- Modelling of image formation of optical small Earth observation satellite.  
- Proposal of a AI-based image deconvolution for optical small satellite.  
- Experiments results for VNREDSat-1 image deconvolution.

Theoretical results:
- Research on quality factors of satellite images focusing on on-board optical instrument.
- Research and proposal of a image deconvolution model using Artificial Inteligence method applied for VNREDSat-1 satellite.
- Experiments of utilization of Convolution Neural Network for VNREDSat-1 image deconvolution using Graphics Processing Units for harware computation optimization.

Applied results: The proposed method can be applied for VNREDSat-1 image pre-processing.

- Scientific papers in referred journals (list):
1)    Ngo Duy Tan, Bui Trong Tuyen, Pham Minh Tuan et.al, Radiometric calibration for earh observation satellite optical instrument, Communications in Physics (VAST), ISSN 0868-3166, Special Issue Volume 29, October 2019.
2)    T.T.B.Hong, B.T.Tuyen, P.M.Tuan and N.D.Tan, Image quality estimation for satellite optical instrument using calibration site in Vietnam, International Journal of Advanced Research (IJAR), ISSN 2320-5407, 10/2019, DOI URL: http://dx.doi.org/10.21474/IJAR01/9884
3)    T. T.B. Hong, B.T.Tuyen, P.M.Tuan and N.D.Tan, Image quality computation and its application for earth observation optical satellite, International Journal of Advanced Research in Engineering and Technology (IJARET), ISSN Online: 0976-6499, 12/2020 (Scopus).
4)    T. T.B. Hong, B.T.Tuyen, P.M.Tuan and N.D.Tan, Image Deconvolution for Optical Small Satellite with Deep Learning and Real-time GPU Acceleration, Journal of Real-time image processing, SCIE Journal, Springer Q2 (Accepted for publication).