CoLLaVO: Crayon Large Language and Vision mOdel
Authors: name: Byung-Kwan Lee; name: Beomchan Park; name: Chae Won Kim; name: Yong Man Ro
Published: 2024-02-17 11:03:02

Abstract: The remarkable success of Large Language Models (LLMs) and instruction tuning
drives the evolution of Vision Language Models (VLMs) towards a versatile
general-purpose model. Yet, it remains unexplored whether current VLMs
genuinely possess quality object-level image understanding capabilities
determined from 'what objects are in the image?' or 'which object corresponds
to a specified bounding box?'. Our findings reveal that the image understanding
capabilities of current VLMs are strongly correlated with their zero-shot
performance on Vision Language (VL) tasks. This suggests that prioritizing
basic image understanding is crucial for VLMs to excel at VL tasks. To enhance
object-level image understanding, we propose Crayon Large Language and Vision
mOdel (CoLLaVO), which incorporates instruction tuning with crayon prompt as a
new visual prompt tuning scheme based on panoptic color maps. Furthermore, we
present a learning strategy of Dual QLoRA to preserve object-level image
understanding without forgetting it during visual instruction tuning, thereby
achieving a significant leap in zero-shot numerous VL benchmarks.