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In the procedure of surface defects detection for large-aperture aspherical optical elements, it is of vital significance to adjust the optical axis of the element to be coaxial with the mechanical spin axis accurately. Therefore, a machine…

Computer Vision and Pattern Recognition · Computer Science 2023-09-04 Fanyi Wang , Pin Cao , Yihui Zhang , Haotian Hu , Yongying Yang

We propose an architecture for fine-grained visual categorization that approaches expert human performance in the classification of bird species. Our architecture first computes an estimate of the object's pose; this is used to compute…

Computer Vision and Pattern Recognition · Computer Science 2014-06-12 Steve Branson , Grant Van Horn , Serge Belongie , Pietro Perona

Video restoration tasks, including super-resolution, deblurring, etc, are drawing increasing attention in the computer vision community. A challenging benchmark named REDS is released in the NTIRE19 Challenge. This new benchmark challenges…

Computer Vision and Pattern Recognition · Computer Science 2019-05-08 Xintao Wang , Kelvin C. K. Chan , Ke Yu , Chao Dong , Chen Change Loy

Accurate detection and segmentation of anatomical structures from ultrasound images are crucial for clinical diagnosis and biometric measurements. Although ultrasound imaging has been widely used with superiorities such as low cost and…

Computer Vision and Pattern Recognition · Computer Science 2016-07-08 Hao Chen , Yefeng Zheng , Jin-Hyeong Park , Pheng-Ann Heng , S. Kevin Zhou

While 360{\deg} cameras offer tremendous new possibilities in vision, graphics, and augmented reality, the spherical images they produce make core feature extraction non-trivial. Convolutional neural networks (CNNs) trained on images from…

Computer Vision and Pattern Recognition · Computer Science 2018-12-10 Yu-Chuan Su , Kristen Grauman

The task of crafting procedural programs capable of generating structurally valid 3D shapes easily and intuitively remains an elusive goal in computer vision and graphics. Within the graphics community, generating procedural 3D models has…

Graphics · Computer Science 2025-03-21 Ofek Pearl , Itai Lang , Yuhua Hu , Raymond A. Yeh , Rana Hanocka

Multi-dimensional distributions of discrete data that resemble ellipsoids arise in numerous areas of science, statistics, and computational geometry. We describe a complete algebraic algorithm to determine the quadratic form specifying the…

Data Analysis, Statistics and Probability · Physics 2020-04-20 Rafey Anwar , Madeline Hamilton , Pavel Nadolsky

Depth of field is an important factor of imaging systems that highly affects the quality of the acquired spatial information. Extended depth of field (EDoF) imaging is a challenging ill-posed problem and has been extensively addressed in…

Image and Video Processing · Electrical Eng. & Systems 2020-05-27 Ugur Akpinar , Erdem Sahin , Monjurul Meem , Rajesh Menon , Atanas Gotchev

Even with the rise in popularity of over-parameterized models, simple dimensionality reduction and clustering methods, such as PCA and k-means, are still routinely used in an amazing variety of settings. A primary reason is the combination…

Methodology · Statistics 2020-09-08 Debolina Paul , Saptarshi Chakraborty , Didong Li , David Dunson

Image deblurring is a fundamental and challenging low-level vision problem. Previous vision research indicates that edge structure in natural scenes is one of the most important factors to estimate the abilities of human visual perception.…

Computer Vision and Pattern Recognition · Computer Science 2020-07-14 Zhichao Fu , Tianlong Ma , Yingbin Zheng , Hao Ye , Jing Yang , Liang He

The existing facial datasets, while having plentiful images at near frontal views, lack images with extreme head poses, leading to the downgraded performance of deep learning models when dealing with profile or pitched faces. This work aims…

Computer Vision and Pattern Recognition · Computer Science 2024-04-15 Trung Tuan Dao , Duc Hong Vu , Cuong Pham , Anh Tran

The application of deep learning techniques has greatly enhanced holographic imaging capabilities, leading to improved phase recovery and image reconstruction. Here, we introduce a deep neural network termed enhanced Fourier Imager Network…

Optics · Physics 2023-02-28 Hanlong Chen , Luzhe Huang , Tairan Liu , Aydogan Ozcan

Elliptic variational inequalities (EVIs) present significant challenges in numerical computation due to their inherent non-smoothness, nonlinearity, and inequality formulations. Traditional mesh-based methods often struggle with complex…

Optimization and Control · Mathematics 2025-10-29 Yu Gao , Yongcun Song , Zhiyu Tan , Hangrui Yue , Shangzhi Zeng

Long-range correlations are essential across numerous machine learning tasks, especially for data embedded in Euclidean space, where the relative positions and orientations of distant components are often critical for accurate predictions.…

Machine Learning · Computer Science 2025-09-30 J. Thorben Frank , Stefan Chmiela , Klaus-Robert Müller , Oliver T. Unke

Affine correspondences have received significant attention due to their benefits in tasks like image matching and pose estimation. Existing methods for extracting affine correspondences still have many limitations in terms of performance;…

Computer Vision and Pattern Recognition · Computer Science 2025-04-11 Pengju Sun , Banglei Guan , Zhenbao Yu , Yang Shang , Qifeng Yu , Daniel Barath

Accurate three-dimensional (3D) reconstruction of guidewire shapes is crucial for precise navigation in robot-assisted endovascular interventions. Conventional 2D Digital Subtraction Angiography (DSA) is limited by the absence of depth…

Robotics · Computer Science 2025-06-30 Tianliang Yao , Bingrui Li , Bo Lu , Zhiqiang Pei , Yixuan Yuan , Peng Qi

In recent years, many design automation methods have been developed to routinely create approximate implementations of circuits and programs that show excellent trade-offs between the quality of output and required resources. This paper…

Neural and Evolutionary Computing · Computer Science 2021-08-17 Lukas Sekanina

The high-dimensional nature of the 4-D light field (LF) poses great challenges in achieving efficient and effective feature embedding, that severely impacts the performance of downstream tasks. To tackle this crucial issue, in contrast to…

Image and Video Processing · Electrical Eng. & Systems 2024-01-12 Xianqiang Lyu , Junhui Hou

In this paper, an Entropy functional based online Adaptive Decision Fusion (EADF) framework is developed for image analysis and computer vision applications. In this framework, it is assumed that the compound algorithm consists of several…

Computer Vision and Pattern Recognition · Computer Science 2015-05-27 Osman Gunay , Behcet Ugur Toreyin , Kivanc Kose , A. Enis Cetin

Image enhancement holds extensive applications in real-world scenarios due to complex environments and limitations of imaging devices. Conventional methods are often constrained by their tailored models, resulting in diminished robustness…

Computer Vision and Pattern Recognition · Computer Science 2024-06-04 Yixuan Zhu , Wenliang Zhao , Ao Li , Yansong Tang , Jie Zhou , Jiwen Lu