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Computed Tomography (CT) imaging technique is widely used in geological exploration, medical diagnosis and other fields. In practice, however, the resolution of CT image is usually limited by scanning devices and great expense. Super…

Computer Vision and Pattern Recognition · Computer Science 2020-01-29 Yukai Wang , Qizhi Teng , Xiaohai He , Junxi Feng , Tingrong Zhang

We propose a novel 3D face recognition algorithm using a deep convolutional neural network (DCNN) and a 3D augmentation technique. The performance of 2D face recognition algorithms has significantly increased by leveraging the…

Computer Vision and Pattern Recognition · Computer Science 2017-04-03 Donghyun Kim , Matthias Hernandez , Jongmoo Choi , Gerard Medioni

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…

Computer Vision and Pattern Recognition · Computer Science 2016-06-16 Fausto Milletari , Nassir Navab , Seyed-Ahmad Ahmadi

Direct automatic segmentation of objects from 3D medical imaging, such as magnetic resonance (MR) imaging, is challenging as it often involves accurately identifying a number of individual objects with complex geometries within a large…

Image and Video Processing · Electrical Eng. & Systems 2021-09-23 Wei Dai , Boyeong Woo , Siyu Liu , Matthew Marques , Craig B. Engstrom , Peter B. Greer , Stuart Crozier , Jason A. Dowling , Shekhar S. Chandra

The paper introduces the weighted convolution, a novel approach to the convolution for signals defined on regular grids (e.g., 2D images) through the application of an optimal density function to scale the contribution of neighbouring…

Computer Vision and Pattern Recognition · Computer Science 2025-06-02 Simone Cammarasana , Giuseppe Patanè

Deep Convolutional Neural Networks (DCNNs) are used extensively in medical image segmentation and hence 3D navigation for robot-assisted Minimally Invasive Surgeries (MISs). However, current DCNNs usually use down sampling layers for…

Machine Learning · Computer Science 2020-06-05 Xiao-Yun Zhou , Jian-Qing Zheng , Peichao Li , Guang-Zhong Yang

In this paper, we examine 3 important issues in the practical use of state-of-the-art facial landmark detectors and show how a combination of specific architectural modifications can directly improve their accuracy and temporal stability.…

Computer Vision and Pattern Recognition · Computer Science 2024-05-31 Prashanth Chandran , Gaspard Zoss , Paulo Gotardo , Derek Bradley

Deep convolutional neural networks achieve remarkable visual recognition performance, at the cost of high computational complexity. In this paper, we have a new design of efficient convolutional layers based on three schemes. The 3D…

Computer Vision and Pattern Recognition · Computer Science 2017-01-25 Min Wang , Baoyuan Liu , Hassan Foroosh

We propose an efficient Stereographic Projection Neural Network (SPNet) for learning representations of 3D objects. We first transform a 3D input volume into a 2D planar image using stereographic projection. We then present a shallow 2D…

Computer Vision and Pattern Recognition · Computer Science 2019-01-25 Mohsen Yavartanoo , Eu Young Kim , Kyoung Mu Lee

Compared with 2D MRI, 3D MRI provides superior volumetric spatial resolution and signal-to-noise ratio. However, it is more challenging to reconstruct 3D MRI images. Current methods are mainly based on convolutional neural networks (CNN)…

Image and Video Processing · Electrical Eng. & Systems 2023-06-01 Eric Z. Chen , Chi Zhang , Xiao Chen , Yikang Liu , Terrence Chen , Shanhui Sun

Neural implicit functions have achieved impressive results for reconstructing 3D shapes from single images. However, the image features for describing 3D point samplings of implicit functions are less effective when significant variations…

Computer Vision and Pattern Recognition · Computer Science 2022-02-01 Yixin Zhuang , Yunzhe Liu , Yujie Wang , Baoquan Chen

Accurate capacitance extraction is becoming more important for designing integrated circuits under advanced process technology. The pattern matching based full-chip extraction methodology delivers fast computational speed, but suffers from…

Machine Learning · Computer Science 2021-07-15 Dingcheng Yang , Wenjian Yu , Yuanbo Guo , Wenjie Liang

Convex Shapes (CS) are common priors for optic disc and cup segmentation in eye fundus images. It is important to design proper techniques to represent convex shapes. So far, it is still a problem to guarantee that the output objects from a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-18 Jun Liu , Xue-Cheng Tai , Shousheng Luo

Computer Aided Diagnosis has emerged as an indispensible technique for validating the opinion of radiologists in CT interpretation. This paper presents a deep 3D Convolutional Neural Network (CNN) architecture for automated CT scan-based…

Image and Video Processing · Electrical Eng. & Systems 2019-06-05 Sumita Mishra , Naresh Kumar Chaudhary , Pallavi Asthana , Anil Kumar

The rapid development in representation learning techniques such as deep neural networks and the availability of large-scale, well-annotated medical imaging datasets have to a rapid increase in the use of supervised machine learning in the…

Computer Vision and Pattern Recognition · Computer Science 2023-04-19 Dat T. Ngo , Thao T. B. Nguyen , Hieu T. Nguyen , Dung B. Nguyen , Ha Q. Nguyen , Hieu H. Pham

This paper is about reducing the cost of building good large-scale 3D reconstructions post-hoc. We render 2D views of an existing reconstruction and train a convolutional neural network (CNN) that refines inverse-depth to match a…

Computer Vision and Pattern Recognition · Computer Science 2020-01-23 Ştefan Săftescu , Paul Newman

Convolutional Neural Networks (CNN) have emerged as powerful tools for learning discriminative image features. In this paper, we propose a framework of 3-D fully CNN models for Glioblastoma segmentation from multi-modality MRI data. By…

Computer Vision and Pattern Recognition · Computer Science 2016-11-15 Darvin Yi , Mu Zhou , Zhao Chen , Olivier Gevaert

Recent advancements in learning techniques that employ coordinate-based neural representations have yielded remarkable results in multi-view 3D reconstruction tasks. However, these approaches often require a substantial number of input…

Computer Vision and Pattern Recognition · Computer Science 2025-02-12 Pol Caselles , Eduard Ramon , Jaime Garcia , Gil Triginer , Francesc Moreno-Noguer

Depth prediction plays a key role in understanding a 3D scene. Several techniques have been developed throughout the years, among which Convolutional Neural Network has recently achieved state-of-the-art performance on estimating depth from…

Computer Vision and Pattern Recognition · Computer Science 2021-03-16 Binghan Li , Yindong Hua , Yifeng Liu , Mi Lu

In this paper, we propose a deep learning approach for image registration by predicting deformation from image appearance. Since obtaining ground-truth deformation fields for training can be challenging, we design a fully convolutional…

Computer Vision and Pattern Recognition · Computer Science 2018-02-14 Jingfan Fan , Xiaohuan Cao , Pew-Thian Yap , Dinggang Shen