Design and Algorithm Optimization of a Vision-Ultrasound Collaborative Embedded System for Precision Machining. SciELO Preprints, 2026. DOI: 10.1590/SciELOPreprints.15559. Disponível em: https://preprints.scielo.org/index.php/scielo/preprint/view/15559. Acesso em: 26 maio. 2026.