Search Results for author: Kang Chen

Found 34 papers, 18 papers with code

FengWu-W2S: A deep learning model for seamless weather-to-subseasonal forecast of global atmosphere

no code implementations15 Nov 2024 Fenghua Ling, Kang Chen, Jiye Wu, Tao Han, Jing-Jia Luo, Wanli Ouyang, Lei Bai

Seamless forecasting that produces warning information at continuum timescales based on only one system is a long-standing pursuit for weather-climate service.

USP-Gaussian: Unifying Spike-based Image Reconstruction, Pose Correction and Gaussian Splatting

1 code implementation15 Nov 2024 Kang Chen, Jiyuan Zhang, Zecheng Hao, Yajing Zheng, Tiejun Huang, Zhaofei Yu

Leveraging the multi-view consistency afforded by 3DGS and the motion capture capability of the spike camera, our framework enables a joint iterative optimization that seamlessly integrates information between the spike-to-image network and 3DGS.

3D Reconstruction Camera Pose Estimation +2

IPL: Leveraging Multimodal Large Language Models for Intelligent Product Listing

no code implementations22 Oct 2024 Kang Chen, Qingheng Zhang, Chengbao Lian, Yixin Ji, Xuwei Liu, Shuguang Han, Guoqiang Wu, Fei Huang, Jufeng Chen

To this end, we develop IPL, an Intelligent Product Listing tool tailored to generate descriptions using various product attributes such as category, brand, color, condition, etc.

Hallucination RAG

Variable Aperture Bokeh Rendering via Customized Focal Plane Guidance

1 code implementation18 Oct 2024 Kang Chen, Shijun Yan, Aiwen Jiang, Han Li, Zhifeng Wang

benchmark dataset and our constructed dataset VABD have demonstrated that the customized focal plane together aperture prompt can bootstrap model to simulate realistic bokeh effect.

Bokeh Effect Rendering

WeatherFormer: Empowering Global Numerical Weather Forecasting with Space-Time Transformer

no code implementations21 Sep 2024 Junchao Gong, Tao Han, Kang Chen, Lei Bai

Numerical Weather Prediction (NWP) system is an infrastructure that exerts considerable impacts on modern society. Traditional NWP system, however, resolves it by solving complex partial differential equations with a huge computing cluster, resulting in tons of carbon emission.

Data Augmentation Weather Forecasting

Self-supervised Anomaly Detection Pretraining Enhances Long-tail ECG Diagnosis

1 code implementation30 Aug 2024 Aofan Jiang, Chaoqin Huang, Qing Cao, Yuchen Xu, Zi Zeng, Kang Chen, Ya zhang, Yanfeng Wang

Current computer-aided ECG diagnostic systems struggle with the underdetection of rare but critical cardiac anomalies due to the imbalanced nature of ECG datasets.

Self-Supervised Anomaly Detection Specificity +1

SpikeGS: 3D Gaussian Splatting from Spike Streams with High-Speed Camera Motion

no code implementations14 Jul 2024 Jiyuan Zhang, Kang Chen, Shiyan Chen, Yajing Zheng, Tiejun Huang, Zhaofei Yu

To address this issue, we make the first attempt to introduce the 3D Gaussian Splatting (3DGS) into spike cameras in high-speed capture, providing 3DGS as dense and continuous clues of views, then constructing SpikeGS.

3D Reconstruction Novel View Synthesis

FNP: Fourier Neural Processes for Arbitrary-Resolution Data Assimilation

no code implementations3 Jun 2024 Kun Chen, Tao Chen, Peng Ye, Hao Chen, Kang Chen, Tao Han, Wanli Ouyang, Lei Bai

Data assimilation is a vital component in modern global medium-range weather forecasting systems to obtain the best estimation of the atmospheric state by combining the short-term forecast and observations.

Weather Forecasting

SpikeMM: Flexi-Magnification of High-Speed Micro-Motions

no code implementations1 Jun 2024 Baoyue Zhang, Yajing Zheng, Shiyan Chen, Jiyuan Zhang, Kang Chen, Zhaofei Yu, Tiejun Huang

This innovative approach comprehensively records temporal and spatial visual information, rendering it particularly suitable for magnifying high-speed micro-motions. This paper introduces SpikeMM, a pioneering spike-based algorithm tailored specifically for high-speed motion magnification.

Fault Detection Motion Magnification +1

LAGA: Layered 3D Avatar Generation and Customization via Gaussian Splatting

no code implementations21 May 2024 Jia Gong, Shenyu Ji, Lin Geng Foo, Kang Chen, Hossein Rahmani, Jun Liu

To generate high-quality garments for each layer, we introduce a coarse-to-fine strategy for diverse garment generation and a novel dual-SDS loss function to maintain coherence between the generated garments and avatar components, including the human body and other garments.

Anomaly Detection in Electrocardiograms: Advancing Clinical Diagnosis Through Self-Supervised Learning

no code implementations7 Apr 2024 Aofan Jiang, Chaoqin Huang, Qing Cao, Yuchen Xu, Zi Zeng, Kang Chen, Ya zhang, Yanfeng Wang

We introduce a novel self-supervised learning framework for ECG AD, utilizing a vast dataset of normal ECGs to autonomously detect and localize cardiac anomalies.

Anomaly Localization Self-Supervised Anomaly Detection +3

SpikeReveal: Unlocking Temporal Sequences from Real Blurry Inputs with Spike Streams

2 code implementations14 Mar 2024 Kang Chen, Shiyan Chen, Jiyuan Zhang, Baoyue Zhang, Yajing Zheng, Tiejun Huang, Zhaofei Yu

Our approach begins with the formulation of a spike-guided deblurring model that explores the theoretical relationships among spike streams, blurry images, and their corresponding sharp sequences.

Deblurring Knowledge Distillation +1

ExtremeCast: Boosting Extreme Value Prediction for Global Weather Forecast

1 code implementation2 Feb 2024 Wanghan Xu, Kang Chen, Tao Han, Hao Chen, Wanli Ouyang, Lei Bai

Data-driven weather forecast based on machine learning (ML) has experienced rapid development and demonstrated superior performance in the global medium-range forecast compared to traditional physics-based dynamical models.

Value prediction

Efficient Image Deblurring Networks based on Diffusion Models

1 code implementation11 Jan 2024 Kang Chen, Yuanjie Liu

This article presents a sliding window model for defocus deblurring, named Swintormer, which achieves the best performance to date with remarkably low memory usage.

Deblurring Image Deblurring

Capturing Closely Interacted Two-Person Motions with Reaction Priors

no code implementations CVPR 2024 Qi Fang, Yinghui Fan, Yanjun Li, Junting Dong, Dingwei Wu, Weidong Zhang, Kang Chen

Unlike less-interacted motions closely interacted motions contain frequently occurring inter-human occlusions which pose significant challenges to existing capturing algorithms.

2k Decoder

Towards an end-to-end artificial intelligence driven global weather forecasting system

1 code implementation18 Dec 2023 Kun Chen, Lei Bai, Fenghua Ling, Peng Ye, Tao Chen, Jing-Jia Luo, Hao Chen, Yi Xiao, Kang Chen, Tao Han, Wanli Ouyang

Initial states are typically generated by traditional data assimilation components, which are computational expensive and time-consuming.

Weather Forecasting

Textual Prompt Guided Image Restoration

1 code implementation11 Dec 2023 Qiuhai Yan, Aiwen Jiang, Kang Chen, Long Peng, Qiaosi Yi, Chunjie Zhang

In this paper, an effective textual prompt guided image restoration model has been proposed.

Denoising Image Restoration +1

GPT-4V with Emotion: A Zero-shot Benchmark for Generalized Emotion Recognition

1 code implementation7 Dec 2023 Zheng Lian, Licai Sun, Haiyang Sun, Kang Chen, Zhuofan Wen, Hao Gu, Bin Liu, JianHua Tao

To bridge this gap, we present the quantitative evaluation results of GPT-4V on 21 benchmark datasets covering 6 tasks: visual sentiment analysis, tweet sentiment analysis, micro-expression recognition, facial emotion recognition, dynamic facial emotion recognition, and multimodal emotion recognition.

Facial Emotion Recognition Micro Expression Recognition +3

Multi-scale Cross-restoration Framework for Electrocardiogram Anomaly Detection

1 code implementation3 Aug 2023 Aofan Jiang, Chaoqin Huang, Qing Cao, Shuang Wu, Zi Zeng, Kang Chen, Ya zhang, Yanfeng Wang

To address this challenge, this paper introduces a novel multi-scale cross-restoration framework for ECG anomaly detection and localization that considers both local and global ECG characteristics.

Anomaly Detection

FengWu: Pushing the Skillful Global Medium-range Weather Forecast beyond 10 Days Lead

1 code implementation6 Apr 2023 Kang Chen, Tao Han, Junchao Gong, Lei Bai, Fenghua Ling, Jing-Jia Luo, Xi Chen, Leiming Ma, Tianning Zhang, Rui Su, Yuanzheng Ci, Bin Li, Xiaokang Yang, Wanli Ouyang

We present FengWu, an advanced data-driven global medium-range weather forecast system based on Artificial Intelligence (AI).

VTQA: Visual Text Question Answering via Entity Alignment and Cross-Media Reasoning

1 code implementation CVPR 2024 Kang Chen, Xiangqian Wu

The ideal form of Visual Question Answering requires understanding, grounding and reasoning in the joint space of vision and language and serves as a proxy for the AI task of scene understanding.

Answer Generation Entity Alignment +3

Learning Analytical Posterior Probability for Human Mesh Recovery

1 code implementation CVPR 2023 Qi Fang, Kang Chen, Yinghui Fan, Qing Shuai, Jiefeng Li, Weidong Zhang

Despite various probabilistic methods for modeling the uncertainty and ambiguity in human mesh recovery, their overall precision is limited because existing formulations for joint rotations are either not constrained to SO(3) or difficult to learn for neural networks.

Human Mesh Recovery

CLIPVG: Text-Guided Image Manipulation Using Differentiable Vector Graphics

1 code implementation5 Dec 2022 Yiren Song, Xuning Shao, Kang Chen, Weidong Zhang, Minzhe Li, Zhongliang Jing

Considerable progress has recently been made in leveraging CLIP (Contrastive Language-Image Pre-Training) models for text-guided image manipulation.

Image Manipulation Vector Graphics

TODE-Trans: Transparent Object Depth Estimation with Transformer

1 code implementation18 Sep 2022 Kang Chen, Shaochen Wang, Beihao Xia, Dongxu Li, Zhen Kan, Bin Li

We observe that the global characteristics of the transformer make it easier to extract contextual information to perform depth estimation of transparent areas.

Depth Estimation Object +2

LookinGood^π: Real-time Person-independent Neural Re-rendering for High-quality Human Performance Capture

no code implementations15 Dec 2021 Xiqi Yang, Kewei Yang, Kang Chen, Weidong Zhang, Weiwei Xu

The guidance of the rendered image is realized by blending features from two branches effectively in the training of the detail branch, which improves both the warping accuracy and the details' fidelity.

Neural Rendering

Occlum: Secure and Efficient Multitasking Inside a Single Enclave of Intel SGX

7 code implementations21 Jan 2020 Youren Shen, Hongliang Tian, Yu Chen, Kang Chen, Runji Wang, Yi Xu, Yubin Xia

SFI is a software instrumentation technique for sandboxing untrusted modules (called domains).

Operating Systems Hardware Architecture Cryptography and Security

Robust Invisible Hyperlinks in Physical Photographs Based on 3D Rendering Attacks

no code implementations3 Dec 2019 Jun Jia, Zhongpai Gao, Kang Chen, Menghan Hu, Guangtao Zhai, Guodong Guo, Xiaokang Yang

To train a robust decoder against the physical distortion from the real world, a distortion network based on 3D rendering is inserted between the encoder and the decoder to simulate the camera imaging process.

Decoder

Long Short-Term Attention

no code implementations30 Oct 2018 Guoqiang Zhong, Xin Lin, Kang Chen, Qingyang Li, Kai-Zhu Huang

Attention is an important cognition process of humans, which helps humans concentrate on critical information during their perception and learning.

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