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Lossy compression introduces complex compression artifacts, particularly the blocking artifacts, ringing effects and blurring. Existing algorithms either focus on removing blocking artifacts and produce blurred output, or restores sharpened…

Computer Vision and Pattern Recognition · Computer Science 2015-04-28 Chao Dong , Yubin Deng , Chen Change Loy , Xiaoou Tang

Compressive spectral imaging (CSI) has attracted significant attention since it employs synthetic apertures to codify spatial and spectral information, sensing only 2D projections of the 3D spectral image. However, these optical…

Image and Video Processing · Electrical Eng. & Systems 2023-06-28 Roman Jacome , Jorge Bacca , Henry Arguello

Lossy image compression algorithms are pervasively used to reduce the size of images transmitted over the web and recorded on data storage media. However, we pay for their high compression rate with visual artifacts degrading the user…

Computer Vision and Pattern Recognition · Computer Science 2018-01-30 Lukas Cavigelli , Pascal Hager , Luca Benini

We present a frame interpolation algorithm that synthesizes multiple intermediate frames from two input images with large in-between motion. Recent methods use multiple networks to estimate optical flow or depth and a separate network…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Fitsum Reda , Janne Kontkanen , Eric Tabellion , Deqing Sun , Caroline Pantofaru , Brian Curless

Accurate prediction of flow fields around underwater vehicles undergoing vertical-plane oblique motions is critical for hydrodynamic analysis, but it often requires computationally expensive CFD simulations. This study proposes a…

Fluid Dynamics · Physics 2026-01-07 Tianli Hu , Chengsheng Wu , Jun Ding , Xing Wang , Yu Yang , Jianchun Wang

Deep convolutional neural network has demonstrated its capability of learning a deterministic mapping for the desired imagery effect. However, the large variety of user flavors motivates the possibility of continuous transition among…

Computer Vision and Pattern Recognition · Computer Science 2018-11-27 Xintao Wang , Ke Yu , Chao Dong , Xiaoou Tang , Chen Change Loy

Video frame interpolation involves the synthesis of new frames from existing ones. Convolutional neural networks (CNNs) have been at the forefront of the recent advances in this field. One popular CNN-based approach involves the application…

Computer Vision and Pattern Recognition · Computer Science 2022-05-16 Issa Khalifeh , Marc Gorriz Blanch , Ebroul Izquierdo , Marta Mrak

Existing video frame interpolation (VFI) methods often adopt a frame-centric approach, processing videos as independent short segments (e.g., triplets), which leads to temporal inconsistencies and motion artifacts. To overcome this, we…

Computer Vision and Pattern Recognition · Computer Science 2026-03-31 Xinyu Peng , Han Li , Yuyang Huang , Ziyang Zheng , Yaoming Wang , Xin Chen , Wenrui Dai , Chenglin Li , Junni Zou , Hongkai Xiong

Motion-based video frame interpolation (VFI) methods have made remarkable progress with the development of deep convolutional networks over the past years. While their performance is often jeopardized by the inaccuracy of flow map…

Computer Vision and Pattern Recognition · Computer Science 2022-11-23 Pengcheng Lei , Faming Fang , Guixu Zhang

As one of most fascinating machine learning techniques, deep neural network (DNN) has demonstrated excellent performance in various intelligent tasks such as image classification. DNN achieves such performance, to a large extent, by…

Computer Vision and Pattern Recognition · Computer Science 2018-03-16 Zihao Liu , Tao Liu , Wujie Wen , Lei Jiang , Jie Xu , Yanzhi Wang , Gang Quan

To facilitate efficient embedded and hardware implementations of deep neural networks (DNNs), two important categories of DNN model compression techniques: weight pruning and weight quantization are investigated. The former leverages the…

Machine Learning · Computer Science 2019-01-03 Ao Ren , Tianyun Zhang , Shaokai Ye , Jiayu Li , Wenyao Xu , Xuehai Qian , Xue Lin , Yanzhi Wang

The recent advances in deep neural networks (DNNs) make them attractive for embedded systems. However, it can take a long time for DNNs to make an inference on resource-constrained computing devices. Model compression techniques can address…

Machine Learning · Computer Science 2018-10-23 Qing Qin , Jie Ren , Jialong Yu , Ling Gao , Hai Wang , Jie Zheng , Yansong Feng , Jianbin Fang , Zheng Wang

Continuous normalizing flows (CNFs) can model data distributions with expressive infinite-length architectures. But this modeling involves computationally expensive process of solving an ordinary differential equation (ODE) during maximum…

Machine Learning · Computer Science 2024-10-15 Denis Gudovskiy , Tomoyuki Okuno , Yohei Nakata

The non-uniformly distributed nature of the 3D dynamic point cloud (DPC) brings significant challenges to its high-efficient inter-frame compression. This paper proposes a novel 3D sparse convolution-based Deep Dynamic Point Cloud…

Computer Vision and Pattern Recognition · Computer Science 2022-05-04 Tingyu Fan , Linyao Gao , Yiling Xu , Zhu Li , Dong Wang

Frame interpolation attempts to synthesise frames given one or more consecutive video frames. In recent years, deep learning approaches, and notably convolutional neural networks, have succeeded at tackling low- and high-level computer…

Computer Vision and Pattern Recognition · Computer Science 2019-02-27 Joost van Amersfoort , Wenzhe Shi , Alejandro Acosta , Francisco Massa , Johannes Totz , Zehan Wang , Jose Caballero

Due to the ability of feature extraction, deep learning (DL)-based methods have been recently applied to channel state information (CSI) compression feedback in massive multiple-input multiple-output (MIMO) systems. Existing DL-based CSI…

Information Theory · Computer Science 2023-06-13 Shaoqing Zhang , Wei Xu , Shi Jin , Xiaohu You , Derrick Wing Kwan Ng , Li-Chun Wang

Emerging high-quality face restoration (FR) methods often utilize pre-trained GAN models (\textit{i.e.}, StyleGAN2) as GAN Prior. However, these methods usually struggle to balance realness and fidelity when facing various degradation…

Computer Vision and Pattern Recognition · Computer Science 2022-03-17 Yinhuai Wang , Yujie Hu , Jian Zhang

Video frame interpolation (VFI) aims to improve the temporal resolution of a video sequence. Most of the existing deep learning based VFI methods adopt off-the-shelf optical flow algorithms to estimate the bidirectional flows and…

Computer Vision and Pattern Recognition · Computer Science 2022-03-21 Tao Yang , Peiran Ren , Xuansong Xie , Xiansheng Hua , Lei Zhang

Deep neural network (DNN) models continue to grow in size and complexity, demanding higher computational power to enable real-time inference. To efficiently deliver such computational demands, hardware accelerators are being developed and…

Hardware Architecture · Computer Science 2020-12-01 Robert Guirado , Hyoukjun Kwon , Sergi Abadal , Eduard Alarcón , Tushar Krishna

In order to fully exploit the advantages of massive multiple-input multiple-output (mMIMO), it is critical for the transmitter to accurately acquire the channel state information (CSI). Deep learning (DL)-based methods have been proposed…

Information Theory · Computer Science 2022-04-26 Ziqing Yin , Wei Xu , Renjie Xie , Shaoqing Zhang , Derrick Wing Kwan Ng , Xiaohu You