Market Study of Compressed Ultrafast Tomographic Imaging (CUTI)

条纹相机广泛用于瞬态事件的时间分辨二维（2D）成像。根据MarketsandMarkets的数据，截至2023年底，全球高速成像市场的价值约为4. 22亿美元，2017年至2023年的估计复合年增长率约为8%。然而，现有的方法是紧张的采集时间长，空间和时间分辨率之间的权衡，并减少了视野。它们还需要额外的组件、条纹相机的修改和主动照明。 在这里，我们开发了压缩超快断层成像（CUTI），它被动地记录2D瞬态事件与标准条纹相机。通过将CT的概念移植到时空域，条纹相机数据采集中的时间剪切和时空积分操作可以等价地表示为（x，y，t）数据立方体从某一角度的时空投影。使用压缩感知重建算法，可以在几个测量中准确地恢复2D瞬态事件。CUTI是用来图像的两个空间调制的超短紫外激光脉冲的顺序到达使用图像转换器条纹相机在0.5万亿帧每秒。CUTI还被应用于使用每秒5000帧的反射镜条纹相机对快速弹跳的球进行动画成像。作为一种新的工作模式，CUTI普遍适用于大多数条纹相机，预计将找到许多工业和科学应用。在这方面，NSERC I2 I市场研究将有助于确定最有前途的应用，分析潜在市场的前景，并促进从实验室到商业产品的技术转移。

Streak cameras are widely used in time-resolved two-dimensional (2D) imaging of transient events. According to MarketsandMarkets, the global high-speed imaging market has been valued at approximately US$422M by the end of 2023 with ~8% of an estimated compound annual growth rate from 2017 to 2023. However, existing approaches are strained by long acquisition time, the trade-off between spatial and temporal resolutions, and a reduced field of view. They also require additional components, modification of the streak cameras, and active illumination. Here, we develop compressed ultrafast tomographic imaging (CUTI), which passively records 2D transient events with a standard streak camera. By grafting the concept of computed tomography to the spatiotemporal domain, the operations of temporal shearing and spatiotemporal integration in a streak camera's data acquisition can be equivalently expressed as the spatiotemporal projection of an (x,y,t) datacube from a certain angle. Using a compressed-sensing reconstruction algorithm, the 2D transient event can be accurately recovered in a few measurements. CUTI is used to image the sequential arrival of two spatially modulated ultrashort ultraviolet laser pulses using an image-converter streak camera at 0.5 trillion frames-per-second. CUTI has also been applied to imaging an animation of fast-bouncing balls using a rotating-mirror streak camera at 5 thousand frames-per-second. Exhibiting as a new work mode universally adaptable to most streak cameras, CUTI is envisioned to find many industrial and scientific applications. In this regard, this NSERC I2I Market Study will assist in identifying the most promising applications, analyzing the prospect of the potential market, and facilitating technology transfer from the laboratory to a commercial product.