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Recent technological developments have spurred great advances in the computerized tracking of joints and other landmarks in moving animals, including humans. Such tracking promises important advances in biology and biomedicine. Modern…

Computer Vision and Pattern Recognition · Computer Science 2021-10-04 Praneet C. Bala , Jan Zimmermann , Hyun Soo Park , Benjamin Y. Hayden

Due to the inter- and intra- variation of respiratory motion, it is highly desired to provide real-time volumetric images during the treatment delivery of lung stereotactic body radiation therapy (SBRT) for accurate and active motion…

Deformable registration of two-dimensional/three-dimensional (2D/3D) images of abdominal organs is a complicated task because the abdominal organs deform significantly and their contours are not detected in two-dimensional X-ray images. We…

Image and Video Processing · Electrical Eng. & Systems 2022-12-13 Ryuto Miura , Megumi Nakao , Mitsuhiro Nakamura , Tetsuya Matsuda

The increasing availability of intraoral scanning devices has heightened their importance in modern clinical orthodontics. Clinicians utilize advanced Computer-Aided Design techniques to create patient-specific treatment plans that include…

Computer Vision and Pattern Recognition · Computer Science 2025-04-16 Tibor Kubík , Oldřich Kodym , Petr Šilling , Kateřina Trávníčková , Tomáš Mojžiš , Jan Matula

Existing deep learning-based approaches for monocular 3D object detection in autonomous driving often model the object as a rotated 3D cuboid while the object's geometric shape has been ignored. In this work, we propose an approach for…

Computer Vision and Pattern Recognition · Computer Science 2021-08-26 Zongdai Liu , Dingfu Zhou , Feixiang Lu , Jin Fang , Liangjun Zhang

3D perception of object shapes from RGB image input is fundamental towards semantic scene understanding, grounding image-based perception in our spatially 3-dimensional real-world environments. To achieve a mapping between image views of…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Weicheng Kuo , Anelia Angelova , Tsung-Yi Lin , Angela Dai

Long-term point tracking is essential to understand non-rigid motion in the physical world better. Deep learning approaches have recently been incorporated into long-term point tracking, but most prior work predominantly functions in 2D.…

Computer Vision and Pattern Recognition · Computer Science 2024-07-19 Hung Nguyen , Chanho Kim , Rigved Naukarkar , Li Fuxin

The goal of many computer vision systems is to transform image pixels into 3D representations. Recent popular models use neural networks to regress directly from pixels to 3D object parameters. Such an approach works well when supervision…

Computer Vision and Pattern Recognition · Computer Science 2020-01-07 Nadine Rueegg , Christoph Lassner , Michael J. Black , Konrad Schindler

The two-dimensional (2D) ultrasound imaging is widely used in several fields. In this study, the potential of two-dimensional ultrasound imaging technique based on machine learning is shown. A line transmitter was placed at one side and a…

Medical Physics · Physics 2020-04-21 Yoshiki Nagatani , Shigeaki Okumura , Shuqiong Wu , Tetsuya Matsuda

Tissue deformation in ultrasound (US) imaging leads to geometrical errors when measuring tissues due to the pressure exerted by probes. Such deformation has an even larger effect on 3D US volumes as the correct compounding is limited by the…

Image and Video Processing · Electrical Eng. & Systems 2021-10-26 Zhongliang Jiang , Yue Zhou , Yuan Bi , Mingchuan Zhou , Thomas Wendler , Nassir Navab

Accurate assessment of Lung nodules is a time consuming and error prone ingredient of the radiologist interpretation work. Automating 3D volume detection and segmentation can improve workflow as well as patient care. Previous works have…

Image and Video Processing · Electrical Eng. & Systems 2019-07-29 Evi Kopelowitz , Guy Engelhard

Deep learning-based 3D human pose estimation performs best when trained on large amounts of labeled data, making combined learning from many datasets an important research direction. One obstacle to this endeavor are the different skeleton…

Computer Vision and Pattern Recognition · Computer Science 2023-01-02 István Sárándi , Alexander Hermans , Bastian Leibe

3D representation and reconstruction of human bodies have been studied for a long time in computer vision. Traditional methods rely mostly on parametric statistical linear models, limiting the space of possible bodies to linear…

Computer Vision and Pattern Recognition · Computer Science 2021-12-01 Sandro Lombardi , Bangbang Yang , Tianxing Fan , Hujun Bao , Guofeng Zhang , Marc Pollefeys , Zhaopeng Cui

Reliably modeling normality and differentiating abnormal appearances from normal cases is a very appealing approach for detecting pathologies in medical images. A plethora of such unsupervised anomaly detection approaches has been made in…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Christoph Baur , Benedikt Wiestler , Shadi Albarqouni , Nassir Navab

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…

Multimedia · Computer Science 2023-05-02 Iva Vasic , Roberto Pierdicca , Emanuele Frontoni , Bata Vasic

We use spatially-sparse two, three and four dimensional convolutional autoencoder networks to model sparse structures in 2D space, 3D space, and 3+1=4 dimensional space-time. We evaluate the resulting latent spaces by testing their…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Benjamin Graham

Objective: The objective of this work is an attempt towards non-contact freehand 3D ultrasound imaging with minimal complexity added to the existing point of care ultrasound (POCUS) systems. Methods: This study proposes a novel approach of…

Image and Video Processing · Electrical Eng. & Systems 2023-10-09 Antony Jerald , A. N. Madhavanunni , Gayathri Malamal , Mahesh Raveendranatha Panicker

Feature matching is an important technique to identify a single object in different images. It helps machines to construct recognition of a specific object from multiple perspectives. For years, feature matching has been commonly used in…

Computer Vision and Pattern Recognition · Computer Science 2020-10-26 Hang Zhu , Zihao Wang

Human pose and shape estimation from RGB images is a highly sought after alternative to marker-based motion capture, which is laborious, requires expensive equipment, and constrains capture to laboratory environments. Monocular vision-based…

Computer Vision and Pattern Recognition · Computer Science 2020-11-30 Soyong Shin , Eni Halilaj

Visual defect detection plays an important role in intelligent industry. Patch based methods consider visual images as a collection of image patches according to positions, which have stronger discriminative ability for small defects in…

Computer Vision and Pattern Recognition · Computer Science 2024-01-19 Chao Han , Yudong Yan