AU Lecture - Remote Sensing Data Processing for Earth Observation
time: 2017-05-15

    On May 11, the AU Lecture, Remote Sensing Data Processing for Earth Observation, was held in the room 214 of Building 3. Dr. Liao Wenzhi, from Ghent University, was invited to this issue as the major guest. The lecture was chaired by Prof. Du Qiliang.

    Before the lecture, Prof. Du gave a brief introduction to Dr. Liao, whose research interests are remote sensing image processing and pattern recognition. At the beginning of the lecture, Dr. Liao introduced the Ghent University in a humorous way. Then, Dr. Liao discussed something about remote sensing image processing. Firstly, he introduced remote image restoration, which is always the first step of image processing. He showed the difference between the image without and with restoration and proposed the application in urban planning, mineral detection, agriculture and so on. Secondly, Dr. Liao introduced dimension reduction for image feature extraction. He explained why he achieved dimension reduction by using principal component analysis (PCA) and analyzed the advantages of PCA in denoising and removing dithering. After that, the spatial information extraction was introduced. In order to construct the map more accurately, Dr. Liao realized the spatial information extraction by analyzing the image spectrum. Last but not least, Dr. Liao described how he realized the data fusion of multi-source sensors effectively. Finally, Dr. Liao shared his recent research and his future plan. As for the questions from audiences, he also answered patiently.

    What an interesting and interactive lecture!