WSSIC-Net:弱监督的语义实例完成3D点云场景的完成
概括
本研究介绍了一个弱监督的语义实例完成网络 (WSSIC-Net),用于从部分扫描中重建完整的3D对象形状,而无需昂贵的基准真实数据. 在WSSIC-Net实现性能与完全监督的方法相比较.
科学领域:
- 计算机视觉 计算机视觉
- 三维重建的3D重建
- 机器学习 机器学习
背景情况:
- 语义实例的完成需要完整的3D对象数据和来自部分2.5D扫描的标签.
- 现有的方法依赖于完全的监督,需要昂贵和耗时的基础真理注释.
- 这种依赖广泛的注释限制了3D场景理解的实际应用.
研究的目的:
- 开发一个弱监督的语义实例完成网络 (WSSIC-Net),用于从部分扫描中完成3D对象.
- 为了克服成本高昂的实地真相数据采集在现实世界的场景中的局限性.
- 为了实现强大的3D形状恢复而没有完整的对象注释.
主要方法:
- WSSIC-Net使用3D地面真实界限框,部分现实世界对象和未配对的合成3D点云.
- 一个3D探测器将部分点云编码为可用于监督盒预测和弱监督实例完成的功能.
- 一个生成对抗网络 (GAN) 使用语义一致的合成数据完成部分对象特征.
主要成果:
- 拟议的WSSIC-Net有效地执行弱监督实例完成,而不需要完整的3D对象地面真实性.
- 完全监督的3D检测和弱监督的实例完成的整合证明是互补的.
- 对ScanNet v2数据集的评估显示,WSSIC-Net的性能与最先进的完全监督方法相提并论.
结论:
- 弱监督学习为语义实例完成提供了可行且具有成本效益的替代方案.
- WSSIC-Net显示了在3D场景理解任务中显著降低注释成本的潜力.
- 这种方法为在现实应用中实现更实用,更可扩展的3D对象重建铺平了道路.
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