular video inputs, we develop a novel method for…

计算机视觉与模式识别 · 计算机科学 2018-08-01 Luo Jiang , Juyong Zhang , Bailin Deng , Hao Li , Ligang Liu

When created faithfully from real-world data, Digital 3D representations of objects can be useful for human or computer-assisted analysis. Such models can also serve for generating training data for machine learning approaches in settings…

计算机视觉与模式识别 · 计算机科学 2024-07-08 David Nakath , Xiangyu Weng , Mengkun She , Kevin Köser

Reconstructed 3D ultrasound volume provides more context information compared to a sequence of 2D scanning frames, which is desirable for various clinical applications such as ultrasound-guided prostate biopsy. Nevertheless, 3D volume…

计算机视觉与模式识别 · 计算机科学 2020-11-18 Hengtao Guo , Sheng Xu , Bradford J. Wood , Pingkun Yan

Reconstructing geometry and topology structures from raw unstructured data has always been an important research topic in indoor mapping research. In this paper, we aim to reconstruct the floorplan with a vectorized representation from…

计算机视觉与模式识别 · 计算机科学 2024-07-16 Yuzhou Liu , Lingjie Zhu , Xiaodong Ma , Hanqiao Ye , Xiang Gao , Xianwei Zheng , Shuhan Shen

Three-dimensional (3D) freehand ultrasound (US) is a widely used imaging modality that allows non-invasive imaging of medical anatomy without radiation exposure. Surface reconstruction of US volume is vital to acquire the accurate…

Volumetric phenomena, such as clouds and fog, present a significant challenge for 3D reconstruction systems due to their translucent nature and their complex interactions with light. Conventional techniques for reconstructing scattering…

计算机视觉与模式识别 · 计算机科学 2023-11-30 Jacob Lin , Miguel Farinha , Edward Gryspeerdt , Ronald Clark

Limited-angle electron tomography aims to reconstruct 3D shapes from 2D projections of Transmission Electron Microscopy (TEM) within a restricted range and number of tilting angles, but it suffers from the missing-wedge problem that causes…

计算机视觉与模式识别 · 计算机科学 2026-05-05 Zhantao Deng , Mériem Er-Rafik , Anna Sushko , Cécile Hébert , Pascal Fua

The rapid development of Large Multimodal Models (LMMs) has led to remarkable progress in 2D visual understanding; however, extending these capabilities to 3D scene understanding remains a significant challenge. Existing approaches…

计算机视觉与模式识别 · 计算机科学 2025-09-05 Hongpei Zheng , Lintao Xiang , Qijun Yang , Qian Lin , Hujun Yin