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How to effectively represent camera pose is an essential problem in 3D computer vision, especially in tasks such as camera pose regression and novel view synthesis. Traditionally, 3D position of the camera is represented by Cartesian…

Computer Vision and Pattern Recognition · Computer Science 2021-05-11 Yaxuan Zhu , Ruiqi Gao , Siyuan Huang , Song-Chun Zhu , Ying Nian Wu

We present a method for simultaneously estimating 3D human pose and body shape from a sparse set of wide-baseline camera views. We train a symmetric convolutional autoencoder with a dual loss that enforces learning of a latent…

Computer Vision and Pattern Recognition · Computer Science 2018-07-05 Matthew Trumble , Andrew Gilbert , Adrian Hilton , John Collomosse

There has been a significant increase from 2010 to 2016 in the number of people suffering from spine problems. The automatic image segmentation of the spine obtained from a computed tomography (CT) image is important for diagnosing spine…

Computer Vision and Pattern Recognition · Computer Science 2017-12-06 Malinda Vania , Dawit Mureja , Deukhee Lee

Anatomical structures such as the hippocampus, liver, and bones can be analyzed as orientable, closed surfaces. This permits the computation of volume, surface area, mean curvature, Gaussian curvature, and the Euler-Poincar\'e…

Computer Vision and Pattern Recognition · Computer Science 2021-08-11 Bryce A Besler , Tannis D. Kemp , Andrew S. Michalski , Nils D. Forkert , Steven K. Boyd

We propose a novel approach to 3D human pose estimation from a single depth map. Recently, convolutional neural network (CNN) has become a powerful paradigm in computer vision. Many of computer vision tasks have benefited from CNNs,…

Computer Vision and Pattern Recognition · Computer Science 2017-07-11 Gyeongsik Moon , Ju Yong Chang , Yumin Suh , Kyoung Mu Lee

Ultrasound (US) imaging is increasingly used in spinal procedures due to its real-time, radiation-free capabilities; however, its effectiveness is hindered by shadowing artifacts that obscure deeper tissue structures. Traditional…

Computer Vision and Pattern Recognition · Computer Science 2025-08-13 Miruna-Alexandra Gafencu , Reem Shaban , Yordanka Velikova , Mohammad Farid Azampour , Nassir Navab

Automatic detection of polyps is challenging because different polyps vary greatly, while the changes between polyps and their analogues are small. The state-of-the-art methods are based on convolutional neural networks (CNNs). However,…

Computer Vision and Pattern Recognition · Computer Science 2022-01-26 Jianwei Xu , Ran Zhao , Yizhou Yu , Qingwei Zhang , Xianzhang Bian , Jun Wang , Zhizheng Ge , Dahong Qian

In this paper, we propose a novel 3D graph convolution based pipeline for category-level 6D pose and size estimation from monocular RGB-D images. The proposed method leverages an efficient 3D data augmentation and a novel vector-based…

Computer Vision and Pattern Recognition · Computer Science 2023-01-31 Wei Chen , Xi Jia , Zhongqun Zhang , Hyung Jin Chang , Linlin Shen , Jinming Duan , Ales Leonardis

Vertebral detection and segmentation are critical steps for treatment planning in spine surgery and radiation therapy. Accurate identification and segmentation are complicated in imaging that does not include the full spine, in cases with…

Image and Video Processing · Electrical Eng. & Systems 2023-11-17 Geoff Klein , Michael Hardisty , Cari Whyne , Anne L. Martel

This paper aims to create a deep learning framework that can estimate the deformation vector field (DVF) for directly registering abdominal MRI-CT images. The proposed method assumed a diffeomorphic deformation. By using topology-preserved…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Yang Lei , Luke A. Matkovic , Justin Roper , Tonghe Wang , Jun Zhou , Beth Ghavidel , Mark McDonald , Pretesh Patel , Xiaofeng Yang

The three-dimensional reconstruction of vocal folds in medicine usually involves endoscopy and an approach to extract depth information like structured light or stereo matching of images. The resulting mesh can accurately represent the…

Fluid Dynamics · Physics 2023-10-06 Daniel Zieger , Christoph Näger , Stefan Becker , Tobias Günther

Analyzing fetal body motion and shape is paramount in prenatal diagnostics and monitoring. Existing methods for fetal MRI analysis mainly rely on anatomical keypoints or volumetric body segmentations. Keypoints simplify body structure to…

Computer Vision and Pattern Recognition · Computer Science 2025-07-18 Yingcheng Liu , Peiqi Wang , Sebastian Diaz , Esra Abaci Turk , Benjamin Billot , P. Ellen Grant , Polina Golland

This paper presents a method for automatic segmentation, localization, and identification of vertebrae in arbitrary 3D CT images. Many previous works do not perform the three tasks simultaneously even though requiring a priori knowledge of…

Image and Video Processing · Electrical Eng. & Systems 2020-10-01 Naoto Masuzawa , Yoshiro Kitamura , Keigo Nakamura , Satoshi Iizuka , Edgar Simo-Serra

Automatic blood vessel extraction from 3D medical images is crucial for vascular disease diagnoses. Existing methods based on convolutional neural networks (CNNs) may suffer from discontinuities of extracted vessels when segmenting such…

Image and Video Processing · Electrical Eng. & Systems 2020-12-15 Jiafa He , Chengwei Pan , Can Yang , Ming Zhang , Yang Wang , Xiaowei Zhou , Yizhou Yu

We aim to simultaneously estimate the 3D articulated pose and high fidelity volumetric occupancy of human performance, from multiple viewpoint video (MVV) with as few as two views. We use a multi-channel symmetric 3D convolutional…

Computer Vision and Pattern Recognition · Computer Science 2020-09-08 Andrew Gilbert , Matthew Trumble , Adrian Hilton , John Collomosse

A hybrid imaging system consisting of a standard CT scanner and a low-profile photon-counting detector insert in contact with the patient's body has been used to produce ultrahigh-resolution images in a limited volume in chest scans of…

Medical Physics · Physics 2022-09-05 Dakota H. King , Eric E. Bennett , Dumitru Mazilu , Muyang Wang , Marcus Y. Chen , Han Wen

Purpose: Accurate 3D MRI-ultrasound (US) deformable registration is critical for real-time guidance in high-dose-rate (HDR) prostate brachytherapy. We present a weakly supervised spatial implicit neural representation (SINR) method to…

Medical Physics · Physics 2025-03-19 Jing Wang , Ruirui Liu , Yu Lei , Michael J. Baine , Tian Liu , Yang Lei

Cervical spine fractures demand rapid and accurate diagnosis for effective clinical management. This study presents an automated, end-to-end pipeline for fracture detection across cervical vertebrae (C1--C7) that assesses the feasibility of…

Computer Vision and Pattern Recognition · Computer Science 2026-03-05 Fabi Nahian Madhurja , Rusab Sarmun , Muhammad E. H. Chowdhury , Adam Mushtak , Israa Al-Hashimi , Sohaib Bassam Zoghoul

Radiological imaging of the prostate is becoming more popular among researchers and clinicians in searching for diseases, primarily cancer. Scans might be acquired with different equipment or at different times for prognosis monitoring,…

Graphics · Computer Science 2016-08-03 Saad Nadeem , Rui Shi , Joseph Marino , Wei Zeng , Xianfeng Gu , Arie Kaufman

This paper presents a method to register a pre-operative Computed-Tomography (CT) volume to a sparse set of intra-operative Ultra-Sound (US) slices. In the context of percutaneous renal puncture, the aim is to transfer planning information…

Medical Physics · Physics 2007-06-25 Antoine Leroy , Pierre Mozer , Yohan Payan , Jocelyne Troccaz