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Due to the over-fitting problem caused by imbalance samples, there is still room to improve the performance of data-driven automatic modulation classification (AMC) in noisy scenarios. By fully considering the signal characteristics, an AMC…

信号处理 · 电气工程与系统科学 2022-03-08 Hao Shi , Qi Peng , Yiqi Zhuang

The performances of Sound Event Detection (SED) systems are greatly limited by the difficulty in generating large strongly labeled dataset. In this work, we used two main approaches to overcome the lack of strongly labeled data. First, we…

音频与语音处理 · 电气工程与系统科学 2021-09-15 Hyeonuk Nam , Byeong-Yun Ko , Gyeong-Tae Lee , Seong-Hu Kim , Won-Ho Jung , Sang-Min Choi , Yong-Hwa Park

Deepfake detectors face growing challenges in generalization as new image synthesis techniques emerge. In particular, deepfakes generated by diffusion models are highly photorealistic and often evade detectors trained on GAN-based…

计算机视觉与模式识别 · 计算机科学 2026-04-17 Hongyuan Qi , Wenjin Hou , Hehe Fan , Jun Xiao

Humans use context to assess the veracity of information. However, current audio deepfake detectors only analyze the audio file without considering either context or transcripts. We create and analyze a Journalist-provided Deepfake Dataset…

Visual object tracking remains an active research field in computer vision due to persisting challenges with various problem-specific factors in real-world scenes. Many existing tracking methods based on discriminative correlation filters…

计算机视觉与模式识别 · 计算机科学 2021-09-21 Seyed Mojtaba Marvasti-Zadeh , Hossein Ghanei-Yakhdan , Shohreh Kasaei , Kamal Nasrollahi , Thomas B. Moeslund

The rapid advancement of deepfake technology poses a significant threat to digital media integrity. Deepfakes, synthetic media created using AI, can convincingly alter videos and audio to misrepresent reality. This creates risks of…

计算机视觉与模式识别 · 计算机科学 2024-10-21 Kashish Gandhi , Prutha Kulkarni , Taran Shah , Piyush Chaudhari , Meera Narvekar , Kranti Ghag

It becomes urgent to design effective anti-spoofing algorithms for vulnerable automatic speaker verification systems due to the advancement of high-quality playback devices. Current studies mainly treat anti-spoofing as a binary…

计算机视觉与模式识别 · 计算机科学 2023-01-19 Yongqiang Dou , Haocheng Yang , Maolin Yang , Yanyan Xu , Dengfeng Ke

State-of-the-art methods for audio generation suffer from fingerprint artifacts and repeated inconsistencies across temporal and spectral domains. Such artifacts could be well captured by the frequency domain analysis over the spectrogram.…

声音 · 计算机科学 2021-06-29 Yang Gao , Tyler Vuong , Mahsa Elyasi , Gaurav Bharaj , Rita Singh

In the digital age, the emergence of deepfakes and synthetic media presents a significant threat to societal and political integrity. Deepfakes based on multi-modal manipulation, such as audio-visual, are more realistic and pose a greater…

声音 · 计算机科学 2024-08-08 Vinaya Sree Katamneni , Ajita Rattani

Deep neural networks enable real-time monitoring of in-vehicle drivers, facilitating the timely prediction of distractions, fatigue, and potential hazards. This technology is now integral to intelligent transportation systems. Recent…

计算机视觉与模式识别 · 计算机科学 2025-01-06 Cong Duan , Zixuan Liu , Jiahao Xia , Minghai Zhang , Jiacai Liao , Libo Cao

In this work, we propose a novel unsupervised deep learning model to address multi-focus image fusion problem. First, we train an encoder-decoder network in unsupervised manner to acquire deep feature of input images. And then we utilize…

计算机视觉与模式识别 · 计算机科学 2020-09-25 Boyuan Ma , Xiaojuan Ban , Haiyou Huang , Yu Zhu

Most of previous deepfake detection researches bent their efforts to describe and discriminate artifacts in human perceptible ways, which leave a bias in the learned networks of ignoring some critical invariance features intra-class and…

计算机视觉与模式识别 · 计算机科学 2022-05-17 Ruiqi Zha , Zhichao Lian , Qianmu Li , Siqi Gu

LiDAR and camera fusion techniques are promising for achieving 3D object detection in autonomous driving. Most multi-modal 3D object detection frameworks integrate semantic knowledge from 2D images into 3D LiDAR point clouds to enhance…

计算机视觉与模式识别 · 计算机科学 2023-06-21 Shaoqing Xu , Fang Li , Ziying Song , Jin Fang , Sifen Wang , Zhi-Xin Yang

Feature fusion is a commonly used strategy in image retrieval tasks, which aggregates the matching responses of multiple visual features. Feasible sets of features can be either descriptors (SIFT, HSV) for an entire image or the same…

信息检索 · 计算机科学 2018-11-01 Zhongdao Wang , Liang Zheng , Shengjin Wang

With the proliferation of Audio Language Model (ALM) based deepfake audio, there is an urgent need for generalized detection methods. ALM-based deepfake audio currently exhibits widespread, high deception, and type versatility, posing a…

Previous RGB-D salient object detection (SOD) methods have widely adopted deep learning tools to automatically strike a trade-off between RGB and D (depth), whose key rationale is to take full advantage of their complementary nature, aiming…

计算机视觉与模式识别 · 计算机科学 2020-08-11 Xuehao Wang , Shuai Li , Chenglizhao Chen , Aimin Hao , Hong Qin

AI computation in healthcare faces significant challenges when clinical datasets are limited and heterogeneous. Integrating datasets from multiple sources and different equipments is critical for effective AI computation but is complicated…

信号处理 · 电气工程与系统科学 2025-04-07 Baozhuo Su , Qingli Dou , Kang Liu , Zhengxian Qu , Jerry Deng , Ting Tan , Yanan Gu

Modern speaker verification models use deep neural networks to encode utterance audio into discriminative embedding vectors. During the training process, these networks are typically optimized to differentiate arbitrary speakers. This…

音频与语音处理 · 电气工程与系统科学 2024-02-09 Hua Shen , Yuguang Yang , Guoli Sun , Ryan Langman , Eunjung Han , Jasha Droppo , Andreas Stolcke

Many hand-held or mixed reality devices are used with a single sensor for 3D reconstruction, although they often comprise multiple sensors. Multi-sensor depth fusion is able to substantially improve the robustness and accuracy of 3D…

计算机视觉与模式识别 · 计算机科学 2022-09-22 Erik Sandström , Martin R. Oswald , Suryansh Kumar , Silvan Weder , Fisher Yu , Cristian Sminchisescu , Luc Van Gool

The rapid advancement of Audio Large Language Models (ALLMs) has enabled cost-effective, high-fidelity generation and manipulation of both speech and non-speech audio, including sound effects, singing voices, and music. While these…