← Search

Xiaozhong Ji

14 accepted papers

2026

Group-wise Data Ordering: Enhancing Instruction Tuning of Large Language Models via Embedding Proximity

ICML 2026poster

Instruction tuning (IT) is a central mechanism for aligning large language models (LLMs) with user intent. In practice, randomly shuffling the training set is a simple yet surprisingly strong baseline. However, it overlooks latent structure, such as domain and reasoning depth, and thus interleaves h…

Cited by 0SourceScholar
2026

Human-MME: A Holistic Evaluation Benchmark for Human-Centric Multimodal Large Language Models

ICLR 2026poster

Multimodal Large Language Models (MLLMs) have demonstrated significant advances in visual understanding tasks. However, their capacity to comprehend human-centric scenes has rarely been explored, primarily due to the absence of comprehensive evaluation benchmarks that take into account both the hum…

Cited by 0SourcecodeScholar
2026

Med-CMR: A Fine-Grained Benchmark Integrating Visual Evidence and Clinical Logic for Medical Complex Multimodal Reasoning

CVPR 2026

MLLMs are beginning to appear in clinical workflows, but their ability to perform complex medical reasoning remains unclear. We present Med-CMR, a fine-grained Medical Complex Multimodal Reasoning benchmark. Med-CMR distinguishes from existing counterparts by three core features: 1) Systematic capab

Cited by 0SourcecodeScholar
2026

MedLesionVQA: A Multimodal Benchmark Emulating Clinical Visual Diagnosis for Body Surface Health

ICLR 2026poster

Body-surface health conditions, spanning diverse clinical departments, represent some of the most frequent diagnostic scenarios and a primary target for medical multimodal large language models (MLLMs). Yet existing medical benchmarks are either built from publicly available sources with limited ex…

Cited by 0SourceScholar
2025

GroundingFace: Fine-grained Face Understanding via Pixel Grounding Multimodal Large Language Model

CVPR 2025highlight

Multimodal Language Learning Models (MLLMs) have shown remarkable performance in image understanding, generation, and editing, with recent advancements achieving pixel-level grounding with reasoning. However, these models for common objects struggle with fine-grained face understanding. In this work…

Cited by 0SourcePDFScholar
2025

HunyuanPortrait: Implicit Condition Control for Enhanced Portrait Animation

CVPR 2025poster

We introduce HunyuanPortrait, a diffusion-based condition control method that employs implicit representations for highly controllable and lifelike portrait animation. Given a single portrait image as an appearance reference and video clips as driving templates, HunyuanPortrait can animate the chara…

2025

Sonic: Shifting Focus to Global Audio Perception in Portrait Animation

CVPR 2025poster

The study of talking face generation mainly explores the intricacies of synchronizing facial movements and crafting visually appealing, temporally-coherent animations. However, due to the limited exploration of global audio perception, current approaches predominantly employ auxiliary visual and sp…

Cited by 8SourcePDFScholar
2024

DiffuMatting: Synthesizing Arbitrary Objects with Matting-level Annotation

ECCV 2024poster

"Due to the difficulty and labor-consuming nature of getting highly accurate or matting annotations, there only exists a limited amount of highly accurate labels available to the public. To tackle this challenge, we propose a DiffuMatting which inherits the strong Everything generation ability of di…

2024

UniM-OV3D: Uni-Modality Open-Vocabulary 3D Scene Understanding with Fine-Grained Feature Representation

IJCAI 2024poster

3D open-vocabulary scene understanding aims to recognize arbitrary novel categories beyond the base label space. However, existing works not only fail to fully utilize all the available modal information in the 3D domain but also lack sufficient granularity in representing the features of each modal…

2022

Blind Face Restoration via Integrating Face Shape and Generative Priors

CVPR 2022poster

Blind face restoration, which aims to reconstruct high-quality images from low-quality inputs, can benefit many applications. Although existing generative-based methods achieve significant progress in producing high-quality images, they often fail to restore natural face shapes and high-fidelity fac…

Cited by 48PDFcodeScholar
2022

ColorFormer: Image Colorization via Color Memory Assisted Hybrid-Attention Transformer

ECCV 2022poster

"Automatic image colorization is a challenging task that attracts a lot of research interest. Previous methods employing deep neural networks have produced impressive results. However, these colorization images are still unsatisfactory and far from practical applications. The reason is that semantic…

Cited by 64SourcePDFScholar
2021

Frequency Consistent Adaptation for Real World Super Resolution

AAAI 2021technical

Recent deep-learning based Super-Resolution (SR) methods have achieved remarkable performance on images with known degradation. However, these methods always fail in real-world scene, since the Low-Resolution (LR) images after the ideal degradation (e.g., bicubic down-sampling) deviate from real sou…

Cited by 12SourcePDFScholar
2021

Spectrum-to-Kernel Translation for Accurate Blind Image Super-Resolution

NeurIPS 2021poster

Deep-learning based Super-Resolution (SR) methods have exhibited promising performance under non-blind setting where blur kernel is known; however, blur kernels of Low-Resolution (LR) images in different practical applications are usually unknown. It may lead to a significant performance drop when…

Cited by 27SourcePDFScholar
2020

AE TextSpotter: Learning Visual and Linguistic Representation for Ambiguous Text Spotting

ECCV 2020poster

Scene text spotting aims to detect and recognize the entire word or sentence with multiple characters in natural images. It is still challenging because ambiguity often occurs when the spacing between characters is large or the characters are evenly spread in multiple rows and columns, making many v…

Cited by 26SourcePDFScholar