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TLSポーズ回路におけるドリフト補正のための閉形式双四元数モデル
Rubens Antonio Leite Benevides1, Daniel Rodrigues Dos Santos2, Luis Augusto Koenig Veiga1
1Geomatics Department, Federal University of Paraná, Curitiba 81530-900, PR, Brazil.
Sensors (Basel, Switzerland)
|December 11, 2025
まとめ
本研究では、3D点群のドリフト補正のための新しいモデルを導入し、スキャンの一貫性を大幅に低減します。双四元数補間法は、複雑な計算なしに3D再構成を効率的に洗練させます。
科学分野:
- ジオマティクス工学; コンピュータビジョン; ロボティクス
背景:
- レーザースキャンによる3D点群データの取得は迅速であるが、登録エラーが発生しやすい。; 蓄積されたエラーは、3D再構成におけるドリフトとグローバルな不整合につながる。; 既存のドリフト補正モデルは、閉じた軌道に沿ってエラーを分散させる。
研究 の 目的:
- 3D点群のための新しいドリフト補正モデルを提示する。; レーザースキャンにおける登録エラーによって引き起こされるグローバルな不整合に対処する。; 閉じた軌道における3D再構成の精度と効率を向上させる。
主な方法:
- 双四元数の線形補間に基づくドリフト補正モデルの開発。; 閉じた軌道における回転と並進の同時洗練。; 効率化のための反復計算と行列分解の回避。
主要な成果:
- 8つの地上レーザースキャン(TLS)データセットでの実験的評価。; 3D再構成におけるロバストな平均誤差削減率26%。; 大きなドリフトを伴う回路で最大41%の誤差削減を観測。
結論:
- 提案された双四元数ベースのモデルは、ポーズ回路補正のための効率的かつ高速なソリューションを提供する。; この方法は、閉じた軌道におけるポーズ精度を大幅に向上させ、グローバルな不整合を低減する。; センサーに依存しない性質により、TLS以外のさまざまな3Dマッピングシステムへの適用が可能である。
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