Jie Jiang (NGCC, ISPRS Com. President IV) and Prof. Jianya Gong (Wuhan University) have visited TU Delft on 3-7 July to measure ground control points for validation of the Chinese high resolution image ZY-3 (0.8m resolution). The project is under the umbrella of the Wuhan-TU Delft Joint Research Center on Spatial Information.