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Traditional Partial Least Squares Regression (PLSR) models frequently underperform when handling data characterized by uneven categories. To address the issue, this paper proposes a Data Augmentation Partial Least Squares Regression…

机器学习 · 计算机科学 2025-04-24 Haoran Chen , Jiapeng Liu , Jiafan Wang , Wenjun Shi

This work presents a cost-effective technique for designing robust adaptive beamforming algorithms based on efficient covariance matrix reconstruction with iterative spatial power spectrum (CMR-ISPS). The proposed CMR-ISPS approach…

机器学习 · 计算机科学 2023-09-06 S. Mohammadzadeh , V. H. Nascimento , R. C. de Lamare , O. Kukrer

This paper considers a reconfigurable intelligent surface (RIS)-aided millimeter wave (mmWave) downlink communication system where hybrid analog-digital beamforming is employed at the base station (BS). We formulate a power minimization…

信息论 · 计算机科学 2021-01-26 Bei Guo , Renwang Li , Meixia Tao

Inverse problems exist in many disciplines of science and engineering. In computer vision, for example, tasks such as inpainting, deblurring, and super resolution can be effectively modeled as inverse problems. Recently, denoising diffusion…

计算机视觉与模式识别 · 计算机科学 2024-12-31 Shayan Mohajer Hamidi , En-Hui Yang

Minimum Variance Distortionless Response (MVDR) is a classical adaptive beamformer that theoretically ensures the distortionless transmission of signals in the target direction, which makes it popular in real applications. Its noise…

声音 · 计算机科学 2024-09-16 Jinglin Bai , Hao Li , Xueliang Zhang , Fei Chen

In this paper, we propose the family of Iterative Methods with Adaptive Thresholding (IMAT) for sparsity promoting reconstruction of Delta Modulated (DM) voice signals. We suggest a novel missing sampling approach to delta modulation that…

信息论 · 计算机科学 2020-02-11 Mahdi Boloursaz Mashhadi , Saber Malekmohammadi , Farokh Marvasti

In this paper, we introduce Segmentation-Driven Deformation Multi-View Stereo (SD-MVS), a method that can effectively tackle challenges in 3D reconstruction of textureless areas. We are the first to adopt the Segment Anything Model (SAM) to…

计算机视觉与模式识别 · 计算机科学 2025-11-26 Zhenlong Yuan , Jiakai Cao , Zhaoxin Li , Hao Jiang , Zhaoqi Wang

Delay alignment modulation (DAM) is a novel transmission technique for wireless systems with high spatial resolution by leveraging delay compensation and path-based beamforming, to mitigate the inter-symbol interference (ISI) without…

信号处理 · 电气工程与系统科学 2024-07-31 Zhiwen Zhou , Zhiqiang Xiao , Yong Zeng

Aerial reconfigurable intelligent surfaces (ARIS), deployed on unmanned aerial vehicles (UAVs), could enhance anti-jamming communication performance by dynamically configuring channel conditions and establishing reliable air-ground links.…

信息论 · 计算机科学 2025-09-15 Junshan Luo , Shilian Wang , Boxiang He

With the rapid development of AIGC technologies, generative image steganography has attracted increasing attention due to its high imperceptibility and flexibility. However, existing generative steganography methods often maintain…

密码学与安全 · 计算机科学 2026-02-03 Yuhao Xue , Jiuan Zhou , Yu Cheng , Zhaoxia Yin

Photoacoustic microscopy (PAM) is a novel implementation of photoacoustic imaging (PAI) for visualizing the 3D bio-structure, which is realized by raster scanning of the tissue. However, as three involved critical imaging parameters,…

图像与视频处理 · 电气工程与系统科学 2023-08-10 Zhengyuan Zhang , Haoran Jin , Zesheng Zheng , Wenwen Zhang , Wenhao Lu , Feng Qin , Arunima Sharma , Manojit Pramanik , Yuanjin Zheng

This paper proposes a method for estimating a convolutional beamformer that can perform denoising and dereverberation simultaneously in an optimal way. The application of dereverberation based on a weighted prediction error (WPE) method…

音频与语音处理 · 电气工程与系统科学 2019-05-07 Tomohiro Nakatani , Keisuke Kinoshita

Side-scan sonar (SSS) is a lightweight acoustic sensor that is commonly deployed on autonomous underwater vehicles (AUVs) to provide high-resolution seafloor images. However, leveraging side-scan images for simultaneous localization and…

机器人学 · 计算机科学 2024-11-18 Jun Zhang , Yiping Xie , Li Ling , John Folkesson

PURPOSE: We develop a practical, iterative algorithm for image-reconstruction in under-sampled tomographic systems, such as digital breast tomosynthesis (DBT). METHOD: The algorithm controls image regularity by minimizing the image total…

Delay alignment modulation (DAM) has been recently proposed to enable manipulable channel delay spread for efficient single- or multi-carrier communications. In particular, with perfect delay alignment, inter-symbol interference (ISI) can…

信号处理 · 电气工程与系统科学 2022-07-11 Zhiqiang Xiao , Yong Zeng

Image registration is a fundamental medical image analysis task. Ideally, registration should focus on aligning semantically corresponding voxels, i.e., the same anatomical locations. However, existing methods often optimize similarity…

计算机视觉与模式识别 · 计算机科学 2024-02-27 Lin Tian , Zi Li , Fengze Liu , Xiaoyu Bai , Jia Ge , Le Lu , Marc Niethammer , Xianghua Ye , Ke Yan , Daikai Jin

Reconfigurable intelligent surfaces (RIS) can improve signal propagation environments by adjusting the phase of the incident signal. However, optimizing the phase shifts jointly with the beamforming vector at the access point is challenging…

信号处理 · 电气工程与系统科学 2024-10-28 Weijie Jin , Jing Zhang , Chao-Kai Wen , Shi Jin , Xiao Li , Shuangfeng Han

Dynamic spectrum management (DSM) has been recognized as a key technology to significantly improve the performance of digital subscriber line (DSL) broadband access networks. The basic concept of DSM is to coordinate transmission over…

最优化与控制 · 数学 2016-11-15 Paschalis Tsiaflakis , Ion Necoara , Johan A. K. Suykens , Marc Moonen

Dynamic MRI reconstruction from undersampled measurements is a challenging inverse problem that requires preserving both spatial reconstruction quality and temporal consistency across the frames of the cine series. While recent…

图像与视频处理 · 电气工程与系统科学 2026-05-19 Yongliang Sun , Siddhant Gautam , Chaoyan Huang , Nicole Seiberlich , Ismail Alkhouri , Saiprasad Ravishankar

In the last decades, unsupervised deep learning based methods have caught researchers attention, since in many real applications, such as medical imaging, collecting a great amount of training examples is not always feasible. Moreover, the…

图像与视频处理 · 电气工程与系统科学 2022-05-24 Pasquale Cascarano , Andrea Sebastiani , Maria Colomba Comes , Giorgia Franchini , Federica Porta