目標特化型深度推定と適応モデル融合予測制御による水中視覚目標追跡
Underwater Visual Target Tracking with Target-Specific Depth Estimation and Adaptive Model-Fusion Predictive Control
AUVがステレオ画像から目標の深度を抽出し、カルマンフィルタで安定した3D相対状態を得て、ヨー制御と並進制御を分離した適応モデル融合MPCで目標を追跡する枠組みを提案した。
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著者: Yuheng Zhou, Haiyang Cheng, Yanqi Feng, Pangkit Fong, Mei Xuan Lee, Marcus Gee, Chongrong Fang, Jianping He
分類: cs.RO
原文アブストラクト
Vision-based underwater target tracking is challenged by unreliable depth measurements and unknown target motion. This paper proposes a stereo visual-servoing framework for an autonomous underwater vehicle (AUV). For perception, the framework derives a stable 3D relative state from stereo images through target-specific depth extraction and Kalman filtering. It constructs a target-depth mask from color, disparity, and temporal cues to select reliable target pixels, and then filters the resulting depth measurement and detected image center separately. For control, the framework decouples yaw regulation from translational control, avoiding computationally expensive coupled multi-DOF optimization and enabling real-time translational MPC. The translational controller employs adaptive model-fusion predictive control, combining constant-velocity and zero-velocity target models to accommodate different target-motion patterns. It updates the model weights using historical prediction errors and computes translational commands subject to actuation, following-distance, and field-of-view constraints. Through simulations and real-world experiments, we validate the effectiveness of the proposed framework and show it has better performance than existing frameworks.