Welcome to the PRML Lab!

The PRML Lab at Gachon University is led by Prof. Sang-Woong Lee. We mainly focus on developing computer vision algorithms for tasks like face recognition, action recognition, cancer detection, parking-lot occupancy detection, intelligent solar panel fault detection, etc. We are mainly interested in the following research areas:

  • Face Recognition
  • Action Recognition
  • Medical Image Analysis
  • Object Classification
  • Image Segmentation
  • Object Detection


Recent News


Mr. Sahadev got the best result on MEDICO challenge, December 2020.

Dr. My's paper, "Deep Softmax Collaborative Representation for Robust Degraded Face Recognition" has been published in Engineering Applications of Artificial Intelligence, January 2021.

Mr. Sahadev has received an award, “One of the best papers”, in Domestic Conference on KISM, May 2020.

Mr. Jae-Keol's paper, "Improving FastText with Inverse Document Frequency of Subwords" has been published in Pattern Recognition Letter, May 2020.



Selected publications


D. M. Vo, N.-Q. Nguyen, and S.-W. Lee, "Classification of Breast Cancer Histology Images Using Incremental Boosting Convolution Networks," Information Sciences, Vol. 482, May 2019, pp. 123-138(IF: 5.910 within Rank 10%).

D. M. Vo and S.-W. Lee, "Robust Face Recognition Using Hierarchical Collaborative Representation," Information Sciences, Vol. 432, March 2018, pp. 332-346(IF: 5.910 within Rank 10%)

C. Henry and S.-W. Lee, "Automatic Trimap Generation and Artifact Reduction in Alpha Matte using Unknown Region Detection," Expert Systems with Applications, Vol. 133, November 2019, pp. 242-259.(IF: 5.452 within Rank 10%).

S.-W. Lee, J. Park, S.-W. Lee, "Low Resolution Face Recognition Based on Support Vector Data Description," Pattern Recognition, Vol. 39, No. 9, 2006, pp. 1809-1812(IF: 7.196 within Rank 10%).

S.-W. Lee, S.-H. Moon, and S.-W. Lee, "Face Recognition under Arbitrary Illumination Using Illuminated Exemplars," Pattern Recognition, Vol. 40, No. 5, May 2007, pp. 1605-1620(IF: 7.196 within Rank 10%).



Project In progress


Development of Smart Signage Technology for Automatic Classification of Untact Examination and Patient Status Based on AI

AI-based Medical Information Analysis - Artificial Intelligence Health Care Research Center

Application of Artificial intelligence on inflammatory bowel disease

Smart Hearing Aid with improved SNR by AI

Development of Intelligent Software Technologies for Medical Data Analysis