I-Corps: Universal 3D Scanning Through Polarization-based Imaging

I-Corps项目更广泛的影响和商业潜力是基于偏振3D扫描仪的开发，该扫描仪能够扫描所有类型的表面。大多数现有的商业产品设计用于扫描哑光表面，使得镜面/闪亮表面难以扫描。本文提出的基于偏振的三维扫描技术可以扫描任意表面，从而解决了三维扫描的这一缺点。这项技术可以改进传统的3D扫描产品，因为它是一种低成本和易于使用的解决方案。此外，该技术有望大大拓宽3D扫描的应用领域，并使制造业、医疗保健、建筑、娱乐、数字媒体等对3D虚拟化有高需求的行业受益。这个I-Corps项目是基于基于偏振的3D扫描技术的发展。该技术使用了一种新颖的智能编码照明，即偏振场，用于3D扫描。核心研发内容包括：1)识别扫描表面的材料成分；2)根据检测到的表面材料，自动调整扫描硬件设置；以及3)实现高质量的3D重建，而不考虑主体的形状和材料。所提出的原型可以用廉价和容易获得的组件，如液晶显示器来构建。所提出的技术是低成本和用户友好的，因为它不需要手动切换扫描模式，以适应不同类型的表面。由此产生的基于偏振的3D扫描仪能够产生高质量的任意表面的3D模型，从纯粹的漫射到高度镜面，具有强大的性能。该奖项反映了美国国家科学基金会的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

The broader impact/commercial potential of this I-Corps project is based on the development of a polarization-based 3D scanner that is capable of scanning all types of surfaces. Most existing commercial products are designed to scan matte surfaces, leaving specular/shiny surfaces difficult to scan. The proposed polarization-based 3D scanning technology is able to solve this shortcoming of 3D scanning by allowing the scanning of arbitrary surfaces. This technology may improve conventional 3D scanning products as it results in a low-cost and easy-to-use solution. In addition, this technology is expected to significantly broaden the application field of 3D scanning and benefit the business sectors that have high demand in 3D virtualization, including manufacturing, healthcare, architecture, entertainment, and digital media. This I-Corps project is based on the development of polarization-based 3D scanning technology. This technology uses a novel smartly coded illumination, namely the polarization field, for 3D scanning. Core research and development includes: 1) identifying the material composition of scanning surfaces; 2) automatically adjusting scanning hardware settings, based on the detected surface material; and 3) achieving high-quality 3D reconstruction regardless of the shape and material of the subject. The proposed prototype may be constructed with inexpensive and easily accessible components, such as liquid crystal displays. The proposed technology is low-cost and user-friendly as it eliminates the need for manually switching the scanning mode to adapt to different types of surfaces. The resulted polarization-based 3D scanner is able to produce high quality 3D models of arbitrary surfaces, from purely diffuse to highly specular, with robust performance.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.