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Renjing Pei

27 accepted papers

2026

ColorFLUX: A Structure-Color Decoupling Framework for Old Photo Colorization

CVPR 2026

Old photos preserve invaluable historical memories, making their restoration and colorization highly desirable. While existing restoration models can address some degradation issues like denoising and scratch removal, they often struggle with accurate colorization.This limitation arises from the uni

Cited by 0SourcecodeScholar
2026

Grounding-IQA: Grounding Multimodal Language Model for Image Quality Assessment

ICLR 2026poster

The development of multimodal large language models (MLLMs) enables the evaluation of image quality through natural language descriptions. This advancement allows for more detailed assessments. However, these MLLM-based IQA methods primarily rely on general contextual descriptions, sometimes limitin…

Cited by 0SourcecodeScholar
2026

HP-Edit: A Human-Preference Post-Training Framework for Image Editing

CVPR 2026

Common image editing tasks typically adopt powerful generative diffusion models as the leading paradigm for real-world content editing. Meanwhile, although reinforcement learning (RL) methods such as Diffusion-DPO and Flow-GRPO have further improved generation quality, efficiently applying Reinforce

Cited by 0SourceScholar
2026

Pixel to Gaussian: Ultra-Fast Continuous Super-Resolution with 2D Gaussian Modeling

ICLR 2026poster

Arbitrary-scale super-resolution (ASSR) aims to reconstruct high-resolution (HR) images from low-resolution (LR) inputs with arbitrary upsampling factors using a single model, addressing the limitations of traditional SR methods constrained to fixed-scale factors (\textit{e.g.}, $\times$ 2). Recent…

Cited by 0SourcecodeScholar
2026

RefSTAR: Blind Face Image Restoration with Reference Selection, Transfer, and Reconstruction

AAAI 2026technical

Introducing high-quality references can largely alleviate the uncertainty in blind face image restoration tasks, yet the equivocal utilization of reference priors makes it still a struggle to well preserve the human identity. We attribute the identity inconsistency to two deficiencies of existing re

Cited by 0SourcePDFScholar
2026

Test-Time Preference Optimization for Image Restoration

AAAI 2026technical

Image restoration (IR) models are typically trained to recover high-quality images using L1 or LPIPS loss. To handle diverse unknown degradations, zero-shot IR methods have also been introduced. However, existing pre-trained and zero-shot IR approaches often fail to align with human preferences, res

Cited by 0SourcePDFScholar
2026

UniRestorer: Universal Image Restoration via Adaptively Estimating Image Degradation at Proper Granularity

ICLR 2026poster

Recently, considerable progress has been made in all-in-one image restoration. Generally, existing methods can be degradation-agnostic or degradation-aware. However, the former are limited in leveraging degradation estimation-based priors, and the latter suffer from the inevitable error in degradati…

Cited by 0SourcecodeScholar
2025

ACE: Anti-Editing Concept Erasure in Text-to-Image Models

CVPR 2025poster

Recent advance in text-to-image diffusion models have significantly facilitated the generation of high-quality images, but also raising concerns about the illegal creation of harmful content, such as copyrighted images. Existing concept erasure methods achieve superior results in preventing the prod…

2025

CamEdit: Continuous Camera Parameter Control for Photorealistic Image Editing

NeurIPS 2025poster

Recent advances in diffusion models have substantially improved text-driven image editing. However, existing frameworks based on discrete textual tokens struggle to support continuous control over camera parameters and smooth transitions in visual effects. These limitations hinder their applications…

Cited by 0SourceScholar
2025

Directing Mamba to Complex Textures: An Efficient Texture-Aware State Space Model for Image Restoration

IJCAI 2025

Image restoration aims to recover details and enhance contrast in degraded images. With the growing demand for high-quality imaging (e.g., 4K and 8K), achieving a balance between restoration quality and computational efficiency has become increasingly critical. Existing methods, primarily based on C

Cited by 0SourcePDFScholar
2025

Dual Prompting Image Restoration with Diffusion Transformers

CVPR 2025poster

Recent state-of-the-art image restoration methods mostly adopt latent diffusion models with U-Net backbones, yet still facing challenges in achieving high-quality restoration due to their limited capabilities. Diffusion transformers (DiTs), like SD3, are emerging as a promising alternative because o…

Cited by 1SourcePDFScholar
2025

Fast Image Super-Resolution via Consistency Rectified Flow

ICCV 2025poster

Diffusion models (DMs) have demonstrated remarkable success in real-world image super-resolution (SR), yet their reliance on time-consuming multi-step sampling largely hinders their practical applications. While recent efforts have introduced few- or single-step solutions, existing methods either in…

Cited by 0SourcePDFScholar
2025

MC^2: Multi-concept Guidance for Customized Multi-concept Generation

CVPR 2025poster

Customized text-to-image generation, which synthesizes images based on user-specified concepts, has made significant progress in handling individual concepts. However, when extended to multiple concepts, existing methods often struggle with properly integrating different models and avoiding the unin…

2025

OmniZoom: A Universal Plug-and-Play Paradigm for Cross-Device Smooth Zoom Interpolation

NeurIPS 2025poster

Dual-camera smartphones suffer from geometric and photometric inconsistencies during zoom transitions, primarily due to disparities in intrinsic/extrinsic parameters and divergent image processing pipelines between the two cameras. Existing interpolation methods struggle to effectively address this…

Cited by 0SourceScholar
2025

PMQ-VE: Progressive Multi-Frame Quantization for Video Enhancement

NeurIPS 2025poster

Multi-frame video enhancement tasks aim to improve the spatial and temporal resolution and quality of video sequences by leveraging temporal information from multiple frames, which are widely used in streaming video processing, surveillance, and generation. Although numerous Transformer-based enhanc…

Cited by 0SourcecodeScholar
2025

PocketSR: The Super-Resolution Expert in Your Pocket Mobiles

NeurIPS 2025poster

Real-world image super-resolution (RealSR) aims to enhance the visual quality of in-the-wild images, such as those captured by mobile phones. While existing methods leveraging large generative models demonstrate impressive results, the high computational cost and latency make them impractical for ed…

Cited by 0SourceScholar
2025

QMambaBSR: Burst Image Super-Resolution with Query State Space Model

CVPR 2025poster

Burst super-resolution (BurstSR) aims to reconstruct high-resolution images by fusing subpixel details from multiple low-resolution burst frames. The primary challenge lies in effectively extracting useful information while mitigating the impact of high-frequency noise. Most existing methods rely on…

Cited by 5SourcePDFScholar
2025

Towards Realistic Data Generation for Real-World Super-Resolution

ICLR 2025poster

Existing image super-resolution (SR) techniques often fail to generalize effectively in complex real-world settings due to the significant divergence between training data and practical scenarios. To address this challenge, previous efforts have either manually simulated intricate physical-based deg…

Cited by 14SourcePDFScholar
2025

Unsupervised Diffusion-Based Degradation Modeling for Real-World Super-Resolution

AAAI 2025technical

Single image super-solution (SR) aims to restore a high-resolution (HR) image from a degraded low-resolution (LR) image. However, existing SR models still face a significant domain gap between synthetic and real-world datasets due to the mismatched degradation distributions, hindering SR models from…

2024

CoSeR: Bridging Image and Language for Cognitive Super-Resolution

CVPR 2024poster

Existing super-resolution (SR) models primarily focus on restoring local texture details often neglecting the global semantic information within the scene. This oversight can lead to the omission of crucial semantic details or the introduction of inaccurate textures during the recovery process. In o…

2024

LayerDiff: Exploring Text-guided Multi-layered Composable Image Synthesis via Layer-Collaborative Diffusion Model

ECCV 2024poster

"Despite the success of generating high-quality images given any text prompts by diffusion-based generative models, prior work directly generates the entire images, but cannot provide object-wise manipulation capability. To support wider real applications like professional graphic design and digital…

2024

MagicEraser: Erasing Any Objects via Semantics-Aware Control

ECCV 2024poster

"The traditional image inpainting task aims to restore corrupted regions by referencing surrounding background and foreground. However, the object erasure task, which is in increasing demand, aims to erase objects and generate harmonious background. Previous GAN-based inpainting methods struggle wit…

2024

RestoreAgent: Autonomous Image Restoration Agent via Multimodal Large Language Models

NeurIPS 2024poster

Natural images captured by mobile devices often suffer from multiple types of degradation, such as noise, blur, and low light. Traditional image restoration methods require manual selection of specific tasks, algorithms, and execution sequences, which is time-consuming and may yield suboptimal resul…

Cited by 6SourcePDFScholar
2024

UltraPixel: Advancing Ultra High-Resolution Image Synthesis to New Peaks

NeurIPS 2024poster

Ultra-high-resolution image generation poses great challenges, such as increased semantic planning complexity and detail synthesis difficulties, alongside substantial training resource demands. We present UltraPixel, a novel architecture utilizing cascade diffusion models to generate high-quality im…

Cited by 17SourcePDFScholar
2023

CLIPPING: Distilling CLIP-Based Models With a Student Base for Video-Language Retrieval

CVPR 2023poster

Pre-training a vison-language model and then fine-tuning it on downstream tasks have become a popular paradigm. However, pre-trained vison-language models with the Transformer architecture usually take long inference time. Knowledge distillation has been an efficient technique to transfer the capabi…

Cited by 47SourcePDFScholar
2023

HiVLP: Hierarchical Interactive Video-Language Pre-Training

ICCV 2023poster

Video-Language Pre-training (VLP) has become one of the most popular research topics in deep learning. However, compared to image-language pre-training, VLP has lagged far behind due to the lack of large amounts of video-text pairs. In this work, we train a VLP model with a hybrid of image-text and…

Cited by 6PDFScholar
2023

PIDRo: Parallel Isomeric Attention with Dynamic Routing for Text-Video Retrieval

ICCV 2023poster

Text-video retrieval is a fundamental task with high practical value in multi-modal research. Inspired by the great success of pre-trained image-text models with large-scale data, such as CLIP, many methods are proposed to transfer the strong representation learning capability of CLIP to text-video…

Cited by 19PDFScholar