Title :
Comparison of motion compensation using different degrees of sub-pixel accuracy for interfield/interframe hybrid coding of HDTV image sequences
Author_Institution :
Panasonic Advanced TV-Video Laboratories Inc., Burlington, NJ, USA
Abstract :
The bit rates for interfield/interframe hybrid coding of high-definition television (HDTV) image sequences with motion compensation using 1, 1/2, 1/4, and 1/8 pixel accuracy. Three sets of HDTV image sequences with panning, zooming, local motion and different spatial details are tested. The coding performance of bilinear interpolation is compared to Lagrange interpolation for obtaining sub-pixel precision. A means for finding the best matching motion block and obtaining the subpixel image values which dramatically reduces simulation times is discussed
Keywords :
high definition television; image coding; image sequences; interpolation; motion estimation; HDTV; Lagrange interpolation; best matching motion block; bilinear interpolation; high-definition television; image sequences; interfield/interframe hybrid coding; local motion; motion compensation; panning; sub-pixel accuracy; zooming; Bit rate; HDTV; Image coding; Image sequences; Interpolation; Lagrangian functions; Motion compensation; Pixel; TV; Testing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1992. ICASSP-92., 1992 IEEE International Conference on
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-0532-9
DOI :
10.1109/ICASSP.1992.226175
