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Weiming Ren

10 accepted papers

2026

OneStory: Coherent Multi-Shot Video Generation with Adaptive Memory

CVPR 2026

Storytelling in real-world videos often unfolds through multiple shots--discontinuous yet semantically connected clips that together convey a coherent narrative. However, existing multi-shot video generation (MSV) methods struggle to effectively model long-range cross-shot context, as they rely on l

Cited by 0SourceScholar
2026

Scaling Zero-Shot Reference-to-Video Generation

CVPR 2026

Reference-to-video (R2V) generation aims to synthesize videos that align with a text prompt while preserving the subject identity from reference images. However, current R2V methods are hindered by the reliance on explicit reference image-video-text triplets, whose construction is highly expensive a

Cited by 0SourcecodeScholar
2026

TUNA: Taming Unified Visual Representations for Native Unified Multimodal Models

CVPR 2026

Unified multimodal models (UMMs) aim to jointly perform multimodal understanding and generation within a single framework. We present TUNA, a native UMM that builds a unified continuous visual representation by cascading a VAE encoder with a representation encoder. This unified representation space

Cited by 0SourceScholar
2026

VecGlypher: Unified Vector Glyph Generation with Language Models

CVPR 2026

Vector glyphs are the atomic units of digital typography, yet most learning-based pipelines still depend on carefully curated exemplar sheets and raster-to-vector postprocessing, which limits accessibility and editability. We introduce VecGlypher, a single multimodal language model that generates hi

Cited by 0SourcecodeScholar
2025

OmniEdit: Building Image Editing Generalist Models Through Specialist Supervision

ICLR 2025poster

Instruction-guided image editing methods have demonstrated significant potential by training diffusion models on automatically synthesized or manually annotated image editing pairs. However, these methods remain far from practical, real-life applications. We identify three primary challenges contrib…

Cited by 10SourcePDFScholar
2025

Pixel Reasoner: Incentivizing Pixel Space Reasoning via Curiosity-Driven Reinforcement Learning

NeurIPS 2025poster

Chain-of-thought reasoning has significantly improved the performance of Large Language Models (LLMs) across various domains. However, this reasoning process has been confined exclusively to textual space, limiting its effectiveness in visually intensive tasks. To address this limitation, we introdu…

Cited by 0SourceScholar
2025

VISTA: Enhancing Long-Duration and High-Resolution Video Understanding by Video Spatiotemporal Augmentation

CVPR 2025poster

Current large multimodal models (LMMs) face significant challenges in processing and comprehending long-duration or high-resolution videos, which is mainly due to the lack of high-quality datasets. To address this issue from a data-centric perspective, we propose VISTA, a simple yet effective video…

Cited by 4SourcePDFScholar
2025

Vamba: Understanding Hour-Long Videos with Hybrid Mamba-Transformers

ICCV 2025poster

State-of-the-art transformer-based large multimodal models (LMMs) struggle to handle hour-long video inputs due to the quadratic complexity of the causal self-attention operations, leading to high computational costs during training and inference. Existing token compression-based methods reduce the…

Cited by 0SourcePDFScholar
2024

MMLU-Pro: A More Robust and Challenging Multi-Task Language Understanding Benchmark

NeurIPS 2024spotlight

In the age of large-scale language models, benchmarks like the Massive Multitask Language Understanding (MMLU) have been pivotal in pushing the boundaries of what AI can achieve in language comprehension and reasoning across diverse domains. However, as models continue to improve, their performance…

Cited by 269SourcePDFScholar
2024

MMMU: A Massive Multi-discipline Multimodal Understanding and Reasoning Benchmark for Expert AGI

CVPR 2024poster

We introduce MMMU: a new benchmark designed to evaluate multimodal models on massive multi-discipline tasks demanding college-level subject knowledge and deliberate reasoning. MMMU includes 11.5K meticulously collected multimodal questions from college exams quizzes and textbooks covering six core d…