High-speed 3D Optical Metrology for In-situ Applications

适用于现场应用的高速 3D 光学计量

• 批准号: 1300376
• 负责人: Song Zhang
• 金额: $ 20万
• 依托单位: Iowa State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-05-15 至 2015-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1300376&HistoricalAwards=false
• 关键词: speed; 3D; Optical; Metrology; situ

This grant provides funding to explore a novel automated optical method for precisely measuring three-dimensional (3D) structures at micrometer accuracy for shiny objects (e.g., metal parts) and simultaneously process 3D contents in real time for in-situ applications (e.g. sensing, monitoring, and inspection). The objective of the research is to test the hypothesis that better accuracy, higher speed, and more flexibility can be achieved with the binary defocusing technique for 3D optical metrology and for 3D information processing. The approach is 1) to theoretically and experimentally investigate binary defocusing technique for overcoming the limitations of existing 3D optical metrology methods; 2) to explore an automated 3D optical metrology framework for measuring shiny object surfaces, and 3) to further investigate novel methods to process 3D video contents in real time for in-situ applications. If successful, this project will result in two major research outcomes: 1) a novel instrumentation for automatically measuring objects difficult to be measured (e.g., shiny objects), and 2) a novel computational framework for 3D video data processing. This proposed technique will transform many fields by providing quantitative measure of physical objects including monitoring, sensing, and control for advanced manufacturing (e.g., additive manufacturing) and in-situ inspection; and will also introduce new paradigms to scientific areas including medicine, computer science, as well as other engineering disciplines. Knowledge gained from this research will also have many benefits to the society. For example, the high-speed 3D sensing techniques will drastically strengthen the competitiveness of the manufacturing industry by providing a novel tool for in-situ inspection and sensing. The 3D camera/sensor manufacturing is a multi-billion dollar industry, and thus commercializing 3D camera/sensor could have great economic benefits to the United States.

该赠款提供资金，以探索一种新型的自动化光学方法，以精确测量闪光物体（例如金属零件）（例如，金属零件）的三维（3D）结构，并同时在实时应用中实时处理3D内容（例如，传感，监测，监测和检查）。该研究的目的是检验以下假设：对于3D光学计量学和3D信息处理，二进制散热技术可以实现更好的准确性，更高的速度和更高的灵活性。该方法是1）理论上和实验研究二元散热技术，以克服现有的3D光学计量方法的局限性； 2）探索一个自动化的3D光学计量框架，用于测量闪亮的对象表面，3）进一步研究实时处理3D视频内容的新型方法，以实现现场应用程序。如果成功，该项目将产生两个主要的研究结果：1）一种新型的仪器，用于自动测量难以测量的对象（例如，闪亮的对象），以及2）3D视频数据处理的新型计算框架。这项提出的技术将通过提供对物理对象的定量度量，包括监视，感应和控制高级制造（例如添加剂制造）和原位检查，以改变许多领域；并将向包括医学，计算机科学以及其他工程学科在内的科学领域引入新的范式。从这项研究中获得的知识也将对社会带来许多好处。例如，高速3D传感技术将通过提供一种新颖的现场检查和感应工具来大大增强制造业的竞争力。 3D摄像头/传感器制造是一个数十亿美元的行业，因此将3D摄像头/传感器商业化可能对美国带来巨大的经济利益。