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相关论文: Spatial Frequency Modulation for Semantic Segmenta…

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To fully leverage spatial information for remote sensing image segmentation and address semantic edge ambiguities caused by grayscale variations (e.g., shadows and low-contrast regions), we propose the Frequency and Spatial Domains based…

计算机视觉与模式识别 · 计算机科学 2025-10-02 Jiahao Fu , Yinfeng Yu , Liejun Wang

Fake speech detection systems have become a necessity to combat against speech deepfakes. Current systems exhibit poor generalizability on out-of-domain speech samples due to lack to diverse training data. In this paper, we attempt to…

音频与语音处理 · 电气工程与系统科学 2025-08-27 Rishith Sadashiv T N , Abhishek Bedge , Saisha Suresh Bore , Jagabandhu Mishra , Mrinmoy Bhattacharjee , S R Mahadeva Prasanna

As a green and secure wireless transmission way, secure spatial modulation (SM) is becoming a hot research area. Its basic idea is to exploit both the index of activated transmit antenna and amplitude phase modulation (APM) signal to carry…

信号处理 · 电气工程与系统科学 2019-07-05 Feng Shu , Lin Liu , Yumeng Zhang , Guiyang Xia , Xiaoyu Liu , Jun Li , Shi Jin , Jiangzhou Wang

Small object detection under complex backgrounds remains a challenging task due to severe feature degradation, weak semantic representation, and inaccurate localization caused by downsampling operations and background interference. Existing…

计算机视觉与模式识别 · 计算机科学 2026-03-05 Wenguang Tao , Xiaotian Wang , Tian Yan , Yi Wang , Jie Yan

Intelligent metasurfaces are one of the favorite technologies for integrating sixth-generation (6G) networks, especially the reconfigurable intelligent surface (RIS) that has been extensively researched in various applications. In this…

信号处理 · 电气工程与系统科学 2024-01-09 Herman L. dos Santos , Martin Voigt Vejling , Taufik Abrão , Petar Popovski

Assigning geospatial objects with specific categories at the pixel level is a fundamental task in remote sensing image analysis. Along with rapid development in sensor technologies, remotely sensed images can be captured at multiple spatial…

计算机视觉与模式识别 · 计算机科学 2021-11-05 Libo Wang , Ce Zhang , Rui Li , Chenxi Duan , Xiaoliang Meng , Peter M. Atkinson

Automatic modulation classification (AMC) is to identify the modulation format of the received signal corrupted by the channel effects and noise. Most existing works focus on the impact of noise while relatively little attention has been…

信号处理 · 电气工程与系统科学 2023-10-13 Sai Huang , Yuting Chen , Jiashuo He , Shuo Chang , Zhiyong Feng

Self-supervised learning has demonstrated considerable potential in hyperspectral representation, yet its application in cross-domain transfer scenarios remains under-explored. Existing methods, however, still rely on source domain…

计算机视觉与模式识别 · 计算机科学 2026-01-27 Jianshu Chao , Tianhua Lv , Qiqiong Ma , Yunfei Qiu , Li Fang , Huifang Shen , Wei Yao

Subsequence matching has appeared to be an ideal approach for solving many problems related to the fields of data mining and similarity retrieval. It has been shown that almost any data class (audio, image, biometrics, signals) is or can be…

多媒体 · 计算机科学 2012-06-13 David Novak , Petr Volny , Pavel Zezula

Many convolutional neural networks (CNNs) rely on progressive downsampling of their feature maps to increase the network's receptive field and decrease computational cost. However, this comes at the price of losing granularity in the…

计算机视觉与模式识别 · 计算机科学 2023-05-17 Robin Hesse , Simone Schaub-Meyer , Stefan Roth

Multimodal semantic communication has great potential to enhance downstream task performance by integrating complementary information across modalities. This paper introduces ProMSC-MIS, a novel Prompt-based Multimodal Semantic…

多媒体 · 计算机科学 2025-08-28 Haoshuo Zhang , Yufei Bo , Meixia Tao

The trade-off between feature representation power and spatial localization accuracy is crucial for the dense classification/semantic segmentation of aerial images. High-level features extracted from the late layers of a neural network are…

计算机视觉与模式识别 · 计算机科学 2021-06-30 Lei Ding , Hao Tang , Lorenzo Bruzzone

To minimize the annotation costs associated with the training of semantic segmentation models, researchers have extensively investigated weakly-supervised segmentation approaches. In the current weakly-supervised segmentation methods, the…

计算机视觉与模式识别 · 计算机科学 2019-11-13 Wataru Shimoda , Keiji Yanai

In frequency domain analysis for spatial data, spectral averages based on the periodogram often play an important role in understanding spatial covariance structure, but also have complicated sampling distributions due to complex variances…

统计理论 · 数学 2025-04-29 Souvick Bera , Daniel J. Nordman , Soutir Bandyopadhyay

The concept of Compressed Sensing-aided Space-Frequency Index Modulation (CS-SFIM) is conceived for the Large-Scale Multi-User Multiple-Input Multiple-Output Uplink (LS-MU-MIMO-UL) of Next-Generation (NG) networks. Explicitly, in CS-SFIM,…

信号处理 · 电气工程与系统科学 2025-05-28 Xinyu Feng , Mohammed EL-Hajjar , Chao Xu , Lajos Hanzo

Face anti-spoofing aims to discriminate the spoofing face images (e.g., printed photos) from live ones. However, adversarial examples greatly challenge its credibility, where adding some perturbation noise can easily change the predictions.…

计算机视觉与模式识别 · 计算机科学 2023-05-03 Songlin Yang , Wei Wang , Chenye Xu , Ziwen He , Bo Peng , Jing Dong

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

Automatic modulation classification (AMC) is an essential technique for noncooperative spectrum monitoring and intelligent wireless receivers. However, practical AMC models must identify modulation formats from short and noisy I/Q…

信号处理 · 电气工程与系统科学 2026-05-26 Ruixiang Zhang , Zinan Zhou , Yezhuo Zhang , Guangyu Li , Xuanpeng Li

The use of optical spatial modulation (OSM), which has been recently emerged as a power and bandwidth efficient pulsed modulation technique for indoor optical wireless communication, is proposed as a simple, low-complexity means of…

信息论 · 计算机科学 2017-01-24 Kostas P. Peppas , P. Takis Mathiopoulos

The Few-Shot Segmentation (FSS) aims to accomplish the novel class segmentation task with a few annotated images. Current FSS research based on meta-learning focus on designing a complex interaction mechanism between the query and support…

计算机视觉与模式识别 · 计算机科学 2024-01-10 Jing Wang , Jinagyun Li , Chen Chen , Yisi Zhang , Haoran Shen , Tianxiang Zhang