What does really matter in image goal navigation?

• URL: http://arxiv.org/abs/2507.01667v1
• Date: Wed, 02 Jul 2025 12:50:26 GMT
• Title: What does really matter in image goal navigation?
• Authors: Gianluca Monaci, Philippe Weinzaepfel, Christian Wolf,
• Abstract summary: We study whether this task can be efficiently solved with end-to-end training of full agents with RL.<n>A positive answer would have impact beyond Embodied AI.
• Score: 21.23421707462711
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Image goal navigation requires two different skills: firstly, core navigation skills, including the detection of free space and obstacles, and taking decisions based on an internal representation; and secondly, computing directional information by comparing visual observations to the goal image. Current state-of-the-art methods either rely on dedicated image-matching, or pre-training of computer vision modules on relative pose estimation. In this paper, we study whether this task can be efficiently solved with end-to-end training of full agents with RL, as has been claimed by recent work. A positive answer would have impact beyond Embodied AI and allow training of relative pose estimation from reward for navigation alone. In a large study we investigate the effect of architectural choices like late fusion, channel stacking, space-to-depth projections and cross-attention, and their role in the emergence of relative pose estimators from navigation training. We show that the success of recent methods is influenced up to a certain extent by simulator settings, leading to shortcuts in simulation. However, we also show that these capabilities can be transferred to more realistic setting, up to some extend. We also find evidence for correlations between navigation performance and probed (emerging) relative pose estimation performance, an important sub skill.

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