Think Before You Segment: High-Quality Reasoning Segmentation with GPT Chain of Thoughts

Fuente: arXiv
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Main Authors: Kao, Shiu-hong, Tai, Yu-Wing, Tang, Chi-Keung
Format: Preprint
Published: 2025
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author Kao, Shiu-hong
Tai, Yu-Wing
Tang, Chi-Keung
author_facet Kao, Shiu-hong
Tai, Yu-Wing
Tang, Chi-Keung
contents Reasoning segmentation is a challenging vision-language task that aims to output the segmentation mask with respect to a complex, implicit, and even non-visual query text. Previous works incorporated multimodal Large Language Models (MLLMs) with segmentation models to approach the difficult problem. However, their segmentation quality often falls short in complex cases, particularly when dealing with out-of-domain objects with intricate structures, blurry boundaries, occlusions, or high similarity with surroundings. In this paper, we introduce ThinkFirst, a training-free reasoning segmentation framework that leverages GPT's chain of thought to address these challenging cases. Our approach allows GPT-4o or other powerful MLLMs to generate a detailed, chain-of-thought description of an image. This summarized description is then passed to a language-instructed segmentation assistant to aid the segmentation process. Our framework allows users to easily interact with the segmentation agent using multimodal inputs, such as easy text and image scribbles, for successive refinement or communication. We evaluate the performance of ThinkFirst on diverse objects. Extensive experiments show that, this zero-shot-CoT approach significantly improves the vanilla reasoning segmentation agent, both qualitatively and quantitatively, while being less sensitive or critical to user-supplied prompts after Thinking First.
format Preprint
id arxiv_https___arxiv_org_abs_2503_07503
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Think Before You Segment: High-Quality Reasoning Segmentation with GPT Chain of Thoughts
Kao, Shiu-hong
Tai, Yu-Wing
Tang, Chi-Keung
Computer Vision and Pattern Recognition
Reasoning segmentation is a challenging vision-language task that aims to output the segmentation mask with respect to a complex, implicit, and even non-visual query text. Previous works incorporated multimodal Large Language Models (MLLMs) with segmentation models to approach the difficult problem. However, their segmentation quality often falls short in complex cases, particularly when dealing with out-of-domain objects with intricate structures, blurry boundaries, occlusions, or high similarity with surroundings. In this paper, we introduce ThinkFirst, a training-free reasoning segmentation framework that leverages GPT's chain of thought to address these challenging cases. Our approach allows GPT-4o or other powerful MLLMs to generate a detailed, chain-of-thought description of an image. This summarized description is then passed to a language-instructed segmentation assistant to aid the segmentation process. Our framework allows users to easily interact with the segmentation agent using multimodal inputs, such as easy text and image scribbles, for successive refinement or communication. We evaluate the performance of ThinkFirst on diverse objects. Extensive experiments show that, this zero-shot-CoT approach significantly improves the vanilla reasoning segmentation agent, both qualitatively and quantitatively, while being less sensitive or critical to user-supplied prompts after Thinking First.
title Think Before You Segment: High-Quality Reasoning Segmentation with GPT Chain of Thoughts
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.07503