Volumetrically resolved single-shot single-access-point imaging of translucent objects

这个项目使用光场相机技术开发一种新的诊断工具，可以测量半透明物体的瞬时三维（3D）结构，如燃烧系统中的照明喷雾或火焰前缘。这些信息将通过提高实际发动机设计的预测能力，使燃烧研究取得突破性发现。结合机械和电气工程学院的专业知识，使这个项目成为可能。研究工作被整合到一系列创新的学习经验中，对招聘和教育科学和工程工作人员做出了广泛的贡献。努力包括展示多样性和包容性战略以及创业活动。目前，测量燃烧过程的瞬时三维结构只有在非常高的实验努力和优化光学访问的条件下才能实现。全光或光场成像在这方面创造了新的机会。单个光学端口足以捕获可被处理以形成所观察场景的3D重建的图像。这种能力对于更好地理解3D结构如何影响从燃料和空气的混合到燃烧起始和火焰传播的任何事情至关重要。这反过来又对开发改进的燃烧过程以实现更清洁和更有效的能源生产至关重要。具有实体边界的场景的全光学图像的三维重建方法已经开发并可用。这里的努力将集中在半透明物体的图像形成方法上，比如被照亮的燃料喷雾或湍流火焰的火焰前缘结构。增强亮度的添加剂，如碱化合物，可以帮助增加信号强度。这里设想的3D成像概念在商业可行性和燃烧研究之外的应用方面具有很高的潜力，具有更广泛的科学和经济影响。这可以通过MConneX来推广，MConneX是密歇根大学的一个新的网络平台，可以与学生、教师和校友分享新的研究和教育成果。

1402707Sick, VolkerTitle: Volumetrically resolved single-shot single-access-point imaging of translucent objectsThis program uses light-field camera technology to develop a new diagnostic tool that measures instantaneous three-dimensional (3D) structures of translucent objects such as illuminated sprays or flame fronts in combustion systems. This information will enable breakthrough discoveries in combustion research by enhancing the development of predictive capability for practical engine design. Combining the expertise of faculty from mechanical and electrical engineering enables this project. The research work is integrated into a range of innovative learning experiences that contribute broadly to recruiting and educating the scientific and engineering work force. Efforts include demonstrated strategies for diversity and inclusion and entrepreneurial activities. At present, measurements of the instantaneous 3D structure of combustion processes are only possible with very high experimental effort and for conditions that are optimized for optical access. Plenoptic or light-field imaging creates new opportunities in this context. A single optical port is sufficient to capture images that can be processed to form a 3D reconstruction of the observed scene. This capability is critical for improved understanding of how 3D structure affects anything from mixing of fuel and air to combustion initiation and flame propagation. This in turn is critical to develop improved combustion processes for cleaner and more efficient energy production. 3D reconstruction methods for plenoptic images of scenes with solid boundaries at surfaces have been developed and are available. The efforts here will focus on image formation methods for translucent objects, such as illuminated fuel sprays or the flame front structure of a turbulent flame. Luminosity-enhancing additives such as alkali compounds can help to increase the signal intensity. 3D imaging concepts envisioned here have high potential for commercial viability and applications outside of combustion research with a broader scientific and economic impact. This can be promoted via MConneX, a new web-based platform at the University of Michigan to share new research and education efforts with students, faculty, and alums.