VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video
  Understanding
In this paper, we propose VideoLLaMA3, a more advanced multimodal foundation
model for image and video understanding. The core design philosophy of
VideoLLaMA3 is vision-centric. The meaning of "vision-centric" is two-fold: the
vision-centric training paradigm and vision-centric framework design. The key
insight of our vision-centric training paradigm is that high-quality image-text
data is crucial for both image and video understanding. Instead of preparing
massive video-text datasets, we focus on constructing large-scale and
high-quality image-text datasets. VideoLLaMA3 has four training stages: 1)
vision-centric alignment stage, which warms up the vision encoder and
projector; 2) vision-language pretraining stage, which jointly tunes the vision
encoder, projector, and LLM with large-scale image-text data covering multiple
types (including scene images, documents, charts) as well as text-only data. 3)
multi-task fine-tuning stage, which incorporates image-text SFT data for
downstream tasks and video-text data to establish a foundation for video
understanding. 4) video-centric fine-tuning, which further improves the model's
capability in video understanding. As for the framework design, to better
capture fine-grained details in images, the pretrained vision encoder is
adapted to encode images of varying sizes into vision tokens with corresponding
numbers, rather than a fixed number of tokens. For video inputs, we reduce the
number of vision tokens according to their similarity so that the
representation of videos will be more precise and compact. Benefit from
vision-centric designs, VideoLLaMA3 achieves compelling performances in both
image and video understanding benchmarks.
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Chen
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Sicong Leng
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Yuming Jiang
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Hang Zhang
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Xin Li
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Peng Jin
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Lidong Bing
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Lidong Bing
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LidongBing
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Deli Zhao
VideoLLaMA 3: Frontier Multimodal Foundation Models for Image and Video
  Understanding
In this paper, we propose VideoLLaMA3, a more advanced multimodal foundation
model for image and video understanding. The core design philosophy of
VideoLLaMA3 is vision-centric. The meaning of "vision-centric" is two-fold: the
vision-centric training paradigm and vision-centric framework design. The key
insight of our vision-centric training paradigm is that high-quality image-text
data is crucial for both image and video understanding. Instead of preparing
massive video-text datasets, we focus on constructing large-scale and
high-quality image-text datasets. VideoLLaMA3 has four training stages: 1)
vision-centric alignment stage, which warms up the vision encoder and
projector; 2) vision-language pretraining stage, which jointly tunes the vision
encoder, projector, and LLM with large-scale image-text data covering multiple
types (including scene images, documents, charts) as well as text-only data. 3)
multi-task fine-tuning stage, which incorporates image-text SFT data for
downstream tasks and video-text data to establish a foundation for video
understanding. 4) video-centric fine-tuning, which further improves the model's
capability in video understanding. As for the framework design, to better
capture fine-grained details in images, the pretrained vision encoder is
adapted to encode images of varying sizes into vision tokens with corresponding
numbers, rather than a fixed number of tokens. For video inputs, we reduce the
number of vision tokens according to their similarity so that the
representation of videos will be more precise and compact. Benefit from
vision-centric designs, VideoLLaMA3 achieves compelling performances in both
image and video understanding benchmarks.
A vision-centric multimodal foundation model, VideoLLaMA3, improves image and video understanding through strategic training stages and adaptive vision token encoding.
vision-centric training paradigm vision-centric framework design vision-centric alignment stage vision-language pretraining stage multi-task fine-tuning stage video-centric fine-tuning vision tokens adaptive vision encoder