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Guohui Zhang

4 accepted papers

2026

Group Critical-token Policy Optimization for Autoregressive Image Generation

ICLR 2026poster

Recent studies have extended Reinforcement Learning with Verifiable Rewards (RLVR) to autoregressive (AR) visual generation and achieved promising progress. However, existing methods typically apply uniform optimization across all image tokens, while the varying contributions of different image toke…

Cited by 0SourcecodeScholar
2026

MaskFocus: Focusing Policy Optimization on Critical Steps for Masked Image Generation

CVPR 2026

Reinforcement learning (RL) has demonstrated significant potential for post-training language models and autoregressive visual generative models, but adapting RL to masked generative models (MGMs) remains challenging. The core factor is that policy optimization requires the probability likelihood of

Cited by 0SourcecodeScholar
2026

Seeing Both Sides: Towards Bidirectional Semantic Alignment for Open-Vocabulary Camouflaged Object Segmentation

CVPR 2026

Open-Vocabulary Camouflaged Object Segmentation (OVCOS) aims to segment camouflaged objects from unseen categories under textual guidance precisely. However, existing methods often employ a unidirectional interaction strategy, where textual prompts guide the matching of visual features. Such a desig

Cited by 0SourcecodeScholar
2026

Thinking in Structures: Evaluating Spatial Intelligence through Reasoning on Constrained Manifolds

ICML 2026poster

Spatial intelligence is crucial for vision--language models (VLMs) in the physical world, yet many benchmarks evaluate largely unconstrained scenes where models can exploit 2D shortcuts. We introduce SSI-Bench, a VQA benchmark for spatial reasoning on constrained manifolds, built from complex real-w…

Cited by 0SourceScholar