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Su Wang

11 accepted papers

2026

DP-DEGAUSS: DYNAMIC PROBABILISTIC GAUSSIAN DECOMPOSITION FOR EGOCENTRIC 4D SCENE RECONSTRUCTION

ICASSP 2026poster

Egocentric video is crucial for next-generation 4D scene reconstruction, with applications in AR/VR and embodied AI. However, reconstructing dynamic first-person scenes is challenging due to complex ego-motion, occlusions, and hand-object interactions. Existing decomposition methods are ill-suited,…

Cited by 0SourcePDFScholar
2025

DreamSync: Aligning Text-to-Image Generation with Image Understanding Feedback

NAACL 2025long

Despite their widespread success, Text-to-Image models (T2I) still struggle to produce images that are both aesthetically pleasing and faithful to the user’s input text. We introduce DreamSync, a simple yet effective training algorithm that improves T2I models to be faithful to the text input. Dream…

Cited by 47SourcePDFScholar
2025

Revisiting text-to-image evaluation with Gecko: on metrics, prompts, and human rating

ICLR 2025spotlight

While text-to-image (T2I) generative models have become ubiquitous, they do not necessarily generate images that align with a given prompt. While many metrics and benchmarks have been proposed to evaluate T2I models and alignment metrics, the impact of the evaluation components (prompt sets, human…

Cited by 12SourcePDFScholar
2024

DOCCI: Descriptions of Connected and Contrasting Images

ECCV 2024poster

"Vision-language datasets are vital for both text-to-image (T2I) and image-to-text (I2T) research. However, current datasets lack descriptions with fine-grained detail that would allow for richer associations to be learned by models. To fill the gap, we introduce Descriptions of Connected and Contra…

Cited by 52SourcePDFScholar
2024

Davidsonian Scene Graph: Improving Reliability in Fine-grained Evaluation for Text-to-Image Generation

ICLR 2024poster

Evaluating text-to-image models is notoriously difficult. A strong recent approach for assessing text-image faithfulness is based on QG/A (question generation and answering), which uses pre-trained foundational models to automatically generate a set of questions and answers from the prompt, and outp…

Cited by 88SourcePDFScholar
2024

Evaluating Numerical Reasoning in Text-to-Image Models

NeurIPS 2024poster

Text-to-image generative models are capable of producing high-quality images that often faithfully depict concepts described using natural language. In this work, we comprehensively evaluate a range of text-to-image models on numerical reasoning tasks of varying difficulty, and show that even the mo…

2023

A New Path: Scaling Vision-and-Language Navigation With Synthetic Instructions and Imitation Learning

CVPR 2023poster

Recent studies in Vision-and-Language Navigation (VLN) train RL agents to execute natural-language navigation instructions in photorealistic environments, as a step towards robots that can follow human instructions. However, given the scarcity of human instruction data and limited diversity in the t…

2023

Imagen Editor and EditBench: Advancing and Evaluating Text-Guided Image Inpainting

CVPR 2023highlight

Text-guided image editing can have a transformative impact in supporting creative applications. A key challenge is to generate edits that are faithful to the input text prompt, while consistent with the input image. We present Imagen Editor, a cascaded diffusion model, built by fine-tuning Imagen on…

Cited by 185SourcePDFScholar
2023

Scaling Robot Learning with Semantically Imagined Experience

RSS 2023poster

Recent advances in robot learning have shown promise in enabling robots to perform a variety of manipulation tasks and generalize to novel scenarios. One of the key contributing factors to this progress is the scale of robot data used to train the models. To obtain large-scale datasets, prior appr…

Cited by 150SourcePDFScholar
2022

Less Is More: Generating Grounded Navigation Instructions From Landmarks

CVPR 2022poster

We study the automatic generation of navigation instructions from 360-degree images captured on indoor routes. Existing generators suffer from poor visual grounding, causing them to rely on language priors and hallucinate objects. Our MARKY-MT5 system addresses this by focusing on visual landmarks;…

Cited by 61PDFcodeScholar