IntentionNav: A Benchmark for Intent-Driven Object Navigation from Implicit Human Instruction

Fuente: arXiv
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Main Authors: Qian, Lin, Li, Shijie, Lin, Sihao, Zhang, Xuan, Liu, Bangya, Li, Yanran, Yin, Hujun
Format: Preprint
Published: 2026
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author Qian, Lin
Li, Shijie
Lin, Sihao
Zhang, Xuan
Liu, Bangya
Li, Yanran
Yin, Hujun
author_facet Qian, Lin
Li, Shijie
Lin, Sihao
Zhang, Xuan
Liu, Bangya
Li, Yanran
Yin, Hujun
contents Existing object navigation benchmarks usually tell an embodied agent which object category to find, such as microwave or chair. Human-facing embodied AI is often asked something less direct: "I need something to warm this food" or "the room feels stuffy." The agent must infer the object that can satisfy the need, find a scene-grounded instance, and decide whether the goal has been reached. We study this setting as intent-driven object navigation and introduce IntentionNav, a diagnostic benchmark for active object search from implicit human instructions. Each episode provides a free-text intent, RGB-D observations, and pose, but withholds the target object name. IntentionNav contains 500 intents over 176 Isaac Sim scenes and 64 target categories. Each intent is rewritten in four controlled instruction styles and annotated with one of four intent modes, separating surface phrasing from semantic cue type under matched geometry. This paired design supports analysis of target inference, language robustness, neighborhood reachability, and terminal success rather than only aggregate success. We evaluated three VLMs using a fixed active-navigation agent. Models identify the intended target in 48.3 percent of episodes and enter its 2 m neighborhood in 68.7 percent, but terminate successfully in only 24.9 percent and achieve grounded 1 m success in 5.5 percent. Success is highest for event-script intents (28.7 percent) and lower for physical-state and affordance intents (19.2 percent and 18.5 percent), showing that indirect human intent remains a bottleneck for target selection, visual verification, and terminal localization in active embodied search.
format Preprint
id arxiv_https___arxiv_org_abs_2605_23187
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle IntentionNav: A Benchmark for Intent-Driven Object Navigation from Implicit Human Instruction
Qian, Lin
Li, Shijie
Lin, Sihao
Zhang, Xuan
Liu, Bangya
Li, Yanran
Yin, Hujun
Computer Vision and Pattern Recognition
Robotics
Existing object navigation benchmarks usually tell an embodied agent which object category to find, such as microwave or chair. Human-facing embodied AI is often asked something less direct: "I need something to warm this food" or "the room feels stuffy." The agent must infer the object that can satisfy the need, find a scene-grounded instance, and decide whether the goal has been reached. We study this setting as intent-driven object navigation and introduce IntentionNav, a diagnostic benchmark for active object search from implicit human instructions. Each episode provides a free-text intent, RGB-D observations, and pose, but withholds the target object name. IntentionNav contains 500 intents over 176 Isaac Sim scenes and 64 target categories. Each intent is rewritten in four controlled instruction styles and annotated with one of four intent modes, separating surface phrasing from semantic cue type under matched geometry. This paired design supports analysis of target inference, language robustness, neighborhood reachability, and terminal success rather than only aggregate success. We evaluated three VLMs using a fixed active-navigation agent. Models identify the intended target in 48.3 percent of episodes and enter its 2 m neighborhood in 68.7 percent, but terminate successfully in only 24.9 percent and achieve grounded 1 m success in 5.5 percent. Success is highest for event-script intents (28.7 percent) and lower for physical-state and affordance intents (19.2 percent and 18.5 percent), showing that indirect human intent remains a bottleneck for target selection, visual verification, and terminal localization in active embodied search.
title IntentionNav: A Benchmark for Intent-Driven Object Navigation from Implicit Human Instruction
topic Computer Vision and Pattern Recognition
Robotics
url https://arxiv.org/abs/2605.23187