International Journal (*corresponding author)
[IJ28] Bopu Zhao, Woowoen Gwun, Kiho Choi*, "GHMSA-Net: Gated Hierarchical Multi-Scale Self-Attention for Perceptually-Guided AV1 Post-Processing", IEEE Access, vol. 13, Aug. 2025
[IJ27] Zezhen Gai, Tanni Das, and Kiho Choi*, "DRGNet: Enhanced VVC Reconstructed Frames Using Dual-Path Residual Gating for High-Resolution Video", Sensors, vol. 25, no. 12, Jun. 2025
[IJ26] Woowoen Gwun, Kiho Choi*, and Gwang Hoon Park*, "Multi-Scale Self-Attention-Based Convolutional-Neural-Network Post-Filtering for AV1 Codec: Towards Enhanced Visual Quality and Overall Coding Performance", Mathematics, vol. 13, no. 11, May 2025
[IJ25] Tanni Das and Kiho Choi*, "DREFNet: Deep Residual Enhanced Feature GAN for VVC Compressed Video Quality Improvement", Mathematics, vol. 13, no. 10, May 2025
[IJ24] Mubashar Tariq and Kiho Choi*, "YOLO11-Driven Deep Learning Approach for Enhanced Detection and Visualization of Wrist Fractures in X-Ray Images", Mathematics, vol. 13, no. 9, Apr. 2025
[IJ23] Woowoen Gwun, Kiho Choi*, and Gwang Hoon Park*, "Multi-Type Self-Attention-Based Convolutional-Neural-Network Post-Filtering for AV1 Codec", Mathematics, vol. 12, no. 18, Sep. 2024
[IJ22] Tanni Das, Xilong Liang, Kiho Choi*, "Versatile Video Coding-Post Processing Feature Fusion: A Post-Processing Convolutional Neural Network with Progressive Feature Fusion for Efficient Video Enhancement", Applied Sciences, vol. 14, no. 18, Sep. 2024
[IJ21] Kiho Choi*, "Block Partitioning Information-Based CNN Post-Filtering for EVC Baseline Profile", Sensors, vol. 24, no. 4, Feb. 2024
[IJ20] Tanni Das, Kiho Choi*,and Jaeyoung Choi*, "High Quality Video Frames from VVC: A Deep Neural Network Approach", IEEE Access, vol. 11, pp.54254-54264, Jun. 2023
[IJ19] Jin Young Lee, Yongho Choi, The Van Le, and Kiho Choi*, "Efficient Feature Coding Based on Performance Analysis of Versatile Video Coding (VVC) in Video Coding for Machines (VCM)", Multimedia Tools and Application, Apr. 2023
[IJ18] Kiho Choi*, "A Study on Fast and Low-Complexity Algorithms for Versatile Video Coding", Sensors vol. 22, no. 22, Nov. 2022
[IJ17] Yinji Piao, Kiho Choi*, Kwang Pyo Choi, Minsoo Park and Min Woo Park, "Depth-wise Split Unit Coding Order for Video Compression", IEEE Transactions on Circuits and Systems for Video Technology, vol. 32, no. 9, pp.6375-6384, Sep. 2022
[IJ16] Kiho Choi, The Van Le, Yongho Choi, and Jin Young Lee, "Low-Complexity Intra Coding in Versatile Video Coding", IEEE Transactions on Consumer Electronics, vol. 68, no. 2, pp.119-126, May 2022
[IJ05] Jin Young Lee, The Van Le, Yongho Choi, and Kiho Choi*, "Low-Complexity Two-Step Lossless Depth Coding Using Coarse Lossy Coding", Multimedia Tools and Application, vol. 81, pp.14065-14079, Apr. 2022
[IJ14] Dan Grois, Alex Giladi, Kiho Choi, Min Woo Park, Yinji Piao, Minsoo Park, Kwang Pyo Choi, "Performance Comparison of Emerging EVC and VVC Video Coding Standards with HEVC and AV1," SMPTE Motion Imaging Journal, May 2021
[IJ13] Kiho Choi, J. Chen, D. Rusanovskyy, K. P. Choi, and Euee S. Jang, “An Overview of the MPEG-5 Essential Video Coding Standard,” IEEE Signal Processing Magazine, vol. 37, no. 3, pp.160-167, May 2020
[IJ12] Kiho Choi, J. Chen, M. W. Park, H. Yang, W. Choi, S. Ikonin, Y. Piao, S. Esenlik, M. Park, Y.-K. Wang, N. Choi, Y. Zhao, S. Jeong, H. Chen, A. Tamse, A. Filippov, H. Yang, X. Ma, J. Min, R. Chernyak, B. Jin, A. M. Kotra, S. Lee, H. Gao, C. Kim, T. Solovyev, K. P. Choi, V. Rufitskiy, M. Sychev, W. Xu, T. Wang, J. Park, “Video Codec Using Flexible Block Partitioning and Advanced Prediction, Transform and Loop Filtering Technologies,” IEEE Transactions on Circuits and Systems for Video Technology, vol. 30, no. 5, pp.1326-1345, May 2020
[IJ11] Jianle Chen, Marta Karczewicz, Yu-Wen Huang, Kiho Choi, Jens-Rainer Ohm, Gary J. Sullivan, “The Joint Exploration Model (JEM) for Video Compression with Capability beyond HEVC”, IEEE Transactions on Circuits and Systems for Video Technology, vol. 30, no. 5, pp.1208-1225, May 2020
[IJ10] Samuelsson, Jonatan, Kiho Choi, Jianle Chen, and Dmytro Rusanovskyy. “MPEG-5 Part 1: Essential Video Coding,” SMPTE Motion Imaging Journal, vol. 129, no. 7, pp.10-16, July 2020
[IJ09] Sang-hyo Park, Kiho Choi, and Euee S. Jang, “Zero coefficient-aware fast butterfly-based inverse discrete cosine transform algorithm,” IET Image Processing, vol.10, no. 2, pp.89-100, Feb. 2016
[IJ08] Kiho Choi and Euee S. Jang, “Data reuse-based fast subpixel motion estimation for high efficiency video coding,” Optical Engineering, vol. 53, no. 6, pp.063103, Jun. 2014
[IJ07] Kiho Choi and Euee S. Jang, “Royalty-Free Video Coding Standards in MPEG,” IEEE Signal Processing Magazine, vol. 31, no. 1, pp.145-155, Dec. 2013
[IJ06] Kiho Choi and Euee S. Jang, “Leveraging Parallel Computing in Modern Video Coding Standards,” IEEE MultiMedia, vol. 19, no. 3, pp.7-11, July 2012
[IJ05] Kiho Choi and Euee S. Jang, “Early TU Decision Method for Fast Video Encoding in High Efficiency Video Coding,” Electronics letters, vol. 48, no. 12, pp.689-691, Jun 2012
[IJ04] Kiho Choi and Euee S. Jang, “Fast CU Decision Method Based on Coding Tree Pruning for High Efficiency Video Coding,” Optical Engineering, vol. 51, no. 3, pp.030502, Mar. 2012
[IJ03] Sunyoung Lee, Kiho Choi and Euee S. Jang, “Adaptive search range adjustment scheme for fast motion estimation in AVC/H.264,” Optical Engineering, vol. 50, no. 6, pp.067402, Jun. 2011
[IJ02] Kiho Choi and Euee S. Jang, “Scaled zero coefficient-aware IDCT algorithm for fast video decoding,” Electronics Letters, vol. 46, no. 25, pp.1668-1669, Dec. 2010
[IJ01] Kiho Choi, Sunyoung Lee, and Euee S. Jang, “Zero coefficient-aware IDCT Algorithm for Fast Video Decoding,” IEEE Trans. Consumer Electronics, vol. 56, no. 3, pp.1822-1829, Aug. 2010
International Conference (*corresponding author,)
[IC18] Hyunmin Cho and Kiho Choi*, "Super-Resolution based Video Coding Scheme", 2022 Challenge on Learned Image Compression (CLIC) Workshop for CVPR 2022, pp.1778-1780 Jun. 2022
[IC17] Minjung Cho, Yongho Bae, and Kiho Choi*, "A study on impact of VVC coding tools for Video Coding for Machine," 2022 International Workshop on Advanced Image Technology (IWAIT), Jan. 2022
[IC16] Kwang Pyo Choi, Kiho Choi*, Min Woo Park, Minsoo Park, Yinji Piao, Minseok Choi, Heechul Yang, Youngo Park, "Overview of Baseline Profile in MPEG-5 Essential Video Coding Standard," 2021 SPIE conference, Aug. 2021
[IC15] Yinji Piao, Kiho Choi, M. W. Park, Minsoo Park, Kwang Pyo Choi.,"Split Unit Coding Order for Video Coding," IEEE International Conference on Multimedia (ICME), Jul. 2021
[IC14] Seungsoo Jeong, Yinji Piao, Min Woo Park, Minsoo Park, Anish Tamse, Narae Choi, Kiho Choi, Woongil Choi, Chanyul Kim, “Merge Mode With Motion Vector Difference,” IEEE International Conference on Image Processing (ICIP), Oct. 2020
[IC13] Zhuoyi Lv, Yinji Piao, Yue Wu, Kiho Choi, Kwang Pyo Choi, “Scan region-based coefficient coding in avs3,” IEEE International Conference on Multimedia (ICME), Jul. 2020
[IC12] Chuan Zhou, Zhuoyi Lv, Yinji Piao, Yue Wu, Kiho Choi, Kwang Pyo Choi, “Adaptive Motion Vector Resolution in AVS3 Standard,” IEEE International Conference on Multimedia (ICME), Jul. 2020
[IC11] Kiho Choi, M. W. Park, K. P. Choi, J. Park, J. Chen, Y.-K. Wang, R. Chernyak, S. Ikonin; D. Rusanovskyy, W.-J. Chien, V. Seregin, M. Karczewicz, “MPEG-5: essential video coding standard,” Applications of Digital Image Processing XLII, vol. 11137, pp.1113710, Aug. 2019
[IC10] J Samuelsson, Kiho Choi, J Chen, D Rusanovskyy, “MPEG-5 EVC”, SMPTE 2019, pp.1-11, Dec. 2019
[IC09] Kiho Choi, Jianle Chen, Anish Tamse, Haitao Yang, Min Woo Park, Sergey Ikonin, Woongil Choi, Semih Esenlik “New Video Codec for High-Quality Video Service and Emerging Applications,” Data Compression Conference (DCC). IEEE, Mar. 2019
[IC08] Alexander Alshin; Elena Alshina; Madhukar Budagavi; Kiho Choi; Junghye Min; Michael Mishourovsky; Yinji Piao; Ankur Saxena, “Coding efficiency improvements beyond HEVC with known tools,” Applications of Digital Image Processing XXXVIII, vol. 9599, pp.95991C, Sep. 2015
[IC07] Sang-hyo Park, Kiho Choi, Gyeong-gi Noh, and Euee S. Jang, “Frame-based Adaptive selection of ALF for Fast HEVC Decoding,” IEEE international Symposium on Broadband Multimedia Systems and Broadcasting (BMSB), Jun. 2012
[IC06] Sang-hyo Park, Kiho Choi, and Euee S. Jang, “CU depth-based ALF Decision for Fast HEVC Encoding,” IEEE 16th International Symposium on Consumer Electronics (ISCE), Jun. 2012
[IC05] Kiho Choi, Sunyoung Lee, and Euee S. Jang, “Fast Mode Decision for MPEG-4 AVC/H.264 using Spatio-temporal Correlation,” Picture Coding Symposium (PCS) IEEE, pp.481-484, May. 2012
[IC04] Ki hoon Lee, Kiho Choi, and Euee S. Jang, “FIXED-POINT ZERO COEFFICIENT-AWARE FAST IQ-IDCT ALGORITHM,” IEEE International Conference on Consumer Electronics - Berlin (ICCE-Berlin), Sep. 2011
[IC03] Kiho Choi, Ki hoon Lee, Gyeong Gi Noh and Euee S. Jang, “An Efficient AVC/H. 264 Intra Mode Scheme for Visual Quality Improvement,” International Conference on Multimedia Information Technology and Applications (MITA), Jun. 2011
[IC02] Kiho Choi, Ki hoon Lee, Eun Ji Kim and Euee S. Jang, “ZERO COEFFICIENT-AWARE FAST IQ-IDCT ALGORITHM,” IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC), Nov. 2010
[IC01] Sunyoung Lee, Myungjung Lee, Kiho Choi, and Euee S. Jang, “Unified Framework of Frame Skipping and Interpolation for Efficient Video Compression,” IEEE International Conference on Network Infrastructure and Digital Content (IC-NIDC), Nov. 2009
Domestic Journal
[DJ07] Xilong Liang, Kiho Choi, "Analysis of Next-Generation VVC/H.266 Standard for Gaming Content", Journal of Broadcast Engineering, vol. 29, no. 7, pp.1157-1167, Dec. 2024
[DJ06] Kiho Choi, "Performance Evaluation of Open Source Codec XEVE, XEVD for MPEG-5 Essential Video Coding", Journal of Broadcast Engineering, vol. 29, no. 1, pp.28-41, Jan. 2024
[DJ05] Kiho Choi, “ECM technology for Post VVC standard,” Information and communcations magazine, vol. 40, no. 9, Sep. 2023
[DJ04] Kiho Choi, "Neural Network based Video Coding in JVET", Journal of Broadcast Engineering, vol. 27, no. 7, pp.1021-1033, Dec. 2022
[DJ03] Kiho Choi, and Geon Bang, “MPEG-I Video Standard Trend,” Broadcasting and Media Magazine, vol. 23, no. 4, pp.41-57, Oct. 2018
[DJ02] Kiho Choi, “Standard Trend of FVC 360 video technology,” Electronic Engineering Magazine, vol. 45, no. 2, Feb. 2018
[DJ01] Soobin Park, Kiho Choi, Sanghyo Park, and Euee S. Jang, “Efficient parallelization implementation technique of PU-level ME for fast HEVC encoding,” Journal of Korean Society of Broadcast Engineers, vol. 18, no. 2, pp.178-184, Mar. 2013
Domestic Conference
[DC12] Junghyeon Lee, Kiho Choi*, "Adaptive Planar Weight Adjustment for Improving DIMD Performance", 2025 The Korean Institute of Broadcast and Media Engineers Summer Conference, Jun. 2025
[DC11] Mubashar Tariq, Kiho Choi*, "A web-based, AI-assisted deep learning application utilizing YOLO11 for precise detection and visualization of wrist fractures in X-ray images", 2025 The Korean Institute of Broadcast and Media Engineers Summer Conference, Jun. 2025
[DC10] Xilong Liang, Junghyeon Lee, Bopu Zhao, Zezhen Gai, Kiho Choi*, "Evaluating the Coding Efficiency of ECM and VTM for Low-Delay on Gaming Contents", 2025 The Korean Institute of Broadcast and Media Engineers Summer Conference, Jun. 2025
[DC09] Zezhen Gai, Bopu Zhao, Tanni Das, Kiho Choi*, "Post-Filtering in Neural Network Video Coding: A Review of Current Techniques and Future Directions", Conference of the Korean Institute of Communication and Information Sciences, Nov. 2024
[DC08] Seoyeon Jang, Tanni Das, Xilong Liang, Woowon Kwon, Kiho Choi*, "CNN-based poster filter for low-quality screen content video", 2024 The Korean Institute of Broadcast and Media Engineers Summer Conference, Jun. 2024
[DC07] Xilong Liang, Tanni Das, Kiho Choi*, "Experiment on CNN based Poster-filter using JVET NNVC In-loop filtering", 2024 The Korean Institute of Broadcast and Media Engineers Summer Conference, Jun. 2024
[DC06] Xilong Liang, Jang Seoyeon, Kiho Choi*, "Introduction to Video Coding Compression Technology for Machines: FCVCM Standard", Conference of the Korean Institute of Communication and Information Sciences, Oct. 2023
[DC05] Minsoo Park, Min Woo Park, Kiho Choi, Yinji Pyo, Kwang Pyo Choi, “EVC partitioning method, ” Fall Conference of Korean Institute of Communications and Information Sciences, Nov. 2020
[DC04] Kyu Dong Kim, Kiho Choi, Sanghyo Park, and Euee S. Jang, “A Study on Trends and Patent DB Analysis of Video Compression Standard,” Spring Conference of Korean Institute of Communications and Information Sciences, Jun. 2013
[DC03] Seungbo Hong, Kiho Choi, Sanghyo Park, and Euee S. Jang, “Parallelization mathod of IDCT with SIMD for fast HEVC decoding,” Spring Conference of Korean Society of Broadcast Engineers, Jun. 2013
[DC02] Soobin Park, Kiho Choi, Sanghyo Park, and Euee S. Jang, “Efficient parallelization implementation technique of PU-level ME for fast HEVC encoding,” Fall Conference of Korean Society of Broadcast Engineers, Nov. 2012
[DC01] Gyeong-gi Noh, Kiho Choi, and Euee S. Jang, “CU-Level Parallelization Method for HEVC Decoder,” Fall Conference of Korean Society of Broadcast Engineers, Nov. 2011