@article{Sarwer2008Fast,
  title={Fast sum of absolute transformed difference based 4×4 intra-mode decision of H.264/AVC video coding standard},
  author={Sarwer, Mohammed Golam and Po, Lai Man and Wu, Q. M. Jonathan},
  journal={Signal Processing Image Communication},
  volume={23},
  number={8},
  pages={571-580},
  year={2008},
}