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Image animation aims to bring static images to life according to driving videos and create engaging visual content that can be used for various purposes such as animation, entertainment, and education. Recent unsupervised methods utilize…

Computer Vision and Pattern Recognition · Computer Science 2024-01-18 Hexiang Wang , Fengqi Liu , Qianyu Zhou , Ran Yi , Xin Tan , Lizhuang Ma

Radial basis functions (RBFs) play an important role in function interpolation, in particular in an arbitrary set of interpolation nodes. The accuracy of the interpolation depends on a parameter called the shape parameter. There are many…

Numerical Analysis · Mathematics 2025-08-27 Maria Han Veiga , Faezeh Nassajian Mojarrad , Fatemeh Nassajian Mojarrad

The ability to accurately produce geometries with specified properties is perhaps the most important characteristic of a manufacturing process. 3D printing is marked by exceptional design freedom and complexity but is also prone to…

Graphics · Computer Science 2025-02-04 Christos Margadji , Andi Kuswoyo , Sebastian W. Pattinson

This paper focuses on improved edge model based on Curvelet coefficients analysis. Curvelet transform is a powerful tool for multiresolution representation of object with anisotropic edge. Curvelet coefficients contributions have been…

Computer Vision and Pattern Recognition · Computer Science 2013-05-20 A. Djimeli , D. Tchiotsop , R. Tchinda

Video frame interpolation (VFI) is a challenging task that aims to generate intermediate frames between two consecutive frames in a video. Existing learning-based VFI methods have achieved great success, but they still suffer from limited…

Computer Vision and Pattern Recognition · Computer Science 2023-10-06 Haoning Wu , Xiaoyun Zhang , Weidi Xie , Ya Zhang , Yanfeng Wang

One of the bottlenecks that limit the transition of transformation-optics devices from concepts to practical use is the non-unit magnetic permeability generally required from a mathematical transformation. Simple renormalization of…

Optics · Physics 2012-04-17 Hongyi Xu , Baile Zhang , Tianyuan Yu , George Barbastathis , Handong Sun

The success of deep learning is inseparable from normalization layers. Researchers have proposed various normalization functions, and each of them has both advantages and disadvantages. In response, efforts have been made to design a…

Machine Learning · Computer Science 2024-02-20 Zikai Zhou , Shuo Zhang , Ziruo Wang , Huanran Chen

Simulations with an explicit description of intermolecular forces using electronic structure methods are still not feasible for many systems of interest. As a result, empirical methods such as force fields (FF) have become an established…

Chemical Physics · Physics 2022-06-02 Moritz Thürlemann , Lennard Böselt , Sereina Riniker

It has been shown that equivariant convolution is very helpful for many types of computer vision tasks. Recently, the 2D filter parametrization technique plays an important role when designing equivariant convolutions. However, the current…

Computer Vision and Pattern Recognition · Computer Science 2023-03-10 Qi Xie , Qian Zhao , Zongben Xu , Deyu Meng

Prevailing video frame interpolation algorithms, that generate the intermediate frames from consecutive inputs, typically rely on complex model architectures with heavy parameters or large delay, hindering them from diverse real-time…

Computer Vision and Pattern Recognition · Computer Science 2022-05-31 Lingtong Kong , Boyuan Jiang , Donghao Luo , Wenqing Chu , Xiaoming Huang , Ying Tai , Chengjie Wang , Jie Yang

This study proposes an end-to-end unsupervised diffeomorphic deformable registration framework based on moving mesh parameterization. Using this parameterization, a deformation field can be modeled with its transformation Jacobian…

Image and Video Processing · Electrical Eng. & Systems 2022-08-30 Ameneh Sheikhjafari , Deepa Krishnaswamy , Michelle Noga , Nilanjan Ray , Kumaradevan Punithakumar

Recent works based on convolutional encoder-decoder architecture and 3DMM parameterization have shown great potential for canonical view reconstruction from a single input image. Conventional CNN architectures benefit from exploiting the…

Computer Vision and Pattern Recognition · Computer Science 2023-10-24 Zhiqian Lin , Jiangke Lin , Lincheng Li , Yi Yuan , Zhengxia Zou

In the nineties, several methods for dealing in a more efficient way with the implicitization of rational parametrizations were explored in the Computer Aided Geometric Design Community. The analysis of the validity of these techniques has…

Commutative Algebra · Mathematics 2014-01-27 Carlos D'Andrea

The increasing size of neural networks has led to a growing demand for methods of efficient fine-tuning. Recently, an orthogonal fine-tuning paradigm was introduced that uses orthogonal matrices for adapting the weights of a pretrained…

Machine Learning · Computer Science 2024-06-17 Mikhail Gorbunov , Nikolay Yudin , Vera Soboleva , Aibek Alanov , Alexey Naumov , Maxim Rakhuba

The issue concerning the significant decline in the stability of feature extraction for images subjected to large-angle affine transformations, where the angle exceeds 50 degrees, still awaits a satisfactory solution. Even ASIFT, which is…

Computer Vision and Pattern Recognition · Computer Science 2025-03-06 Tao Wang , Yinghui Wang , Yanxing Liang , Liangyi Huang , Jinlong Yang , Wei Li , Xiaojuan Ning

Proposing an effective and flexible matrix to represent a graph is a fundamental challenge that has been explored from multiple perspectives, e.g., filtering in Graph Fourier Transforms. In this work, we develop a novel and general…

Machine Learning · Computer Science 2023-05-11 Mingqi Yang , Wenjie Feng , Yanming Shen , Bryan Hooi

We consider the problem of two-view matching under significant viewpoint changes with view synthesis. We propose two novel methods, minimizing the view synthesis overhead. The first one, named DenseAffNet, uses dense affine shapes estimates…

Computer Vision and Pattern Recognition · Computer Science 2022-08-01 Václav Vávra , Dmytro Mishkin , Jiří Matas

Video frame interpolation (VFI), which aims to synthesize intermediate frames of a video, has made remarkable progress with development of deep convolutional networks over past years. Existing methods built upon convolutional networks…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Liying Lu , Ruizheng Wu , Huaijia Lin , Jiangbo Lu , Jiaya Jia

Fine-tuning is widely applied in image classification tasks as a transfer learning approach. It re-uses the knowledge from a source task to learn and obtain a high performance in target tasks. Fine-tuning is able to alleviate the challenge…

Computer Vision and Pattern Recognition · Computer Science 2022-07-27 Xuyang Shen , Jo Plested , Sabrina Caldwell , Yiran Zhong , Tom Gedeon

Large pre-trained transformers have revolutionized artificial intelligence across various domains, and fine-tuning remains the dominant approach for adapting these models to downstream tasks due to the cost of training from scratch.…

Computer Vision and Pattern Recognition · Computer Science 2025-07-16 Wei Chen , Jingxi Yu , Zichen Miao , Qiang Qiu