General

LIU, Wai Chung (Morgan)

​Aerospace Information Research Institute, Chinese Academy of Sciences

liaowc@aircas.ac.cn

Research Areas

Planetary Optical Remote Sensing

Planetary Mapping

Image Processing


Education

2020: PhD, Hong Kong Polytechnic University

2013: BSc in Geomatics, Hong Kong Polytechnic University

2011: HD in Geomatics, Hong Kong Polytechnic University


Experience

2023  -           : Associate Researcher, AIRCAS

2020  -  2023: Postdoc, HKPolyU (PolyU Postdoc Matching Fund Scheme: 2021-2023)

2020  -  2020: Research Associate, HKPolyU


Publications

Total peer-reviewed publications: 1 book chapter, 14 journal articles, 7 conference papers.

Peer-reviewed publications:

Book chapters:

[1]. Wu, B., Hu, H and Liu, W. C., 2018. Photogrammetric processing of LROC NAC images for precision lunar topographic mapping. In B. Wu, K. Di, J. Oberst, and I. Karachevtseva (Ed.): Planetary Remote Sensing and Mapping, Taylor & Francis Group/CRC Press, London, Chapter 10.

Journal articles (peer-reviewed):

[1]. Liu, W. C., and Wu, B., 2023. Atmosphere-Aware Photoclinometry for Pixel-Wise 3D Topographic Mapping of Mars. ISPRS Journal of Photogrammetry and Remote Sensing, accepted. 

Impact factor: 11.774.

[2]. Liu, W. C., Wu, B., Li, Z., Dong, J., Rao, W., 2022. Pre and Post-Landing Atmospheric Optical Depths at the Zhurong Landing Site on Mars Retrieved Using a Single-Image-Based Approach. Icarus, 387, doi: 10.1016/j.icarus.2022.115223.

Impact factor: 3.657.

[3]. Li, Z., Wu, B., Liu, W. C., Chen, L., Li, H., Dong, J., Rao, W., Wang, D., Meng, Q., Dong, J., 2022. Photogrammetric Processing of Tianwen-1 HiRIC Imagery for Precision Topographic Mapping on Mars. IEEE Transactions on Geoscience and Remote Sensing, doi: 10.1109/TGRS.2022.3194081.

Impact factor: 8.125.

[4]. Wu, B., Dong, J., Wang, Y., Rao, W., Sun, Z., Li, Z., Tan, Z., Chen, Z., Wang, C., Liu, W. C., Chen, L., Zhu, J., Li, H., 2022. Landing site selection and characterization of Tianwen-1 (Zhurong rover) on Mars. Journal of Geophysical Research: Planets, 127: e2021JE007137, doi: 10.1029/2021JE007137.

Impact factor: 4.43.

[5]. Liu, W. C., and Wu, B., 2021. Influence of Solar Incidence Angle on Single-Image Photoclinometry for Precision Lunar Topographic Mapping. ISPRS Journal of Photogrammetry and Remote Sensing, 182: 208-227, doi: 10.1016/j.isprsjprs.2021.10.011.

Impact factor: 11.774.

[6]. Li, Z., Wu, B., Liu, W. C., Chen, Z., 2021. Integrated Photogrammetric and Photoclinometric Processing of Multiple HRSC Images for Pixelwise 3-D Mapping on Mars. IEEE Transactions on Geoscience and Remote Sensing, doi: 10.1109/TGRS.2021.3106737.

Impact factor: 8.125.

[7]. Wu, B., Dong, J., Wang, Y., Li, Z., Chen, Z., Liu, W. C., Zhu, J., Chen, L., Li, Y., Rao, W., 2021. Characterization of the Candidate Landing Region for Tianwen-1 - China's First Mission to Mars. Earth and Space Science, 8: e2021EA001670, doi: 10.1029/2021EA001670.

Impact factor: 3.68.

[8]. Chen, Z., Wu, B., and Liu, W. C., 2021. Mars3DNet: CNN-Based High-Resolution 3D Reconstruction of the Martian Surface from Single Images. Remote Sensing, 13 (5): 839, doi: 10.3390/rs13050839.

Impact factor: 5.349.

[9]. Liu, W. C. and Wu, B., 2020. An Integrated Photogrammetric and Photoclinometric Approach for Illumination-Invariant Pixel-Resolution 3D Mapping of the Lunar Surface. ISPRS Journal of Photogrammetry and Remote Sensing, 159: 153-168, doi: 10.1016/j.isprsjprs.2019.11.017. (ISPRS Journal 2020 featured articles)

Impact factor: 11.774.

[10]. Wu, B., Li, Y., Liu, W. C., Wang, Y., Li, F., Zhao, Y., Zhang, H., 2020. Centimeter-Resolution Topographic Modeling and Fine-Scale Analysis of Craters and Rocks at the Chang’E-4 Landing Site. Earth and Planetary Science Letters, 553, 116666, doi: 10.1016/j.epsl.2020.116666.

Impact factor: 5.785.

[11]. Wu, B., Li, F., Hu, H., Zhao, Y., Wang, Y., Xiao, P., Li, Y., Liu, W. C., Chen, L., Ge, X., Yang, M., Xu, Y., Ye, Q., Wu, X., Zhang, H., 2020. Topographic and geomorphological analysis of the Chang’E-4 landing site on the far side of the Moon. Photogrammetric Engineering & Remote Sensing, 86: 247-258, doi: 10.14358/PERS.86.4.247. (2021 Esri Award for Best Scientific Paper in Geographic Information Systems)

Impact factor: 1.154.

[12]. Liu, W. C., Wu, B., and Wöhler, C., 2018. Effects of Illumination Differences on Photometric Stereo Shape-and-Albedo-from-Shading for Precision Lunar Surface Reconstruction. ISPRS Journal of Photogrammetry and Remote Sensing, 136: 58-72, doi: 10.1016/j.isprsjprs.2017.12.010.

Impact factor: 11.774.

[13]. Wu, B., Liu, W. C., Grumpe, A., and Wöhler, C., 2018. Construction of Pixel-Level Resolution DEMs from Monocular Images by Shape and Albedo from Shading Constrained with Low-Resolution DEM. ISPRS Journal of Photogrammetry and Remote Sensing, 140: 3-19, doi: 10.1016/j.isprsjprs.2017.03.007.

Impact factor: 11.774.

[14]. Wu, B. and Liu, W. C., 2017. Calibration of Boresight Offset of LROC NAC Imagery for Precision Lunar Topographic Mapping. ISPRS Journal of Photogrammetry and Remote Sensing, 128: 372-387, doi: 10.1016/j.isprsjprs.2017.04.012.

Impact factor: 11.774.

 

Conference Papers and Presentations:

[1]. Chen, Z., Wu, B., and Liu, W. C., 2020. Deep learning for 3D reconstruction of the Martian surface using monocular images: A first glance. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLIII-B3-2020: 1111-1116.

[2]. Wu, B., Liu, W. C., 2019. Photoclinometry and Photogrammetry Integrated Approach for Pixel-Resolution 3D Mapping and Applications in China's Lunar Landing Missions. 2019 IEEE International Geoscience and Remote Sensing Symposium, July 28-August 2, 2019, Yokohama, Japan: 5011-5012.

[3]. Liu, W. C. and Wu, B., 2018. An Integrated Photogrammetric and Photoclinometric Approach for Pixel-Resolution 3D Modelling of Lunar Surface. International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, XLII-3: 1117-1121.

[4]. Wohlfarth, K. S., Liu, W. C., Wu, B., Grumpe, A., Wöhler, C., 2018. High Resolution Digital Terrain Models of the Martian Surface: Compensation of the Atmosphere on CTX imagery. 49th Lunar and Planetary Science Conference, March 19-23, 2018, The Woodlands, Texas, USA.

[5]. Liu, W. C., Wu, B., 2017. Photometric Stereo Shape-And-Albedo-From-Shading for Pixel-Level Resolution Lunar Surface Reconstruction. International Archives of the Photogrammetry, Remote Sensing & Spatial Information Sciences, XLII-3(W1): 91-97.

[6]. Wu, B., Liu, W. C., Grumpe, A., Wöhler, C., 2016. Shape and Albedo from Shading (SAfS) for Pixel-Level DEM Generation from Monocular Images Constrained by Low-Resolution DEM. International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, XLI-B4: 521-527.

[7]. Grumpe, A., Wöhler, C., Liu, W. C., Wu, B., 2015. Construction of very high resolution DTMs based on NAC images using stereo analysis and shape from shading: A first glance. 46th Lunar and Planetary Science Conference, March 16-20, 2015, The Woodlands, Texas, USA.


Research Interests

Planetary Optical Remote Sensing

Image Processing

RS applications in Lunar PSRs, Mars Atmospheres, Planetary Landforms