Search Results for author: Chunyi Li

Found 16 papers, 11 papers with code

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

MISC: Ultra-low Bitrate Image Semantic Compression Driven by Large Multimodal Model

1 code implementation26 Feb 2024 Chunyi Li, Guo Lu, Donghui Feng, HaoNing Wu, ZiCheng Zhang, Xiaohong Liu, Guangtao Zhai, Weisi Lin, Wenjun Zhang

With the evolution of storage and communication protocols, ultra-low bitrate image compression has become a highly demanding topic.

Image Compression

Towards Open-ended Visual Quality Comparison

no code implementations26 Feb 2024 HaoNing Wu, Hanwei Zhu, ZiCheng Zhang, Erli Zhang, Chaofeng Chen, Liang Liao, Chunyi Li, Annan Wang, Wenxiu Sun, Qiong Yan, Xiaohong Liu, Guangtao Zhai, Shiqi Wang, Weisi Lin

Comparative settings (e. g. pairwise choice, listwise ranking) have been adopted by a wide range of subjective studies for image quality assessment (IQA), as it inherently standardizes the evaluation criteria across different observers and offer more clear-cut responses.

Image Quality Assessment

Q-Refine: A Perceptual Quality Refiner for AI-Generated Image

no code implementations2 Jan 2024 Chunyi Li, HaoNing Wu, ZiCheng Zhang, Hongkun Hao, Kaiwei Zhang, Lei Bai, Xiaohong Liu, Xiongkuo Min, Weisi Lin, Guangtao Zhai

With the rapid evolution of the Text-to-Image (T2I) model in recent years, their unsatisfactory generation result has become a challenge.

Image Quality Assessment

Q-Instruct: Improving Low-level Visual Abilities for Multi-modality Foundation Models

1 code implementation12 Nov 2023 HaoNing Wu, ZiCheng Zhang, Erli Zhang, Chaofeng Chen, Liang Liao, Annan Wang, Kaixin Xu, Chunyi Li, Jingwen Hou, Guangtao Zhai, Geng Xue, Wenxiu Sun, Qiong Yan, Weisi Lin

Multi-modality foundation models, as represented by GPT-4V, have brought a new paradigm for low-level visual perception and understanding tasks, that can respond to a broad range of natural human instructions in a model.

Q-Bench: A Benchmark for General-Purpose Foundation Models on Low-level Vision

1 code implementation25 Sep 2023 HaoNing Wu, ZiCheng Zhang, Erli Zhang, Chaofeng Chen, Liang Liao, Annan Wang, Chunyi Li, Wenxiu Sun, Qiong Yan, Guangtao Zhai, Weisi Lin

To address this gap, we present Q-Bench, a holistic benchmark crafted to systematically evaluate potential abilities of MLLMs on three realms: low-level visual perception, low-level visual description, and overall visual quality assessment.

Image Quality Assessment

Advancing Zero-Shot Digital Human Quality Assessment through Text-Prompted Evaluation

1 code implementation6 Jul 2023 ZiCheng Zhang, Wei Sun, Yingjie Zhou, HaoNing Wu, Chunyi Li, Xiongkuo Min, Xiaohong Liu, Guangtao Zhai, Weisi Lin

To address this gap, we propose SJTU-H3D, a subjective quality assessment database specifically designed for full-body digital humans.

GMS-3DQA: Projection-based Grid Mini-patch Sampling for 3D Model Quality Assessment

1 code implementation9 Jun 2023 ZiCheng Zhang, Wei Sun, Houning Wu, Yingjie Zhou, Chunyi Li, Xiongkuo Min, Guangtao Zhai, Weisi Lin

Model-based 3DQA methods extract features directly from the 3D models, which are characterized by their high degree of complexity.

Point Cloud Quality Assessment

AGIQA-3K: An Open Database for AI-Generated Image Quality Assessment

1 code implementation7 Jun 2023 Chunyi Li, ZiCheng Zhang, HaoNing Wu, Wei Sun, Xiongkuo Min, Xiaohong Liu, Guangtao Zhai, Weisi Lin

With the rapid advancements of the text-to-image generative model, AI-generated images (AGIs) have been widely applied to entertainment, education, social media, etc.

Image Quality Assessment

A Perceptual Quality Assessment Exploration for AIGC Images

1 code implementation22 Mar 2023 ZiCheng Zhang, Chunyi Li, Wei Sun, Xiaohong Liu, Xiongkuo Min, Guangtao Zhai

\underline{AI} \underline{G}enerated \underline{C}ontent (\textbf{AIGC}) has gained widespread attention with the increasing efficiency of deep learning in content creation.

Image Quality Assessment

A real-time blind quality-of-experience assessment metric for HTTP adaptive streaming

1 code implementation17 Mar 2023 Chunyi Li, May Lim, Abdelhak Bentaleb, Roger Zimmermann

In today's Internet, HTTP Adaptive Streaming (HAS) is the mainstream standard for video streaming, which switches the bitrate of the video content based on an Adaptive BitRate (ABR) algorithm.

A Survey on Dynamic Network Embedding

no code implementations15 Jun 2020 Yu Xie, Chunyi Li, Bin Yu, Chen Zhang, Zhouhua Tang

Real-world networks are composed of diverse interacting and evolving entities, while most of existing researches simply characterize them as particular static networks, without consideration of the evolution trend in dynamic networks.

Social and Information Networks Physics and Society

Contractibility of space of stability conditions on the projective plane via global dimension function

1 code implementation31 Jan 2020 Yu-Wei Fan, Chunyi Li, Wanmin Liu, Yu Qiu

We compute the global dimension function $\mathrm{gldim}$ on the principal component $\mathrm{Stab}^{\dag}(\mathbb{P}^2)$ of the space of Bridgeland stability conditions on $\mathbb{P}^2$.

Algebraic Geometry General Topology Representation Theory 2020: 14F08 (18G80, 32Q55)

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