Search Results for author: Yuhao Liu

Found 25 papers, 6 papers with code

Finite-Time Analysis of Discrete-Time Stochastic Interpolants

no code implementations13 Feb 2025 Yuhao Liu, Yu Chen, Rui Hu, Longbo Huang

The stochastic interpolant framework offers a powerful approach for constructing generative models based on ordinary differential equations (ODEs) or stochastic differential equations (SDEs) to transform arbitrary data distributions.

Scalable Random Feature Latent Variable Models

1 code implementation23 Oct 2024 Ying Li, Zhidi Lin, Yuhao Liu, Michael Minyi Zhang, Pablo M. Olmos, Petar M. Djurić

To address these issues, we introduce a stick-breaking construction for DP to obtain an explicit PDF and a novel VBI algorithm called ``block coordinate descent variational inference" (BCD-VI).

Bayesian Inference Computational Efficiency +1

Boosting Weakly-Supervised Referring Image Segmentation via Progressive Comprehension

no code implementations2 Oct 2024 Zaiquan Yang, Yuhao Liu, Jiaying Lin, Gerhard Hancke, Rynson W. H. Lau

These short phrases are taken as target-related cues and fed into a Conditional Referring Module (CRM) in multiple stages, to allow updating the referring text embedding and enhance the response map for target localization in a multi-stage manner.

Image Segmentation Large Language Model +2

Generative Precipitation Downscaling using Score-based Diffusion with Wasserstein Regularization

no code implementations1 Oct 2024 Yuhao Liu, James Doss-Gollin, Guha Balakrishnan, Ashok Veeraraghavan

Understanding local risks from extreme rainfall, such as flooding, requires both long records (to sample rare events) and high-resolution products (to assess localized hazards).

Denoising

Decentralizing Coherent Joint Transmission Precoding via Fast ADMM with Deterministic Equivalents

no code implementations28 Mar 2024 Xinyu Bian, Yuhao Liu, Yizhou Xu, Tianqi Hou, Wenjie Wang, Yuyi Mao, Jun Zhang

Simulation results demonstrate the effectiveness of our proposed decentralized precoding scheme, which achieves performance similar to the optimal centralized precoding scheme.

Decentralizing Coherent Joint Transmission Precoding via Deterministic Equivalents

no code implementations15 Mar 2024 Yuhao Liu, Xinyu Bian, Yizhou Xu, Tianqi Hou, Wenjie Wang, Yuyi Mao, Jun Zhang

In order to control the inter-cell interference for a multi-cell multi-user multiple-input multiple-output network, we consider the precoder design for coordinated multi-point with downlink coherent joint transmission.

Recasting Regional Lighting for Shadow Removal

no code implementations1 Feb 2024 Yuhao Liu, Zhanghan Ke, Ke Xu, Fang Liu, Zhenwei Wang, Rynson W. H. Lau

Based on this observation, we propose to condition the restoration of attenuated textures on the corrected local lighting in the shadow region.

Object Shadow Removal

ISLAND: Interpolating Land Surface Temperature using land cover

1 code implementation21 Sep 2023 Yuhao Liu, Pranavesh Panakkal, Sylvia Dee, Guha Balakrishnan, Jamie Padgett, Ashok Veeraraghavan

Cloud occlusion is a common problem in the field of remote sensing, particularly for retrieving Land Surface Temperature (LST).

Blocking Time Series Analysis

Referring Image Segmentation Using Text Supervision

1 code implementation ICCV 2023 Fang Liu, Yuhao Liu, Yuqiu Kong, Ke Xu, Lihe Zhang, BaoCai Yin, Gerhard Hancke, Rynson Lau

Hence, we propose a novel weakly-supervised RIS framework to formulate the target localization problem as a classification process to differentiate between positive and negative text expressions.

Image Segmentation Object Localization +4

Digital Twin Brain: a simulation and assimilation platform for whole human brain

no code implementations2 Aug 2023 Wenlian Lu, Longbin Zeng, Xin Du, Wenyong Zhang, Shitong Xiang, Huarui Wang, Jiexiang Wang, Mingda Ji, Yubo Hou, Minglong Wang, Yuhao Liu, Zhongyu Chen, Qibao Zheng, Ningsheng Xu, Jianfeng Feng

In comparison to most brain simulations with a homogeneous global structure, we highlight that the sparseness, couplingness and heterogeneity in the sMRI, DTI and PET data of the brain has an essential impact on the efficiency of brain simulation, which is proved from the scaling experiments that the DTB of human brain simulation is communication-intensive and memory-access intensive computing systems rather than computation-intensive.

NeRT: Implicit Neural Representations for General Unsupervised Turbulence Mitigation

no code implementations1 Aug 2023 Weiyun Jiang, Yuhao Liu, Vivek Boominathan, Ashok Veeraraghavan

The atmospheric and water turbulence mitigation problems have emerged as challenging inverse problems in computer vision and optics communities over the years.

Neural Preset for Color Style Transfer

1 code implementation CVPR 2023 Zhanghan Ke, Yuhao Liu, Lei Zhu, Nanxuan Zhao, Rynson W. H. Lau

In this paper, we present a Neural Preset technique to address the limitations of existing color style transfer methods, including visual artifacts, vast memory requirement, and slow style switching speed.

4k Color Normalization +4

Gaussian Process-Gated Hierarchical Mixtures of Experts

2 code implementations9 Feb 2023 Yuhao Liu, Marzieh Ajirak, Petar Djuric

Unlike other mixtures of experts with gating models linear in the input, our model employs gating functions built with Gaussian processes (GPs).

Gaussian Processes Variational Inference

Mismatched estimation of non-symmetric rank-one matrices corrupted by structured noise

no code implementations7 Feb 2023 Teng Fu, Yuhao Liu, Jean Barbier, Marco Mondelli, Shansuo Liang, Tianqi Hou

We study the performance of a Bayesian statistician who estimates a rank-one signal corrupted by non-symmetric rotationally invariant noise with a generic distribution of singular values.

Sequential Estimation of Gaussian Process-based Deep State-Space Models

no code implementations29 Jan 2023 Yuhao Liu, Marzieh Ajirak, Petar Djuric

We consider the problem of sequential estimation of the unknowns of state-space and deep state-space models that include estimation of functions and latent processes of the models.

Gaussian Processes State Space Models

Data-driven intelligent computational design for products: Method, techniques, and applications

no code implementations29 Jan 2023 Maolin Yang, Pingyu Jiang, Tianshuo Zang, Yuhao Liu

Data-driven intelligent computational design (DICD) is a research hotspot emerged under the context of fast-developing artificial intelligence.

Feature Engineering Retrieval

Structure-Informed Shadow Removal Networks

no code implementations9 Jan 2023 Yuhao Liu, Qing Guo, Lan Fu, Zhanghan Ke, Ke Xu, Wei Feng, Ivor W. Tsang, Rynson W. H. Lau

Hence, in this paper, we propose to remove shadows at the image structure level.

Shadow Removal

Wider and Higher: Intensive Integration and Global Foreground Perception for Image Matting

no code implementations13 Oct 2022 Yu Qiao, Ziqi Wei, Yuhao Liu, Yuxin Wang, Dongsheng Zhou, Qiang Zhang, Xin Yang

This paper reviews recent deep-learning-based matting research and conceives our wider and higher motivation for image matting.

Decoder Image Matting

Hierarchical and Progressive Image Matting

no code implementations13 Oct 2022 Yu Qiao, Yuhao Liu, Ziqi Wei, Yuxin Wang, Qiang Cai, Guofeng Zhang, Xin Yang

In this paper, we propose an end-to-end Hierarchical and Progressive Attention Matting Network (HAttMatting++), which can better predict the opacity of the foreground from single RGB images without additional input.

Image Matting SSIM

Prior-Induced Information Alignment for Image Matting

no code implementations28 Jun 2021 Yuhao Liu, Jiake Xie, Yu Qiao, Yong Tang and, Xin Yang

Image matting is an ill-posed problem that aims to estimate the opacity of foreground pixels in an image.

Image Matting

Multi-scale Information Assembly for Image Matting

no code implementations7 Jan 2021 Yu Qiao, Yuhao Liu, Qiang Zhu, Xin Yang, Yuxin Wang, Qiang Zhang, Xiaopeng Wei

Image matting is a long-standing problem in computer graphics and vision, mostly identified as the accurate estimation of the foreground in input images.

Image Matting

Tripartite Information Mining and Integration for Image Matting

1 code implementation ICCV 2021 Yuhao Liu, Jiake Xie, Xiao Shi, Yu Qiao, Yujie Huang, Yong Tang, Xin Yang

Regarding the nature of image matting, most researches have focused on solutions for transition regions.

2k Image Matting

Deep learning based cloud detection for medium and high resolution remote sensing images of different sensors

no code implementations13 Oct 2018 Zhiwei Li, Huanfeng Shen, Qing Cheng, Yuhao Liu, Shucheng You, Zongyi He

In this paper, we propose a deep learning based cloud detection method named multi-scale convolutional feature fusion (MSCFF) for remote sensing images of different sensors.

Cloud Detection

Deep Structured Models For Group Activity Recognition

no code implementations12 Jun 2015 Zhiwei Deng, Mengyao Zhai, Lei Chen, Yuhao Liu, Srikanth Muralidharan, Mehrsan Javan Roshtkhari, Greg Mori

This paper presents a deep neural-network-based hierarchical graphical model for individual and group activity recognition in surveillance scenes.

Group Activity Recognition

Cannot find the paper you are looking for? You can Submit a new open access paper.