Company Filing History:
8 out of 30,045 
7 out of 2,077 
Years Active: 2008-2014
Title: Yiyong Sun: Innovator in Image Segmentation and 3D Reconstruction
Introduction
Yiyong Sun is a prominent inventor based in Lawrenceville, NJ (US). He has made significant contributions to the fields of image processing and medical imaging, holding a total of 14 patents. His innovative techniques have advanced the way images are segmented and reconstructed, particularly in medical applications.
Latest Patents
One of Yiyong Sun's latest patents is a multilevel image segmentation technique using graph cuts. This method involves generating a reduced resolution image from a full resolution image that is to be segmented. The reduced resolution image is segmented to identify the boundary between an object and the background. This boundary then helps to identify a portion of an increased resolution image, which is further segmented to refine the boundary. The process can be iterated for successively increasing image resolutions to meet specific application requirements. Users can provide initial input for object and background identification, or the system can automatically determine the background.
Another notable patent is related to coronary reconstruction from a rotational X-ray projection sequence. This method allows for three-dimensional reconstruction of branched objects from a sequence of images. It includes segmenting the branched object from each image, extracting centerlines, and performing symbolic reconstruction through stereo correspondence matching. The result is a three-dimensional tomographic reconstruction that compensates for motion between images.
Career Highlights
Yiyong Sun has worked with leading companies in the field, including Siemens Aktiengesellschaft and Siemens Medical Solutions USA, Inc. His experience in these organizations has contributed to his expertise in image processing technologies.
Collaborations
Throughout his career, Yiyong has collaborated with notable professionals such as Chenyang Xu and Frank Sauer. These collaborations have further enriched his work and innovations in the field.
Conclusion
Yiyong Sun's contributions to image segmentation and three-dimensional reconstruction have made a significant impact in medical imaging and related fields. His innovative patents reflect his dedication to advancing technology and improving imaging techniques.