SBIR Phase I: Innovation of Real-Time, Integrative Computer Vision System for Accurate, Full-Field Characterization of Complex Component Response

该小型企业创新研究第一阶段项目旨在为构建实时、多摄像头、基于视觉的测量系统奠定理论和实践基础，该系统能够提供准确的三维测量：(A)用于验证先进的建模和模拟工具；以及(B)用于远程、现场、无损地评估大小结构部件。提出的研究重点是构建基于视觉的测量系统的虚拟试验台(VTB)。VTB将包括数字成像、系统校准、用于物体测量的图像分析和用于特征识别的数据合成的过程。我们预计，VTB开发的结果将确定这些领域中每个领域的有前途的概念，这将是第二阶段计划的重点。拟议的测量系统技术的潜在应用包括：(A)民用基础设施的远程无损评估；(B)在准静态和冲击载荷下验证各种复杂系统(即全尺寸桥梁系统、油罐车、航空航天车辆)的先进计算模型。此外，该测量技术很容易与其他测量设备(即温度、压力、超声波、声学)集成，以开发多级别评估系统。

This Small Business Innovation Research Phase I project aims to develop the theoretical and practical bases for constructing a real-time, multiple camera, vision-based measurement system capable of providing accurate, three-dimensional measurements: (a) for verification of advanced modeling and simulation tools; and, (b) for remote, in-situ, non-destructive evaluation of both large and small structural components. The proposed research will focus on construction of a virtual test bed (VTB) for the vision-based measurement system. The VTB will include the processes of digital imaging, system calibration, image analysis for object measurement, and data synthesis for feature identification. We anticipate that results from the VTB development will identify promising concepts in each of these areas, which will be the focus of a Phase II program. Potential applications of the proposed measurement system technology include: (a) remote non-destructive evaluation (NDE) of civilian infrastructure; and, (b) validation of advanced computational models for a wide range of complex systems (i.e., full-scale bridge systems, tank cars, aerospace vehicles) under quasi-static and impact loading. In addition, the measurement technology is readily integrated with other measurement devices (i.e., temperature, pressure, ultrasound, acoustic) for development of a multi-level evaluation system.