OU-YANG Wan-li, XIAO Chuang-Bai, LIU Guang. A New IDCT and Motion Compensation Algorithm Based on VLIW OU-YANG Wan-li,XIAO Chuang-Bai,LIU Guang[J]. Acta Electronica Sinica, 2005, 33(11): 2074-2079.
OU-YANG Wan-li, XIAO Chuang-Bai, LIU Guang. A New IDCT and Motion Compensation Algorithm Based on VLIW OU-YANG Wan-li,XIAO Chuang-Bai,LIU Guang[J]. Acta Electronica Sinica, 2005, 33(11): 2074-2079.DOI:
using a very long instruction word (VLIW) architecture view
the existing state of the art algorithms were compared with an algorithm that is tailored for VLIW architecture in the form of matrix.The architecture's character is further exploited to design a new fast inverse discrete cosine transform (IDCT) algorithm.Compared with existing algorithms
the new algorithm reduces the number of instruction cycles needed.Further
the register character of VLIW is used for merging motion compensation with IDCT (DCT) in the video codec process.This achieves 50% speed improvement.The concept is applicable for MPEG1/2/4 and H.264/AVC.