According to the reviewer’s comment, we modified and added some keywords as follows: We replaced “Keywords: VVC; HEVC; video coding; transform; computational complexity” With “Keywords: VVC (Versatile Video Coding), HEVC (High Efficiency Video Coding, Linear Inverse Transform, computational complexity, DCT (Discrete Cosine Transform), Discrete Sine Transform (DST), BD-rate” Comment) Introduction: The authors should add the main contribution s briefly at the end of the introduction.
Koo, M.; Salehifar, M.; Lim, J.; Kim, S.-H. Low Frequency Non-Separable Transform (LFNST), 2019 Picture Coding Symposium (PCS), 2019, pp. 1-5, doi: 10.1109/PCS48520.2019.8954507.