Shenzhen Huangfu

MCM-DPO: Multifaceted Cross-Modal Direct Preference Optimization for Alt-text Generation

2025 · arXiv (Cornell University)

The alt-text generation task produces concise, context-relevant descriptions of images, enabling blind and low-vision users to access online images. Despite the capabilities of large vision-language models, alt-text generation performance remains limited due to noisy user …