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Most action recognition solutions rely on dense sampling to precisely cover the informative temporal clip. Extensively searching temporal region is expensive for a real-world application. In this work, we focus on improving the inference…

计算机视觉与模式识别 · 计算机科学 2021-07-30 Chunhui Liu , Xinyu Li , Hao Chen , Davide Modolo , Joseph Tighe

High spatial frequency information, including fine details like textures, significantly contributes to the accuracy of semantic segmentation. However, according to the Nyquist-Shannon Sampling Theorem, high-frequency components are…

计算机视觉与模式识别 · 计算机科学 2025-07-24 Linwei Chen , Ying Fu , Lin Gu , Dezhi Zheng , Jifeng Dai

We propose an end-to-end attribute compression method for dense point clouds. The proposed method combines a frequency sampling module, an adaptive scale feature extraction module with geometry assistance, and a global hyperprior entropy…

图像与视频处理 · 电气工程与系统科学 2024-09-17 Xiaolong Mao , Hui Yuan , Tian Guo , Shiqi Jiang , Raouf Hamzaoui , Sam Kwong

This paper presents a computationally efficient approach to blind source separation (BSS) of audio signals, applicable even when there are more sources than microphones (i.e., the underdetermined case). When there are as many sources as…

声音 · 计算机科学 2021-01-22 Nobutaka Ito , Rintaro Ikeshita , Hiroshi Sawada , Tomohiro Nakatani

In the compressive spectral imaging (CSI) framework, different architectures have been proposed to recover high-resolution spectral images from compressive measurements. Since CSI architectures compactly capture the relevant information of…

图像与视频处理 · 电气工程与系统科学 2020-12-02 Juan Marcos Ramirez , Jose Ignacio Martinez-Torre , Henry Arguello

This paper proposes a novel communication-efficient split learning (SL) framework, named SplitFC, which reduces the communication overhead required for transmitting intermediate feature and gradient vectors during the SL training process.…

分布式、并行与集群计算 · 计算机科学 2025-01-06 Yongjeong Oh , Jaeho Lee , Christopher G. Brinton , Yo-Seb Jeon

Implicit neural representations have recently been extended to represent convolutional neural network weights via neural representation for neural networks, offering promising parameter compression benefits. However, standard multi-layer…

机器学习 · 计算机科学 2025-09-10 Qihu Xie , Yuan Li , Yi Kang

Inspired by the facts that retinal cells actually segregate the visual scene into different attributes (e.g., spatial details, temporal motion) for respective neuronal processing, we propose to first decompose the input video into…

计算机视觉与模式识别 · 计算机科学 2024-01-17 Ming Lu , Tong Chen , Dandan Ding , Fengqing Zhu , Zhan Ma

Anomaly Detection (AD) on medical images enables a model to recognize any type of anomaly pattern without lesion-specific supervised learning. Data augmentation based methods construct pseudo-healthy images by "pasting" fake lesions on real…

图像与视频处理 · 电气工程与系统科学 2022-04-19 Haote Xu , Yunlong Zhang , Liyan Sun , Chenxin Li , Yue Huang , Xinghao Ding

This work presents blind constrained constant modulus (CCM) adaptive algorithms based on the set-membership filtering (SMF) concept and incorporates dynamic bounds {for interference suppression} applications. We develop stochastic gradient…

信息论 · 计算机科学 2015-06-12 Rodrigo C. de Lamare , Paulo S. R. Diniz

The mathematical theory of compressed sensing (CS) asserts that one can acquire signals from measurements whose rate is much lower than the total bandwidth. Whereas the CS theory is now well developed, challenges concerning hardware…

The learned image compression (LIC) methods have already surpassed traditional techniques in compressing natural scene (NS) images. However, directly applying these methods to screen content (SC) images, which possess distinct…

图像与视频处理 · 电气工程与系统科学 2025-02-24 Shiqi Jiang , Hui Yuan , Shuai Li , Huanqiang Zeng , Sam Kwong

Audio compression has become one of the basic multimedia technologies. Choosing an efficient compression scheme that is capable of preserving the signal quality while providing a high compression ratio is desirable in the different…

信息论 · 计算机科学 2014-03-13 Hossam M. Kasem , Maha El-Sabrouty

The advent of neuralmorphic spike cameras has garnered significant attention for their ability to capture continuous motion with unparalleled temporal resolution.However, this imaging attribute necessitates considerable resources for binary…

计算机视觉与模式识别 · 计算机科学 2025-03-05 Kexiang Feng , Chuanmin Jia , Siwei Ma , Wen Gao

Deep learning-based methods have made significant achievements in music source separation. However, obtaining good results while maintaining a low model complexity remains challenging in super wide-band music source separation. Previous…

音频与语音处理 · 电气工程与系统科学 2024-01-25 Weinan Tong , Jiaxu Zhu , Jun Chen , Shiyin Kang , Tao Jiang , Yang Li , Zhiyong Wu , Helen Meng

Voice spoofing attacks pose a significant threat to automated speaker verification systems. Existing anti-spoofing methods often simulate specific attack types, such as synthetic or replay attacks. However, in real-world scenarios, the…

声音 · 计算机科学 2023-09-19 Awais Khan , Khalid Mahmood Malik , Shah Nawaz

Accurate spectrum prediction is crucial for dynamic spectrum access (DSA) and resource allocation. However, due to the unique characteristics of spectrum data, existing methods based on the time or frequency domain often struggle to…

机器学习 · 计算机科学 2025-08-26 Yanghao Qin , Bo Zhou , Guangliang Pan , Qihui Wu , Meixia Tao

Intelligent spectrum management is crucial for improving spectrum efficiency and achieving secure utilization of spectrum resources. However, existing intelligent spectrum management methods, typically based on small-scale models, suffer…

信号处理 · 电气工程与系统科学 2025-12-16 Fuhui Zhou , Chunyu Liu , Hao Zhang , Wei Wu , Qihui Wu , Tony Q. S. Quek , Chan-Byoung Chae

Developing channel-adaptive deep joint source-channel coding (JSCC) systems is a critical challenge in wireless image transmission. While recent advancements have been made, most existing approaches are designed for static channel…

图像与视频处理 · 电气工程与系统科学 2024-12-12 Hanlei Li , Guangyi Zhang , Kequan Zhou , Yunlong Cai , Guanding Yu

Slow Feature Analysis (SFA) extracts features representing the underlying causes of changes within a temporally coherent high-dimensional raw sensory input signal. Our novel incremental version of SFA (IncSFA) combines incremental Principal…

人工智能 · 计算机科学 2012-10-11 Varun Raj Kompella , Matthew Luciw , Juergen Schmidhuber
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