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Jinwei Chen

26 accepted papers

2026

Any-to-Bokeh: Arbitrary-Subject Video Refocusing with Video Diffusion Model

ICLR 2026poster

Diffusion models have recently emerged as powerful tools for camera simulation, enabling both geometric transformations and realistic optical effects. Among these, image-based bokeh rendering has shown promising results, but diffusion for video bokeh remains unexplored. Existing image-based methods…

Cited by 0SourcecodeScholar
2026

B-Spar: Bayesian Sparse-Reward Modeling for RL-based Image Editing

ICML 2026poster

Autonomous image-editing agents powered by multimodal large language models (MLLMs) improve transparency and controllability by translating high-level instructions into tool-mediated edit sequences, but training such agents with reinforcement learning often relies on dense proxy rewards (e.g., incre…

Cited by 0SourceScholar
2026

Bidirectional Noise Injection: Enhancing Diffusion Models via Coordinated Input-Output Perturbation

AAAI 2026technical

Diffusion models have demonstrated remarkable success in image generation, yet a persistent challenge remains: the bias between model predictions and the target distribution. In this paper, we propose a Bidirectional Noise Injection framework for enhancing diffusion models, implemented via Coordinat

Cited by 0SourcePDFScholar
2026

C^2FG: Control Classifier-Free Guidance via Score Discrepancy Analysis

CVPR 2026

Classifier-Free Guidance (CFG) is a cornerstone of modern conditional diffusion models, yet its reliance on the fixed or heuristic dynamic guidance weight is predominantly empirical and overlooks the inherent dynamics of the diffusion process. In this paper, we provide a rigorous theoretical analysi

Cited by 0SourceScholar
2026

I-DRUID: Layout to image generation via instance-disentangled representation and unpaired data

ICLR 2026poster

Layout-to-Image (L2I) generation, aiming at coherently generating multiple instances conditioned on the given layouts and instance captions, has raised substantial attention in the recent research. The primary challenges of L2I stem from 1) attribute leakage due to the entangled instance features wi…

Cited by 0SourceScholar
2026

LiveMoments: Reselected Key Photo Restoration in Live Photos via Reference-guided Diffusion

ICLR 2026poster

Live Photo captures both a high-quality key photo and a short video clip to preserve the precious dynamics around the captured moment. While users may choose alternative frames as the key photo to capture better expressions or timing, these frames often exhibit noticeable quality degradation, as th…

Cited by 0SourcecodeScholar
2026

Mono4DGS-HDR: High Dynamic Range 4D Gaussian Splatting from Alternating-exposure Monocular Videos

ICLR 2026poster

We introduce Mono4DGS-HDR, the first system for reconstructing renderable 4D high dynamic range (HDR) scenes from unposed monocular low dynamic range (LDR) videos captured with alternating exposures. To tackle such a challenging problem, we present a unified framework with two-stage optimization app…

Cited by 0SourcecodeScholar
2026

Restore Text First, Enhance Image Later: Two-Stage Scene Text Image Super-Resolution with Glyph Structure Guidance

CVPR 2026

Current image super-resolution methods show strong performance on natural images but distort text, creating a fundamental trade-off between image quality and textual readability. To address this, we introduce **TIGER** (**T**ext-**I**mage **G**uided sup**E**r-**R**esolution), a novel two-stage frame

Cited by 0SourceScholar
2026

Towards Photorealistic and Efficient Bokeh Rendering via Diffusion Framework

CVPR 2026

Existing mobile devices are constrained by compact optical designs, such as small apertures, which make it difficult to produce natural, optically realistic bokeh effects. Although recent learning-based methods have shown promising results, they still struggle with photos captured under high digital

Cited by 0SourcecodeScholar
2025

Advancing Comprehensive Aesthetic Insight with Multi-Scale Text-Guided Self-Supervised Learning

AAAI 2025technical

Image Aesthetic Assessment (IAA) is a vital and intricate task that entails analyzing and assessing an image's aesthetic values, and identifying its highlights and areas for improvement. Traditional methods of IAA often concentrate on a single aesthetic task and suffer from inadequate labeled datase…

Cited by 0SourcePDFScholar
2025

BokehDiff: Neural Lens Blur with One-Step Diffusion

ICCV 2025poster

We introduce Bokehdiff, a novel lens blur rendering method that achieves physically accurate and visually appealing outcomes, with the help of generative diffusion prior. Previous methods are bounded by the accuracy of depth estimation, generating artifacts in depth discontinuities. Our method emplo…

2025

Boosting Vision State Space Model with Fractal Scanning

AAAI 2025technical

Recently, foundational models have significantly advanced in different tasks, accompanied by Transformer as the general backbone. However, Transformer's quadratic complexity poses challenges for handling longer sequences and higher resolution images, which may limit foundational models further devel…

Cited by 0SourcePDFScholar
2025

High-Precision Dichotomous Image Segmentation via Probing Diffusion Capacity

ICLR 2025poster

In the realm of high-resolution (HR), fine-grained image segmentation, the primary challenge is balancing broad contextual awareness with the precision required for detailed object delineation, capturing intricate details and the finest edges of objects. Diffusion models, trained on vast datasets co…

2025

Learning Adaptive Lighting via Channel-Aware Guidance

ICML 2025poster

Learning lighting adaptation is a crucial step in achieving good visual perception and supporting downstream vision tasks. Current research often addresses individual light-related challenges, such as high dynamic range imaging and exposure correction, in isolation. However, we identify shared funda…

2025

Multi-Task Dense Predictions via Unleashing the Power of Diffusion

ICLR 2025poster

Diffusion models have exhibited extraordinary performance in dense prediction tasks. However, there are few works exploring the diffusion pipeline for multi-task dense predictions. In this paper, we unlock the potential of diffusion models in solving multi-task dense predictions and propose a novel…

2025

Photography Perspective Composition: Towards Aesthetic Perspective Recommendation

NeurIPS 2025poster

Traditional photography composition approaches are dominated by 2D cropping-based methods. However, these methods fall short when scenes contain poorly arranged subjects. Professional photographers often employ perspective adjustment as a form of 3D recomposition, modifying the projected 2D relation…

Cited by 0SourceScholar
2025

RAP-SR: RestorAtion Prior Enhancement in Diffusion Models for Realistic Image Super-Resolution

AAAI 2025technical

Benefiting from their powerful generative capabilities, pretrained diffusion models have garnered significant attention for real-world image super-resolution (Real-SR). Existing diffusion-based SR approaches typically utilize semantic information from degraded images and restoration prompts to activ…

2025

SDMatte: Grafting Diffusion Models for Interactive Matting

ICCV 2025poster

Recent interactive matting methods have demonstrated satisfactory performance in capturing the primary regions of objects, but they fall short in extracting fine-grained details in edge regions. Diffusion models trained on billions of image-text pairs, demonstrate exceptional capability in modeling…

2025

SE-GUI: Enhancing Visual Grounding for GUI Agents via Self-Evolutionary Reinforcement Learning

NeurIPS 2025poster

Graphical User Interface (GUI) agents have made substantial strides in understanding and executing user instructions across diverse platforms. Yet, grounding these instructions to precise interface elements remains challenging—especially in complex, high-resolution, professional environments. Tradit…

Cited by 0SourceScholar
2025

TSD-SR: One-Step Diffusion with Target Score Distillation for Real-World Image Super-Resolution

CVPR 2025poster

Pre-trained text-to-image diffusion models are increasingly applied to real-world image super-resolution (Real-ISR) task. Given the iterative refinement nature of diffusion models, most existing approaches are computationally expensive. While methods such as SinSR and OSEDiff have emerged to condens…

2024

Beta-Tuned Timestep Diffusion Model

ECCV 2024poster

"Diffusion models have received a lot of attention in the field of generation due to their ability to produce high-quality samples. However, several recent studies indicate that treating all distributions equally in diffusion model training is sub-optimal. In this paper, we conduct an in-depth theor…

Cited by 12SourcePDFScholar
2024

Improving Adversarial Energy-Based Model via Diffusion Process

ICML 2024poster

Generative models have shown strong generation ability while efficient likelihood estimation is less explored. Energy-based models (EBMs) define a flexible energy function to parameterize unnormalized densities efficiently but are notorious for being difficult to train. Adversarial EBMs introduce a…

Cited by 5SourcePDFScholar
2024

Mono-ViFI: A Unified Learning Framework for Self-supervised Single- and Multi-frame Monocular Depth Estimation

ECCV 2024poster

"Self-supervised monocular depth estimation has gathered notable interest since it can liberate training from dependency on depth annotations. In monocular video training case, recent methods only conduct view synthesis between existing camera views, leading to insufficient guidance. To tackle this,…

2024

Multi-Task Dense Prediction via Mixture of Low-Rank Experts

CVPR 2024poster

Previous multi-task dense prediction methods based on the Mixture of Experts (MoE) have received great performance but they neglect the importance of explicitly modeling the global relations among all tasks. In this paper we present a novel decoder-focused method for multi-task dense prediction call…

2024

Revisiting Single Image Reflection Removal In the Wild

CVPR 2024poster

This research focuses on the issue of single-image reflection removal (SIRR) in real-world conditions examining it from two angles: the collection pipeline of real reflection pairs and the perception of real reflection locations. We devise an advanced reflection collection pipeline that is highly ad…

2024

SAFNet: Selective Alignment Fusion Network for Efficient HDR Imaging

ECCV 2024poster

"Multi-exposure High Dynamic Range (HDR) imaging is a challenging task when facing truncated texture and complex motion. Existing deep learning-based methods have achieved great success by either following the alignment and fusion pipeline or utilizing attention mechanism. However, the large computa…