A lightweight color and geometry feature extraction and fusion module for end-to-end 6D pose estimation

Autor: Guoyu Zuo, Hong Liu, Jiangeng Li
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: International Journal of Advanced Robotic Systems, Vol 21 (2024)
Druh dokumentu: article
ISSN: 1729-8814
17298806
DOI: 10.1177/17298806241279609
Popis: Although advancements in red–green–blue-depth (RGB-D)-based six degree-of-freedom (6D) pose estimation methods, severe occlusion remains challenging. Addressing this issue, we propose a novel feature fusion module that can efficiently leverage the color and geometry information in RGB-D images. Unlike prior fusion methods, our method employs a two-stage fusion process. Initially, we extract color features from RGB images and integrate them into a point cloud. Subsequently, an anisotropic separable set abstraction network-like network is utilized to process the fused point cloud, extracting both local and global features, which are then combined to generate the final fusion features. Furthermore, we introduce a lightweight color feature extraction network to reduce model complexity. Extensive experiments conducted on the LineMOD, Occlusion LineMOD, and YCB-Video datasets conclusively demonstrate that our method significantly enhances prediction accuracy, reduces training time, and exhibits robustness to occlusion. Further experiments show that our model is significantly smaller than the latest popular 6D pose estimation models, which indicates that our model is easier to deploy on mobile platforms.
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