Search Results for author: Zhichao Zhang

Found 20 papers, 5 papers with code

NTIRE 2025 challenge on Text to Image Generation Model Quality Assessment

no code implementations22 May 2025 Shuhao Han, Haotian Fan, Fangyuan Kong, Wenjie Liao, Chunle Guo, Chongyi Li, Radu Timofte, Liang Li, Tao Li, Junhui Cui, Yunqiu Wang, Yang Tai, Jingwei Sun, Jianhui Sun, Xinli Yue, Tianyi Wang, Huan Hou, Junda Lu, Xinyang Huang, Zitang Zhou, Zijian Zhang, Xuhui Zheng, Xuecheng Wu, Chong Peng, Xuezhi Cao, Trong-Hieu Nguyen-Mau, Minh-Hoang Le, Minh-Khoa Le-Phan, Duy-Nam Ly, Hai-Dang Nguyen, Minh-Triet Tran, Yukang Lin, Yan Hong, Chuanbiao Song, Siyuan Li, Jun Lan, Zhichao Zhang, Xinyue Li, Wei Sun, ZiCheng Zhang, Yunhao Li, Xiaohong Liu, Guangtao Zhai, Zitong Xu, Huiyu Duan, Jiarui Wang, Guangji Ma, Liu Yang, Lu Liu, Qiang Hu, Xiongkuo Min, Zichuan Wang, Zhenchen Tang, Bo Peng, Jing Dong, Fengbin Guan, Zihao Yu, Yiting Lu, Wei Luo, Xin Li, Minhao Lin, Haofeng Chen, Xuanxuan He, Kele Xu, Qisheng Xu, Zijian Gao, Tianjiao Wan, Bo-Cheng Qiu, Chih-Chung Hsu, Chia-Ming Lee, Yu-Fan Lin, Bo Yu, Zehao Wang, Da Mu, Mingxiu Chen, Junkang Fang, Huamei Sun, Wending Zhao, Zhiyu Wang, Wang Liu, Weikang Yu, Puhong Duan, Bin Sun, Xudong Kang, Shutao Li, Shuai He, Lingzhi Fu, Heng Cong, Rongyu Zhang, Jiarong He, Zhishan Qiao, Yongqing Huang, Zewen Chen, Zhe Pang, Juan Wang, Jian Guo, Zhizhuo Shao, Ziyu Feng, Bing Li, Weiming Hu, Hesong Li, Dehua Liu, Zeming Liu, Qingsong Xie, Ruichen Wang, Zhihao LI, Yuqi Liang, Jianqi Bi, Jun Luo, Junfeng Yang, Can Li, Jing Fu, Hongwei Xu, Mingrui Long, Lulin Tang

A total of 211 participants have registered in the structure track.

Image Restoration Text to Image Generation +1

Standard Heisenberg's uncertainty principles of Cohen's class time-frequency distribution with specific kernels

no code implementations13 Mar 2025 Zhichao Zhang

We then extend the standard Heisenberg's uncertainty principles of the Wigner distribution to those of the UMITRSK-CCTFD, giving birth to various types of attainable lower bounds on the uncertainty product in the UMITRSK-CCTFD domain.

Symplectic Wigner Distribution in the Linear Canonical Transform Domain: Theory and Application

no code implementations13 Mar 2025 Yangfan He, Zhichao Zhang

It incorporates the merits of the symplectic WD (SWD) and the WD in the LCT domain (WDL), achieving stronger capability in the linear frequency-modulated (LFM) signal frequency rate feature extraction while maintaining the same level of computational complexity.

Translation

Graph Chirp Signal and Graph Fractional Vertex-Frequency Energy Distribution

no code implementations10 Mar 2025 Manjun Cui, Zhichao Zhang

In recent years, many classical techniques in signal processing (SP) have been successfully extended to GSP.

Denoising

Frames and vertex-frequency representations in graph fractional Fourier domain

no code implementations28 Dec 2024 Linbo Shang, Zhichao Zhang

This leads to developing the multi-windowed graph fractional Fourier transform (MWGFRFT), enabling novel vertex-frequency analysis methods.

Anomaly Detection Computational Efficiency

Human-Activity AGV Quality Assessment: A Benchmark Dataset and an Objective Evaluation Metric

no code implementations25 Nov 2024 Zhichao Zhang, Wei Sun, Xinyue Li, Yunhao Li, Qihang Ge, Jun Jia, ZiCheng Zhang, Zhongpeng Ji, Fengyu Sun, Shangling Jui, Xiongkuo Min, Guangtao Zhai

To address this challenge, we conduct a pioneering study on human activity AGV quality assessment, focusing on visual quality evaluation and the identification of semantic distortions.

Video Generation Video Quality Assessment

ReverseNER: A Self-Generated Example-Driven Framework for Zero-Shot Named Entity Recognition with Large Language Models

no code implementations1 Nov 2024 Anbang Wang, Difei Mei, Zhichao Zhang, Xiuxiu Bai, Ran Yao, Zewen Fang, Min Hu, Zhirui Cao, Haitao Sun, Yifeng Guo, Hongyao Zhou, Yu Guo

During the entity expansion process, the LLM is guided to generate sentences by replicating the structures of a set of specific \textsl{feature sentences}, extracted from the task sentences by clustering.

named-entity-recognition Named Entity Recognition +3

Convolution Type of Metaplectic Cohen's Distribution Time-Frequency Analysis Theory, Method and Technology

no code implementations8 Aug 2024 Manjun Cui, Zhichao Zhang, Jie Han, Yunjie Chen, Chunzheng Cao

We blend Wiener filter principle and fractional domain filter mechanism of the metaplectic transform to design the least-squares adaptive filter method in the metaplectic Wigner distribution domain, giving birth to the least-squares adaptive filter-based CMCD whose kernel function can be adjusted with the input signal automatically to achieve the minimum mean-square error (MSE) denoising in Wigner distribution domain.

Denoising

Adaptive Cohen's Class Time-Frequency Distribution

no code implementations8 Aug 2024 Manjun Cui, Zhichao Zhang, Jie Han, Yunjie Chen, Chunzheng Cao

The fixed kernel function-based Cohen's class time-frequency distributions (CCTFDs) allow flexibility in denoising for some specific polluted signals.

Denoising

Benchmarking Multi-dimensional AIGC Video Quality Assessment: A Dataset and Unified Model

no code implementations31 Jul 2024 Zhichao Zhang, Wei Sun, Xinyue Li, Jun Jia, Xiongkuo Min, ZiCheng Zhang, Chunyi Li, Zijian Chen, Puyi Wang, Fengyu Sun, Shangling Jui, Guangtao Zhai

To bridge this gap, we propose the Unify Generated Video Quality assessment (UGVQ) model, designed to accurately evaluate the multi-dimensional quality of AIGC videos.

Benchmarking Large Language Model +4

Enhancing Blind Video Quality Assessment with Rich Quality-aware Features

1 code implementation14 May 2024 Wei Sun, HaoNing Wu, ZiCheng Zhang, Jun Jia, Zhichao Zhang, Linhan Cao, Qiubo Chen, Xiongkuo Min, Weisi Lin, Guangtao Zhai

Motivated by previous researches that leverage pre-trained features extracted from various computer vision models as the feature representation for BVQA, we further explore rich quality-aware features from pre-trained blind image quality assessment (BIQA) and BVQA models as auxiliary features to help the BVQA model to handle complex distortions and diverse content of social media videos.

Video Quality Assessment

Large Multi-modality Model Assisted AI-Generated Image Quality Assessment

1 code implementation27 Apr 2024 Puyi Wang, Wei Sun, ZiCheng Zhang, Jun Jia, Yanwei Jiang, Zhichao Zhang, Xiongkuo Min, Guangtao Zhai

Traditional deep neural network (DNN)-based image quality assessment (IQA) models leverage convolutional neural networks (CNN) or Transformer to learn the quality-aware feature representation, achieving commendable performance on natural scene images.

Image Quality Assessment Mixture-of-Experts

AIGIQA-20K: A Large Database for AI-Generated Image Quality Assessment

no code implementations4 Apr 2024 Chunyi Li, Tengchuan Kou, Yixuan Gao, Yuqin Cao, Wei Sun, ZiCheng Zhang, Yingjie Zhou, Zhichao Zhang, Weixia Zhang, HaoNing Wu, Xiaohong Liu, Xiongkuo Min, Guangtao Zhai

With the rapid advancements in AI-Generated Content (AIGC), AI-Generated Images (AIGIs) have been widely applied in entertainment, education, and social media.

Image Quality Assessment

Universal scaling relation and criticality in metabolism and growth of Escherichia coli

no code implementations9 Aug 2023 Shaohua Guan, Zhichao Zhang, Zihan Zhang, Hualin Shi

The metabolic network plays a crucial role in regulating bacterial metabolism and growth, but it is subject to inherent molecular stochasticity.

Relation

Subjective and Objective Quality Assessment for in-the-Wild Computer Graphics Images

1 code implementation14 Mar 2023 ZiCheng Zhang, Wei Sun, Yingjie Zhou, Jun Jia, Zhichao Zhang, Jing Liu, Xiongkuo Min, Guangtao Zhai

Computer graphics images (CGIs) are artificially generated by means of computer programs and are widely perceived under various scenarios, such as games, streaming media, etc.

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