Ji Zhang is a graduate Computer Science and Systems student from University of Washington Tacoma. His major interest is computer vision, image processing and machine learning. He is currently working in the Center for Web & Data Science, UW Tacoma as a research assistant, and his research focus is fast image segmentation techniques, which will be applied in a 3D food volume estimation system. Currently he is working on building an interactive image segmentation program that will be embedded into a website. The segmentation result will sent back to the server to cancel out the food region when doing volume estimation in a 3D point cloud image.