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Approaches Used by State-of-the-Art Vision-Language Models for Handling High-Resolution Images
Artificial Intelligence   Data Science   Latest   Machine Learning

Approaches Used by State-of-the-Art Vision-Language Models for Handling High-Resolution Images

Last Updated on September 17, 2024 by Editorial Team

Author(s): Duci Nguyen

Originally published on Towards AI.

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Have you ever failed to ask a Vision-Language Model (VLM) to search for specific objects or thoroughly explain details about a high-resolution image?

Image by V* Visual Search paper

When I studied about multimodal large language models (MLLMs), I face a significant challenge: these models depend heavily on pre-trained vision encoders like the CLIP image encoder, which are trained on smaller-scale images β€” typically 224×224 or 336×336 pixels. This training approach poses a problem when deploying these models, as images are often downscaled to similar resolutions, resulting in the loss of crucial details in higher-resolution images.

Therefore in this article, I will introduce the four most recent methods and provide a middle-level explanation of each method to ensure clarity and accessibility for all readers.

Image by FlexAttention paper

(a) Using Low-Resolution Vision-Language Models (VLMs): I find that these models downsample high-resolution images to meet vision encoder standards. This often results in significant detail loss, which hampers the model’s ability to accurately address queries about the image.

(b) Employing High-Resolution VLMs: While these models handle high-resolution images directly, they consume a large number of image tokens, leading to excessive computational demands and inefficiency.

4.1 FlexAttention for Efficient… Read the full blog for free on Medium.

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