Li-Yu Chang received his Ph.D. degree in civil engineering, National Central University, Taiwan in 2013. Currently he is a senior engineer and the division director of Satellite Data Application division, Taiwan Space Agency (TASA). His research interest is in the areas of photogrammetry, digital image processing, and geographic information systems. In TASA, he is also in charged of the application development and business operation of Taiwan Data Cube under the support of TASA.