Yong Long

Title: Innovations by Yong Long in Projection Methods

Introduction

Yong Long is an accomplished inventor based in Ann Arbor, MI (US). He has made significant contributions to the field of projection methods, particularly in the development of three-dimensional forward and back projection techniques. His innovative work has implications for various applications in imaging technologies.

Latest Patents

Yong Long holds a patent for "Three-dimensional forward and back projection methods." This patent describes methods for forward and back-projection, referred to as separable footprint (SF) projectors, exemplified by the SF-TR and SF-TT projectors. These methods approximate the voxel footprint functions as 2D separable functions. The separability of these footprint functions simplifies the calculation of their integrals over a detector cell, allowing for efficient implementation. The SF-TR projector utilizes trapezoid functions in the transaxial direction and rectangular functions in the axial direction. In contrast, the SF-TT projector employs trapezoid functions in both directions. Simulations and experiments have demonstrated that both SF projector methods outperform conventional distance-driven (DD) projectors. Notably, the SF-TT projector exhibits greater accuracy than the SF-TR projector for rays associated with large cone angles. Additionally, the SF-TR projector maintains a computation speed comparable to the DD projector, while the SF-TT projector operates at about twice the speed.

Career Highlights

Yong Long is affiliated with the University of Michigan, where he continues to advance his research and development in imaging technologies. His work has garnered attention for its innovative approach and practical applications in the field.

Collaborations

Yong Long has collaborated with notable colleagues, including Jeffrey Allen Fessler and James Balter. Their combined expertise has contributed to the success of their projects and advancements in imaging methodologies.

Conclusion

Yong Long's contributions to three-dimensional projection methods highlight his innovative spirit and dedication to advancing imaging technologies. His patent and collaborative efforts reflect a commitment to improving accuracy and efficiency in this critical field.