Ongoing Research Projects

Development of an Explainable Pet Behavior and Emotion Recognition Technology Using Multimodal Multitask Learning

• Role: Principal Investigator

• Funding Agency: National Research Foundation of Korea (NRF)

• Research Period: 2026. 3. 1. – 2029. 2. 28.

• Research Outcomes:

  1. (Poster) "데이터 전처리가 합성곱 변분 오토인코더 기반 얼굴 표정 이미지 생성에 미치는 영향 분석," 한국멀티미디어학회 춘계학술발표대회 논문집 제29권 1호, pp. 43-46, 2026년 5월.

  2. (SCIE) "Stability–Plasticity Trade-Off in Sequential Adaptation of Traffic Sign Detectors under Environmental and Cross-Dataset Shifts," Applied Sciences, vol. 16, no. 20, Oct. 2026, Art. no. 10127.

  3. (Oral) "Hybrid Feature Fusion for Binary Anger Recognition in Small-Scale Facial Expression Datasets," in Proc. 18th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Bangkok, Thailand, 9-12 November 2026, accepted.

  4. (Oral) "Rule-Mate: Retrieval Optimization for RAG-Based Question Answering over University Academic Regulations," in Proc. 18th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Bangkok, Thailand, 9-12 November 2026, accepted.

  5. (Oral) "A Data-Centric CVAE Framework for Emotion-Aware Facial Expression Image Generation," in Proc. 18th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Bangkok, Thailand, 9-12 November 2026, accepted.

  6. (Oral) "Enhancing Facial Emotion Recognition through Multi-Source CNN Ensembles," in Proc. 18th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Bangkok, Thailand, 9-12 November 2026, accepted. [Code]

Completed Research Projects

Facial Emotion Recognition via Fusion of Deep and Handcrafted Features

• Role: Principal Investigator

• Funding Agency: Dongduk Women's University

• Research Period: 2025. 12. 1. – 2026. 11. 30.

• Research Outcome:

  1. (SCIE) "Facial Emotion Recognition via Fusion of Deep and Handcrafted Features," Sensors, vol. 26, no. 14, Jul. 2026, Art. no. 4522.

Data Augmentation Using a Convolutional Autoencoder for Age Estimation from Facial Images

• Role: Principal Investigator

• Funding Agency: Dongduk Women's University

• Research Period: 2024. 12. 1. – 2025. 11. 30.

• Research Outcome:

  1. (KCI) "Data Augmentation Using a Convolutional Autoencoder for Age Estimation from Facial Images," Journal of Multimedia Information System, vol. 12, no. 3, pp. 95-110, Sep. 2025. [Code]

Multimodal Emotion Recognition and Expression Technologies for Realistic Interaction in Metaverse

• Role: Principal Investigator

• Funding Agency: National Research Foundation of Korea (NRF)

• Research Period: 2022. 9. 1. – 2025. 2. 28.

• Research Outcomes:

1. (Poster) "An Ensemble Learning Approach for Emotion Recognition from Gait," in Proc. 10th Anniversary Korea-Japan Joint Workshop on Complex Communication Sciences (KJCCS), Beppu, Japan, 29-31 January 2024, pp. 1-4.

2. (SCIE) "Facial Animation Strategies for Improved Emotional Expression in Virtual Reality," Electronics, vol. 13, no. 13, Jul. 2024, Art. no. 2601.

3. (Poster) "Data Augmentation Using Convolutional Autoencoder for Facial Emotion Recognition," in Proc. 24th International Conference on Electronics, Information, and Communication (ICEIC), Osaka, Japan, 19-22 January 2025, pp. 1-4. [Code]

4. (KCI) "Facial Emotion Recognition Using Geometric and HOG Features," Journal of Korea Multimedia Society, vol. 28, no. 1, pp. 112-125, Jan. 2025.

5. (KCI) "Facial Emotion Recognition in Children Using Convolutional Neural Network with Data Augmentation," Journal of the Korea Society of Computer and Information, vol. 30, no. 2, pp. 21-31, Feb. 2025.

6. (KCI) "Facial Emotion Recognition Using Canny Edge Detection Operator and Histogram of Oriented Gradients," Journal of Multimedia Information System, vol. 12, no. 1, pp. 1-12, Mar. 2025.

Improving BMI Classification Accuracy with Oversampling and 3-D Gait Analysis on Imbalanced Class Data

• Role: Principal Investigator

• Funding Agency: Dongduk Women's University

• Research Period: 2024. 6. 1. – 2025. 5. 31.

• Research Outcome:

1. (KCI) "Improving BMI Classification Accuracy with Oversampling and 3-D Gait Analysis on Imbalanced Class Data," Journal of the Korea Society of Computer and Information, vol. 29, no. 9, pp. 9-23, Sep. 2024. [Code]

Gait-Based Gender Classification Using a Correlation-Based Feature Selection Technique

• Role: Principal Investigator

• Funding Agency: Dongduk Women's University

• Research Period: 2023. 12. 1. – 2024. 11. 30.

• Research Outcome:

1. (KCI) "Gait-Based Gender Classification Using a Correlation-Based Feature Selection Technique," Journal of the Korea Society of Computer and Information, vol. 29, no. 3, pp. 55-66, Mar. 2024. [Code]

Survey of Technology for Extracting Terrain Features from Satellite Images

• Role: Principal Investigator

• Funding Agency: Agency for Defense Development (ADD)

• Research Period: 2023. 9. 11. – 2023. 12. 8.

• Research Outcome:

1. (KCI) "Path Loss Prediction Using an Ensemble Learning Approach," Journal of the Korea Society of Computer and Information, vol. 29, no. 2, pp. 1-12, Feb. 2024.

2. (SCIE) "Machine Learning-Based Path Loss Prediction With Novel Diffraction and Morphology Features," IEEE Antennas and Wireless Propagation Letters, vol. 24, no. 7, pp. 2004-2008, Jul. 2025.

Development of Emotion Recognition Technology Based on Artificial Intelligence

• Role: Principal Investigator

• Funding Agency: Dongyang Mirae University

• Research Period: 2022. 7. 8. – 2023. 2. 28.

• Research Outcome:

1. (KCI) "Multi-Time Window Feature Extraction Technique for Anger Detection in Gait Data," Journal of the Korea Society of Computer and Information, vol. 28, no. 4, pp. 41-51, Apr. 2023. [Code]

Method of Implementing Channel Coding for Multi-Receiver Millimeter Wave Data Link

• Role: Principal Investigator

• Funding Agency: Agency for Defense Development (ADD)

• Research Period: 2022. 8. 1. – 2022. 10. 31.

• Research Outcome:

1. (KR) LDPC code decoding method and electronic apparatus thereof, 10-2844912, Aug. 6, 2025.