Title :
An Efficient MPEG2 to H.264 Half-Pixel Motion Compensation Transcoding
Author :
Tang, Qifu ; Ward, Rabab K. ; Nasiopoulos, Panos
Author_Institution :
Electr. & Comput. Eng., British Columbia Univ., Vancouver, BC, Canada
Abstract :
An efficient MPEG2 to H.264 half-pixel motion compensation transcoding method is proposed. The Inter macroblock transcoding is implemented in the transform domain. An algorithm is designed to compensate for the errors which arise because of the different half-pixel interpolation procedures used by MPEG2 and H.264/AVC. The experimental results show that the PSNR values of the transcoded H.264 streams result in significant improvement (average 5.5 dB) after we reduce the half-pixel interpolation errors.
Keywords :
interpolation; motion compensation; transform coding; video coding; video streaming; H.264 stream; MPEG2; half-pixel interpolation; motion compensation transcoding; transform domain; Automatic voltage control; Discrete cosine transforms; Finite impulse response filter; Interpolation; Motion compensation; Motion estimation; PSNR; Transcoding; Transform coding; Video sequences; H.264; Interpolation; MPEG2; Transcoding;
Conference_Titel :
Image Processing, 2006 IEEE International Conference on
Conference_Location :
Atlanta, GA
Print_ISBN :
1-4244-0480-0
DOI :
10.1109/ICIP.2006.312505
