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We present a simple nearest-neighbor (NN) approach that synthesizes high-frequency photorealistic images from an "incomplete" signal such as a low-resolution image, a surface normal map, or edges. Current state-of-the-art deep generative…

计算机视觉与模式识别 · 计算机科学 2017-08-18 Aayush Bansal , Yaser Sheikh , Deva Ramanan

Recently, implicit neural representations (INRs) have attracted increasing attention for multi-dimensional data recovery. However, INRs simply map coordinates via a multi-layer perception (MLP) to corresponding values, ignoring the inherent…

计算机视觉与模式识别 · 计算机科学 2024-11-19 Jiayi Li , Xile Zhao , Jianli Wang , Chao Wang , Min Wang

Image super-resolution (SR) methods essentially lead to a loss of some high-frequency (HF) information when predicting high-resolution (HR) images from low-resolution (LR) images without using external references. To address this issue, we…

计算机视觉与模式识别 · 计算机科学 2018-06-19 Sifeng Xia , Wenhan Yang , Jiaying Liu , Zongming Guo

Single Image Super-Resolution (SISR) aims to generate a high-resolution (HR) image of a given low-resolution (LR) image. The most of existing convolutional neural network (CNN) based SISR methods usually take an assumption that a LR image…

图像与视频处理 · 电气工程与系统科学 2019-09-10 Rao Muhammad Umer , Gian Luca Foresti , Christian Micheloni

Image correction aims to adjust an input image into a visually pleasing one. Existing approaches are proposed mainly from the perspective of image pixel manipulation. They are not effective to recover the details in the under/over exposed…

计算机视觉与模式识别 · 计算机科学 2018-04-13 Xin Yang , Ke Xu , Yibing Song , Qiang Zhang , Xiaopeng Wei , Rynson Lau

Magnetic resonance (MR) imaging is commonly used in the clinical setting to non-invasively monitor the body. There exists a large variability in MR imaging due to differences in scanner hardware, software, and protocol design. Ideally, a…

图像与视频处理 · 电气工程与系统科学 2024-09-02 Savannah P. Hays , Samuel W. Remedios , Lianrui Zuo , Ellen M. Mowry , Scott D. Newsome , Peter A. Calabresi , Aaron Carass , Blake E. Dewey , Jerry L. Prince

Implicit Neural Representations (INRs) are widely used for modeling continuous 2D images, enabling high-fidelity reconstruction, super-resolution, and compression. Architectures such as SIREN, WIRE, and FINER demonstrate their ability to…

计算机视觉与模式识别 · 计算机科学 2026-03-26 Weronika Jakubowska , Mikołaj Zieliński , Rafał Tobiasz , Krzysztof Byrski , Maciej Zięba , Dominik Belter , Przemysław Spurek

Most of the existing learning-based single image superresolution (SISR) methods are trained and evaluated on simulated datasets, where the low-resolution (LR) images are generated by applying a simple and uniform degradation (i.e., bicubic…

计算机视觉与模式识别 · 计算机科学 2019-04-02 Jianrui Cai , Hui Zeng , Hongwei Yong , Zisheng Cao , Lei Zhang

Near infrared-visible (NIR-VIS) heterogeneous face recognition refers to the process of matching NIR to VIS face images. Current heterogeneous methods try to extend VIS face recognition methods to the NIR spectrum by synthesizing VIS images…

计算机视觉与模式识别 · 计算机科学 2019-02-12 Ran He , Jie Cao , Lingxiao Song , Zhenan Sun , Tieniu Tan

Image inpainting aims to fill the missing hole of the input. It is hard to solve this task efficiently when facing high-resolution images due to two reasons: (1) Large reception field needs to be handled for high-resolution image…

计算机视觉与模式识别 · 计算机科学 2023-03-16 Weihuang Liu , Xiaodong Cun , Chi-Man Pun , Menghan Xia , Yong Zhang , Jue Wang

Implicit neural representations (INR) have gained significant popularity for signal and image representation for many end-tasks, such as superresolution, 3D modeling, and more. Most INR architectures rely on sinusoidal positional encoding,…

计算机视觉与模式识别 · 计算机科学 2023-03-22 Rajhans Singh , Ankita Shukla , Pavan Turaga

$\textit{Implicit neural representations}$ (INRs) aim to learn a $\textit{continuous function}$ (i.e., a neural network) to represent an image, where the input and output of the function are pixel coordinates and RGB/Gray values,…

计算机视觉与模式识别 · 计算机科学 2023-10-24 Ke Liu , Feng Liu , Haishuai Wang , Ning Ma , Jiajun Bu , Bo Han

High dynamic range (HDR) photography is becoming increasingly popular and available by DSLR and mobile-phone cameras. While deep neural networks (DNN) have greatly impacted other domains of image manipulation, their use for HDR tone-mapping…

图像与视频处理 · 电气工程与系统科学 2021-11-02 Yael Vinker , Inbar Huberman-Spiegelglas , Raanan Fattal

Implicit neural representations (INRs) such as NeRF and SIREN encode a signal in neural network parameters and show excellent results for signal reconstruction. Using INRs for downstream tasks, such as classification, is however not…

计算机视觉与模式识别 · 计算机科学 2025-03-25 Alexander Gielisse , Jan van Gemert

Convolutional neural network (CNN) has achieved great success on image super-resolution (SR). However, most deep CNN-based SR models take massive computations to obtain high performance. Downsampling features for multi-resolution fusion is…

图像与视频处理 · 电气工程与系统科学 2022-11-30 Bin Sun , Yulun Zhang , Songyao Jiang , Yun Fu

High dynamic range (HDR) imaging is an important task in image processing that aims to generate well-exposed images in scenes with varying illumination. Although existing multi-exposure fusion methods have achieved impressive results,…

计算机视觉与模式识别 · 计算机科学 2023-05-30 Jun Xiao , Qian Ye , Tianshan Liu , Cong Zhang , Kin-Man Lam

Recently deep learning-based methods have been applied in image compression and achieved many promising results. In this paper, we propose an improved hybrid layered image compression framework by combining deep learning and the traditional…

图像与视频处理 · 电气工程与系统科学 2022-06-22 Haisheng Fu , Feng Liang , Bo Lei , Nai Bian , Qian zhang , Mohammad Akbari , Jie Liang , Chengjie Tu

Fusion-based hyperspectral image (HSI) super-resolution has become increasingly prevalent for its capability to integrate high-frequency spatial information from the paired high-resolution (HR) RGB reference image. However, most of the…

计算机视觉与模式识别 · 计算机科学 2023-02-14 Zeqiang Lai , Ying Fu , Jun Zhang

Image composition is an important operation in image processing, but the inconsistency between foreground and background significantly degrades the quality of composite image. Image harmonization, aiming to make the foreground compatible…

计算机视觉与模式识别 · 计算机科学 2020-11-03 Wenyan Cong , Jianfu Zhang , Li Niu , Liu Liu , Zhixin Ling , Weiyuan Li , Liqing Zhang

The use of Implicit Neural Representation (INR) through a hash-table has demonstrated impressive effectiveness and efficiency in characterizing intricate signals. However, current state-of-the-art methods exhibit insufficient…

计算机视觉与模式识别 · 计算机科学 2023-09-25 Hao Zhu , Fengyi Liu , Qi Zhang , Xun Cao , Zhan Ma