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Cameras and LiDAR are essential sensors for autonomous vehicles. Camera-LiDAR data fusion compensate for deficiencies of stand-alone sensors but relies on precise extrinsic calibration. Many learning-based calibration methods predict…

计算机视觉与模式识别 · 计算机科学 2025-07-08 Ni Ou , Zhuo Chen , Xinru Zhang , Junzheng Wang

Simulation of autonomous vehicle systems requires that simulated traffic participants exhibit diverse and realistic behaviors. The use of prerecorded real-world traffic scenarios in simulation ensures realism but the rarity of safety…

Integration of information from non-auditory cues can significantly improve the performance of speech-separation models. Often such models use deep modality-specific networks to obtain unimodal features, and risk being too costly or…

声音 · 计算机科学 2025-07-11 Sidong Zhang , Shiv Shankar , Trang Nguyen , Andrea Fanelli , Madalina Fiterau

High-quality observations of hub-height winds are valuable but sparse in space and time. Simulations are widely available on regular grids but are generally biased and too coarse to inform wind-farm siting or to assess…

机器学习 · 计算机科学 2025-10-07 Xiaolong Ma , Xu Dong , Ashley Tarrant , Lei Yang , Rao Kotamarthi , Jiali Wang , Feng Yan , Rajkumar Kettimuthu

We introduce a novel, training-free method for sampling differentiable representations (diffreps) using pretrained diffusion models. Rather than merely mode-seeking, our method achieves sampling by "pulling back" the dynamics of the…

计算机视觉与模式识别 · 计算机科学 2024-12-11 Yash Savani , Marc Finzi , J. Zico Kolter

Simulation-based design, optimization, and validation of autonomous vehicles have proven to be crucial for their improvement over the years. Nevertheless, the ultimate measure of effectiveness is their successful transition from simulation…

机器人学 · 计算机科学 2025-11-21 Chinmay Vilas Samak , Tanmay Vilas Samak , Bing Li , Venkat Krovi

Estimating frequency-varying acoustic parameters is essential for enhancing immersive perception in realistic spatial audio creation. In this paper, we propose a unified framework that blindly estimates reverberation time (T60),…

音频与语音处理 · 电气工程与系统科学 2025-01-14 Hanyu Meng , Jeroen Breebaart , Jeremy Stoddard , Vidhyasaharan Sethu , Eliathamby Ambikairajah

Recent studies show that using diffusion models for time series signal reconstruction holds great promise. However, such approaches remain largely unexplored in the domain of medical time series. The unique characteristics of the…

机器学习 · 计算机科学 2026-01-13 Ci Zhang , Huayu Li , Changdi Yang , Jiangnan Xia , Yanzhi Wang , Xiaolong Ma , Jin Lu , Ao Li , Geng Yuan

Guiding unconditional diffusion models typically requires either retraining with conditional inputs or per-step gradient computations (e.g., classifier-based guidance), both of which incur substantial computational overhead. We present a…

机器学习 · 计算机科学 2026-02-13 Qingsong Wang , Mikhail Belkin , Yusu Wang

Pansharpening is a significant image fusion technique that merges the spatial content and spectral characteristics of remote sensing images to generate high-resolution multispectral images. Recently, denoising diffusion probabilistic models…

计算机视觉与模式识别 · 计算机科学 2024-04-18 Yu Zhong , Xiao Wu , Liang-Jian Deng , Zihan Cao

Mainstream solutions to Sequential Recommendation (SR) represent items with fixed vectors. These vectors have limited capability in capturing items' latent aspects and users' diverse preferences. As a new generative paradigm, Diffusion…

信息检索 · 计算机科学 2023-10-31 Zihao Li , Aixin Sun , Chenliang Li

Generative models, such as Variational Auto-Encoder (VAE) and Generative Adversarial Network (GAN), have been successfully applied in sequential recommendation. These methods require sampling from probability distributions and adopt…

信息检索 · 计算机科学 2023-06-23 Hanwen Du , Huanhuan Yuan , Zhen Huang , Pengpeng Zhao , Xiaofang Zhou

Recent advances in interactive text-to-image retrieval (I-TIR) use diffusion models to bridge the modality gap between the textual information need and the images to be searched, resulting in increased effectiveness. However, existing…

信息检索 · 计算机科学 2026-03-24 Zhuocheng Zhang , Xingwu Zhang , Kangheng Liang , Guanxuan Li , Richard Mccreadie , Zijun Long

Diffusion models are powerful tools for sampling from high-dimensional distributions by progressively transforming pure noise into structured data through a denoising process. When equipped with a guidance mechanism, these models can also…

机器学习 · 计算机科学 2026-05-04 Saeed Mohseni-Sehdeh , Walid Saad , Kei Sakaguchi , Tao Yu

Remote sensing change detection is often challenged by spatial misalignment between bi-temporal images, especially when acquisitions are separated by long seasonal or multi-year gaps. While modern convolutional and transformer-based models…

计算机视觉与模式识别 · 计算机科学 2025-11-12 Seyedehanita Madani , Vishal M. Patel

Accurate environmental representations are essential for autonomous driving, providing the foundation for safe and efficient navigation. Traditionally, high-definition (HD) maps are providing this representation of the static road…

计算机视觉与模式识别 · 计算机科学 2025-12-04 Thomas Monninger , Zihan Zhang , Steffen Staab , Sihao Ding

Audio diffusion models can synthesize high-fidelity music from text, yet achieving fine-grained control over specific musical attributes remains challenging, as their internal mechanisms for representing high-level concepts are poorly…

声音 · 计算机科学 2026-05-20 Łukasz Staniszewski , Katarzyna Zaleska , Mateusz Modrzejewski , Kamil Deja

Diffusion models have emerged as powerful tools for a wide range of vision tasks, including text-guided image generation and editing. In this work, we explore their potential for object grounding in remote sensing imagery. We propose a…

计算机视觉与模式识别 · 计算机科学 2026-04-21 Geet Sethi , Panav Shah , Ashutosh Gandhe , Soumitra Darshan Nayak

This paper describes the integration of weighted delay-and-sum beamforming with speech source localization using image processing and robot head visual servoing for source tracking. We take into consideration the fact that the directivity…

音频与语音处理 · 电气工程与系统科学 2019-06-19 José Novoa , Rodrigo Mahu , Alejandro Díaz , Jorge Wuth , Richard Stern , Nestor Becerra Yoma

During the acquisition of satellite images, there is generally a trade-off between spatial resolution and temporal resolution (acquisition frequency) due to the onboard sensors of satellite imaging systems. High-resolution satellite images…

计算机视觉与模式识别 · 计算机科学 2024-11-20 Zhaoxu Luo , Bowen Song , Liyue Shen