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Despite significant progress made over the past twenty five years, unconstrained face verification remains a challenging problem. This paper proposes an approach that couples a deep CNN-based approach with a low-dimensional discriminative…

Computer Vision and Pattern Recognition · Computer Science 2017-01-19 Swami Sankaranarayanan , Azadeh Alavi , Carlos Castillo , Rama Chellappa

3D Gaussian Splatting (3DGS) has attracted significant attention for its high-quality novel view rendering, inspiring research to address real-world challenges. While conventional methods depend on sharp images for accurate scene…

Computer Vision and Pattern Recognition · Computer Science 2025-05-16 Jungho Lee , Suhwan Cho , Taeoh Kim , Ho-Deok Jang , Minhyeok Lee , Geonho Cha , Dongyoon Wee , Dogyoon Lee , Sangyoun Lee

We present a novel axial ptychographic coherent diffractive imaging (AP-CDI) technique designed to overcome the critical throughput bottleneck of conventional methods. By replacing the 2D raster scan with a simple 1D axial scan, our…

Optics · Physics 2025-11-24 Qijun You , Lingshuo Meng , Fangrui Quan , Wei Cao

Significance: Cerebral blood flow (CBF) imaging is crucial for diagnosing cerebrovascular diseases. However, existing large neuroimaging techniques with high cost, low sampling rate, and poor mobility make them unsuitable for continuous and…

Tissues and Organs · Quantitative Biology 2024-08-26 Faezeh Akbari , Xuhui Liu , Fatemeh Hamedi , Mehrana Mohtasebi , Lei Chen , Guoqiang Yu

In Bag-of-Words (BoW) based image retrieval, the SIFT visual word has a low discriminative power, so false positive matches occur prevalently. Apart from the information loss during quantization, another cause is that the SIFT feature only…

Computer Vision and Pattern Recognition · Computer Science 2014-04-15 Liang Zheng , Shengjin Wang , Ziqiong Liu , Qi Tian

Current image fusion methods struggle to adapt to real-world environments encompassing diverse degradations with spatially varying characteristics. To address this challenge, we propose a robust fusion controller (RFC) capable of achieving…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Hao Zhang , Yanping Zha , Qingwei Zhuang , Zhenfeng Shao , Jiayi Ma

Transformers are very powerful tools for a variety of tasks across domains, from text generation to image captioning. However, transformers require substantial amounts of training data, which is often a challenge in biomedical settings,…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Andrew Kean Gao

Image color harmonization algorithm aims to automatically match the color distribution of foreground and background images captured in different conditions. Previous deep learning based models neglect two issues that are critical for…

Computer Vision and Pattern Recognition · Computer Science 2022-07-21 Ben Xue , Shenghui Ran , Quan Chen , Rongfei Jia , Binqiang Zhao , Xing Tang

Previous methods for Video Frame Interpolation (VFI) have encountered challenges, notably the manifestation of blur and ghosting effects. These issues can be traced back to two pivotal factors: unavoidable motion errors and misalignment in…

Computer Vision and Pattern Recognition · Computer Science 2024-04-11 Guangyang Wu , Xin Tao , Changlin Li , Wenyi Wang , Xiaohong Liu , Qingqing Zheng

Image Phase Alignment Super-Sampling (ImPASS) is a computational imaging algorithm for converting a sequence of displaced low-resolution images into a single high-resolution image. The method consists of a unique combination of Phase…

Optics · Physics 2025-09-01 James N. Caron

The problem of faces detection in images or video streams is a classical problem of computer vision. The multiple solutions of this problem have been proposed, but the question of their optimality is still open. Many algorithms achieve a…

Computer Vision and Pattern Recognition · Computer Science 2015-11-24 Ilya Kalinovskii , Vladimir Spitsyn

This paper addresses the problem of estimating the 3-DoF camera pose for a ground-level image with respect to a satellite image that encompasses the local surroundings. We propose a novel end-to-end approach that leverages the learning of…

Computer Vision and Pattern Recognition · Computer Science 2023-12-29 Zhenbo Song , Xianghui Ze , Jianfeng Lu , Yujiao Shi

Purpose: Recent developments in hardware design enable the use of Fast Field-Cycling (FFC) techniques in MRI to exploit the different relaxation rates at very low field strength, achieving novel contrast. The method opens new avenues for in…

Signal Processing · Electrical Eng. & Systems 2021-05-19 Markus Bödenler , Oliver Maier , Rudolf Stollberger , Lionel M. Broche , P. James Ross , Mary-Joan MacLeod , Hermann Scharfetter

Depth estimation and 3D object detection are critical for scene understanding but remain challenging to perform with a single image due to the loss of 3D information during image capture. Recent models using deep neural networks have…

Computer Vision and Pattern Recognition · Computer Science 2019-04-19 Julie Chang , Gordon Wetzstein

In this paper, we propose a novel complex convolutional neural network (CNN) CSI enhancer for integrated sensing and communications (ISAC), which exploits the correlation between the sensing parameters (such as angle-of-arrival and range)…

Information Theory · Computer Science 2023-06-21 Xu Chen , Zhiyong Feng , J. Andrew Zhang , Feifei Gao , Xin Yuan , Zhaohui Yang , Ping Zhang

It is a challenge for Phase Measurement Profilometry (PMP) to measure objects with a large range of reflectivity variation across the surface. Saturated or dark pixels in the deformed fringe patterns captured by the camera will lead to…

Computer Vision and Pattern Recognition · Computer Science 2016-11-23 Minmin Wang , Guangliang Du , Canlin Zhou , Chaorui Zhang , Shuchun Si , Hui Li , Zhenkun Lei , YanJie Li

Existing low-light image enhancement techniques are mostly not only difficult to deal with both visual quality and computational efficiency but also commonly invalid in unknown complex scenarios. In this paper, we develop a new…

Computer Vision and Pattern Recognition · Computer Science 2022-04-22 Long Ma , Tengyu Ma , Risheng Liu , Xin Fan , Zhongxuan Luo

CT scanners that are commonly-used in hospitals nowadays produce low-resolution images, up to 512 pixels in size. One pixel in the image corresponds to a one millimeter piece of tissue. In order to accurately segment tumors and make…

Computer Vision and Pattern Recognition · Computer Science 2023-04-07 Mariana-Iuliana Georgescu , Radu Tudor Ionescu , Nicolae Verga

We propose a method of complex-amplitude Fourier single-pixel imaging (CFSI) with coherent structured illumination to acquire both the amplitude and phase of an object. In the proposed method, an object is illustrated by a series of…

Removing camera motion blur from a single light field is a challenging task since it is highly ill-posed inverse problem. The problem becomes even worse when blur kernel varies spatially due to scene depth variation and high-order camera…

Computer Vision and Pattern Recognition · Computer Science 2018-06-15 Dongwoo Lee , Haesol Park , In Kyu Park , Kyoung Mu Lee