CoMP: Continual Multimodal Pre-training for Vision Foundation Models
Authors: name: Yitong Chen; name: Lingchen Meng; name: Wujian Peng; name: Zuxuan Wu; name: Yu-Gang Jiang
Published: 2025-03-24 17:52:47

Abstract: Pre-trained Vision Foundation Models (VFMs) provide strong visual
representations for a wide range of applications. In this paper, we continually
pre-train prevailing VFMs in a multimodal manner such that they can
effortlessly process visual inputs of varying sizes and produce visual
representations that are more aligned with language representations, regardless
of their original pre-training process. To this end, we introduce CoMP, a
carefully designed multimodal pre-training pipeline. CoMP uses a Continual
Rotary Position Embedding to support native resolution continual pre-training,
and an Alignment Loss between visual and textual features through language
prototypes to align multimodal representations. By three-stage training, our
VFMs achieve remarkable improvements not only in multimodal understanding but
also in other downstream tasks such as classification and segmentation.
Remarkably, CoMP-SigLIP achieves scores of 66.7 on ChartQA and 75.9 on DocVQA
with a 0.5B LLM, while maintaining an 87.4% accuracy on ImageNet-1K and a 49.5
mIoU on ADE20K under frozen chunk evaluation.